A Letter From Coach Angela

Welcome. If you're reading this, you've signed up for one of the most demanding endurance events on the planet — or you're seriously thinking about it. Either way, I want to tell you what this playbook is, and what it isn't, before we go any further.

This isn't a training plan. We do training plans inside ANC, custom to you, your life, your race, and your physiology. This is something different. This is the language of racing the full distance — the physiology you need to understand, the frameworks that turn data into decisions, and the mindset that holds it all together when the day gets long and the body starts negotiating.

Here's the most important thing I can tell you up front: the full distance is not a longer 70.3. It's a different sport. The margin for error disappears over 140.6 miles. Pacing mistakes that cost you minutes at the half cost you hours at the full. Fueling errors that you can muscle through in five hours bury you in ten. The athlete who races a great 70.3 by going to the well early often races a terrible full distance using the same playbook.

I've raced the full distance more times than I can count, on every continent that runs one, in every kind of weather, against every kind of field. I've had days where everything aligned and days where it didn't. The single biggest pattern I've seen — in my own racing and in coaching hundreds of athletes through this distance — is this: great full-distance races are not the result of one heroic effort. They are the result of hundreds of small, correct decisions made when it would have been easier to make the wrong one.

Easier to push when you should settle. Easier to skip a gel when your stomach feels full. Easier to surge on the climb because everyone else is. Easier to start the marathon at "feel" pace instead of disciplined Zone 1 pace. Easier to negotiate with yourself at mile 18. The athletes who race the full distance well are not the ones with the most willpower in those moments — they're the ones who decided weeks before that they wouldn't have to make those decisions on the fly because the answer was already written down. That's what this playbook is for.

140.6 miles is long enough to humble anybody and long enough to forgive almost nothing. Eight to seventeen hours is enough time for adrenaline to wear off, for the heat to catch up, for the fueling errors of the bike to show up on the run, for the mental script to either save you or sink you. It's a distance that rewards patience for the first six hours and courage in the last three. Most athletes do the opposite. We're going to fix that.

Whatever you've built in training is enough. Your job on race day is to access it cleanly. That means starting quieter than you feel, fueling earlier than you want, riding slower than your legs say they can, and trusting the body you've trained — not the one adrenaline is selling you in the first hour.

"Inside out first. Build the engine. Trust what you've built. Then — and only then — let's see what you've got."

Read this whole document before race week. Read the race-day sections again the week of. And on race morning, read nothing — you'll already know.

Let's get to work.

— Coach Angela

The ANC Way

Every coaching philosophy is built on a handful of non-negotiables. Mine come from two decades of racing and coaching, and they show up in every plan we write, every workout we prescribe, and every race-day decision we make. For the full distance, four pillars matter most.

1. Aerobic First, Always

The full distance is an aerobic event from start to finish. There is no segment of your race day that is "anaerobic." Even your hardest hill is fueled by aerobic metabolism if you've paced it correctly. That means the biggest, most durable gains in full-distance racing don't come from intervals or threshold work — they come from a deep, vast, well-developed aerobic system.

What this looks like in practice: 75–85% of your weekly training hours are easy. Conversational. Nasal-breathing-possible easy. If that feels too slow, that's because your nervous system is used to a sympathetic, "always-on" state — and that's exactly what we're training out of you. Easy training builds mitochondrial density, capillarization, fat oxidation, cardiac stroke volume, and the orthostatic robustness your body needs to repeat hard sessions week after week for eight, ten, twelve months.

For the full distance specifically, easy work also builds durability — the capacity of your tendons, joints, and connective tissue to absorb 6+ hours of continuous load. That capacity is not built by intervals. It's built by hours.

2. Inside Out First

Workouts sit on top of a foundation. The foundation is sleep, fueling, stress regulation, and life stability. If the foundation is cracked, the workouts don't stick — they break you down without building you up. We always address the inside (recovery, food, sleep, nervous system) before we add more from the outside (volume, intensity, races).

This becomes existential in a full-distance build. A 10-month build leaves zero room for the consequences of under-recovery: illness, injury, burnout, and the slow accumulation of fatigue that turns a great athlete into a flat one by race week. The athletes who arrive at the start line ready are the ones who treated recovery as training, not as the absence of it.

3. Repeatable Before Harder

A workout you can repeat next week beats a hero session that breaks you. We design training as a sequence of repeatable doses, not isolated heroic days. If a session leaves you trashed for three days, the math doesn't work — you lost more than you gained.

In a full-distance build, this matters even more. You're stacking workload across three sports for the better part of a year. If any single week breaks the next two, you've lost the compounding effect that makes the full distance possible. The hardest part of coaching this distance is restraining athletes who can do more today from doing more today, because we know the cost shows up next month.

4. Trust What You've Built

Race day is an expression of training, not an audition for it. You don't earn fitness on race morning. You earned it in the months prior. The job on race day is to spend what you've banked — wisely, patiently, with discipline — not to chase a level of fitness you haven't deposited.

This shows up most painfully in the first three hours of the bike, when fresh legs and adrenaline whisper that you're stronger than you are. Trust the plan. Trust the numbers. Trust the work.

The Mindset Shift — 70.3 vs Full-Distance

If you've raced a 70.3, you already have instincts. Some of those instincts will hurt you at the full distance. The two distances feel similar in the build — long rides, long runs, brick workouts — but they race completely differently. Here's the shift.

Intensity Drops Dramatically

At a 70.3, you race the bike at roughly 79–89% of Critical Power. At the full distance, you race the bike at 65–78% of CP — sometimes lower. That difference of 10–15 percentage points doesn't sound huge until you do the math: a 70.3 cyclist holding 220 watts is racing the full distance at roughly 180. The full-distance bike effort is supposed to feel almost too easy for the first three to four hours. If it doesn't, you're over-cooking.

Run pacing follows the same logic. A 70.3 run targets 85–95% of Critical Speed. A full-distance run starts at 75–82% of CS. Slower than you think. Slower than your training paces. Slower than your ego wants.

Duration Becomes The Whole Story

In a 70.3, duration is real but manageable. You can be slightly off on fueling, slightly aggressive on pacing, slightly under-recovered going in, and still have a respectable day. In a full distance, those small errors compound exponentially. Five hours forgives. Ten hours doesn't.

Heat exposure that's tolerable for five hours becomes a medical event over ten. A fueling rate that works for two hours can shut down your gut by hour six. Pacing that feels right at hour three becomes unsustainable by hour seven. The full distance multiplies every small mistake into a much larger one.

Surges Become Catastrophic

In a 70.3, a few power spikes on hills or to make a pass are absorbed by your finite anaerobic capacity (W' on the bike, D' on the run). The reservoir is small but it's enough. In a full distance, every match you burn in the first six hours is a match you don't have for the marathon. The reservoir is the same size — but the race is twice as long.

This is why disciplined full-distance athletes do not race the climbs. They survive the climbs.

Fueling Becomes The Decider

At a 70.3, you can probably finish the race even if your fueling falls apart on the run — you might cramp, you might shuffle, but you'll cross the line. At a full distance, fueling failure is race-ending. The athletes who finish the full distance well are the ones who treat fueling as the most important training they do for 12 weeks before the race.

The Practical Translation

"If you're questioning your run at hour three of the bike, you're riding too hard. Your only job on the bike is to make the marathon runnable."

Your Engine — Five Landmarks

You don't need an exercise physiology degree to race the full distance well. But you do need to understand five landmarks — five points on your physiological map — because they shape every decision we make in training and on race day. I'll explain each one in plain language, and then I'll tell you why it matters to you over 140.6 miles.

1. LT1 — The First Lactate Threshold

LT1 is the upper edge of what we call "truly easy." Below LT1, your body is producing lactate at a very low rate and clearing it just as fast — net lactate barely rises. You can hold this all day, fueled mostly by fat, with minimal metabolic stress. For most trained athletes, LT1 sits around 85% of Critical Speed on the run and around 75–80% of Critical Power on the bike.

Why it matters for the full distance: Your entire full-distance race lives at or below LT1. Read that again. The whole race. Bike and run. The fastest full-distance racers in the world aren't racing above LT1 — they have higher LT1s than you do, so they're going faster at the same physiological cost. That's the whole game. Train below LT1 most of the week to push LT1 up over time, and race below LT1 on race day to express it.

2. The Aerobic Crossover

As intensity rises, your body shifts its fuel mix from predominantly fat toward predominantly carbohydrate. The aerobic crossover is the zone where that shift happens. Below it, you're burning lots of fat and sparing carbs. Above it, you're burning carbs at an accelerating rate.

Why it matters for the full distance: A trained full-distance athlete races just below the aerobic crossover for the first half of the bike. This preserves glycogen for the back half of the bike and the entire run. Cross above the crossover too early and you've spent your carb stores on power you didn't need — and the run will pay the bill. Getting this right is why fueling and pacing are inseparable in this distance.

3. CS / CP — Critical Speed and Critical Power

CS (run) and CP (bike) represent the highest steady-state effort you can sustain for roughly 30–50 minutes before your physiology starts to fall apart. Think of CS/CP as the boundary between "hard but sustainable" and "this will end soon." Above this line, lactate accumulates faster than you can clear it, oxygen demand outpaces supply, and the clock starts ticking.

Why it matters for the full distance: You should not touch CS or CP in a full-distance race. Not on the bike. Not on the run. Not even on the biggest hill. Not in the final 10K. Crossing this line spends matches you cannot replace over the next several hours. CS and CP are the ceiling on training intervals — they are not race targets.

4. sVO₂max — Speed/Power at Maximal Oxygen Uptake

sVO₂max is the speed (or power) at which you're using oxygen as fast as your body can deliver it. You can hold this for roughly 4–8 minutes before exhaustion.

Why it matters for the full distance: You will not race anywhere near sVO₂max. Ever. But training that touches it occasionally — short intervals at near-maximal effort — lifts the ceiling on everything below it, including the LT1 you'll race at. We use it sparingly and almost never in the final 8 weeks before a full distance.

5. D' (run) / W' (bike) — Your Finite Anaerobic Capacity

D' and W' are the finite "battery" you carry above CS/CP. Think of it as a fixed-size jar of matches. Every time you surge above CS or CP — a hill, a pass, a headwind, an emotional moment — you burn a match. Once the jar is empty, you cannot work above CS/CP anymore, no matter how much you want to. The jar refills slowly when you drop back below CS/CP, but it never fully refills mid-race.

Why it matters for the full distance: This is the single most under-appreciated landmark in long-course racing. In a full distance, you should arrive at T2 with most of your matches still in the jar. The athletes who do are the ones who run a marathon. The athletes who spent their matches surging climbs on the bike are the ones who walk by mile 18.

"In a 140.6, you are not trying to go fast. You are trying to not slow down."

Pacing Instruments — HR, CS/CP, Power, RPE

You have four ways to measure effort on race day. Each one tells a different part of the story. Each one has strengths and blind spots. No single instrument should fly solo — the magic is in how you combine them, and in a full-distance race, the right instrument to listen to changes as the day unfolds.

Heart Rate

HR is a measure of internal load — what the effort is costing your cardiovascular system. It integrates everything: heat, hydration, sleep, stress, caffeine, fatigue, fueling state. That makes it incredibly informative — and incredibly noisy.

Pros: Reflects internal cost. Catches heat stress and dehydration before pace/power does. A great long-game indicator of whether you're managing the day. Honest about under-recovery before you are.

Cons: Lags 60–120 seconds behind effort. Drifts upward over hours even at the same pace (cardiac drift — sometimes 15–20 bpm by hour eight). Can be artificially elevated by adrenaline, caffeine, or poor sleep. Can be artificially suppressed by deep fatigue or under-fueling. Chest straps are reliable; optical wrist sensors are often not.

Best use in a full distance: A ceiling for the first 60–90 minutes of the bike when adrenaline can fool you. A reality check on the run for the first 13.1 miles. Less reliable late in the race — drift takes over and the number stops being meaningful.

Power (Bike) and Critical Speed/Pace (Run)

Power is the gold standard for bike pacing. Pace, anchored to your Critical Speed, is the gold standard for run pacing. Both are external output — what the world sees.

Pros: Specific. Instant. Power is honest on hills and in wind (a watt is a watt). Pace, anchored to CS, lines up directly with goal time. Both pair cleanly with the zones we test for.

Cons: Neither knows about your day. Heat, fatigue, and dehydration silently raise the cost of the same number. You can be holding "target power" while your body cooks underneath you. GPS pace can lie on tree-covered or twisting run courses.

Best use in a full distance: Power is your primary dial for the bike, especially miles 0–80. Pace anchors your run plan for miles 1–18. After that, both become guides rather than dictators.

Running Power

For athletes using a running power meter, the same logic as bike power applies: honest on hills, honest in wind, immune to GPS issues.

Best use: Hilly or windy run courses. A pacing safety net when GPS pace lies. Useful through mile 18; less useful as a strict target in the final 10K when RPE should govern.

RPE — Rate of Perceived Exertion

RPE is your subjective sense of effort on a 1–10 scale. The oldest and most universal pacing tool — and, when calibrated through training, one of the most powerful.

Pros: Always available. Free. Integrates everything you're feeling — physiological, mental, emotional. The only instrument that adjusts in real time to how the day is unfolding.

Cons: Unreliable in the first 60–90 minutes when adrenaline is high. Has to be calibrated by training — untrained RPE systematically under-rates effort early and over-rates it late.

Best use in a full distance: The boss in the last hour of every leg. When HR, power, and pace disagree, trained RPE breaks the tie. In the final 10K of the marathon, RPE is essentially the only instrument that matters.

The Golden Rule

When the numbers say "easy" but your body says "hard" — trust the body. The data is a model. RPE is reality.

How To Triangulate

The single most important pacing concept in this playbook: power/pace tells you what you're doing. HR tells you what it costs. RPE is the tiebreaker.

When two instruments agree and one disagrees, trust the two. Examples:

• Power on target, HR rising, RPE rising: the day is getting expensive. Hold pace but address the cost — drink, cool, sodium, carbs.
• Power on target, HR on target, RPE high: probably mental, probably temporary. Breathe, reset, keep going. Don't change pace yet.
• Power on target, HR low, RPE low: day is unfolding well. Stay disciplined — don't chase. The number is the number for a reason.
• Power below target, HR on target, RPE high: something is wrong. Heat, fueling, fatigue. Address the cause; don't force the pace.

Your Zones — Bike & Run

Zones are how we convert physiology into action. Here are the ANC zone tables for the bike (anchored to Critical Power) and the run (anchored to Critical Speed). These percentages assume your CP and CS are recent and accurate — if they're outdated or guessed, the zones will lie to you.

Run Zones — % of Critical Speed

Key markers: LT1 ≈ 85% CS. LT2 ≈ 105% CS (Critical Speed itself).

Full-Distance Run Targets

Bike Zones — % of Critical Power

Full-Distance Bike Targets

If your zones don't feel right — if the prescribed paces feel impossible, or way too easy — that's a signal that your CS or CP is outdated. Re-test. Don't race off old numbers.

Testing That Tells The Truth

Zones built from a guess will lie to you on race day. Zones built from an outdated test will lie to you on race day. The single most valuable thing you can do for your pacing — especially over 140.6 miles where small errors compound — is to test honestly, test recently, and retest periodically.

Why We Use Critical Speed / Critical Power Testing

Traditional FTP and LTHR testing rely on a single 20-minute or 30-minute all-out effort, then estimate threshold by subtracting a percentage. That works — barely — but it's noisy, demanding to execute well, and gives you a single data point. Critical Speed and Critical Power testing uses multiple shorter efforts at different durations, which mathematically separates your aerobic ceiling (CS/CP) from your anaerobic capacity (D'/W'). You get two numbers instead of one, both of which matter — especially for the full distance, where understanding your finite match supply (D'/W') is what protects your race.

Bike Testing — The 3-6-12 Protocol

Run Testing — 3-6-12 or 400/800/3200

Swim Testing — 200 / 400 / 800

Three time-trial efforts (200 m, 400 m, 800 m all-out) give us Critical Swim Speed (CSS) and a basis for swim training pace bands.

How To Execute A Test

1. Warm up properly. 15–20 minutes building from easy to a few short pickups. Don't go in cold.
2. Pace the first half conservatively. The biggest mistake in maximal testing is going out too hard. Start at what feels controlled-but-firm; push the final third.
3. Go to the well. The last 60 seconds should feel like you're racing for your life. If you finished comfortably, the data is suspect.
4. Recover fully between efforts. Easy spin / easy jog for at least 8–10 minutes.
5. Repeat every 8–12 weeks through a full-distance build. Fitness changes meaningfully across 6–10 months. Zones should change with it.

No Power Meter or GPS?

The same protocols give you HR zones directly. HR + RPE alone is enough to race a great full distance — and many of our athletes do exactly that.

The Sustainable Aerobic Range

Your sustainable aerobic range is the band of effort where you can hold steady output without accumulating excess fatigue — the metabolic "all-day" zone. It's the most important physiological territory in long-course triathlon, and it's where the full-distance race actually lives.

What It Is, Physiologically

Below this range, you're working so easily that you're not stressing the aerobic system enough to drive adaptation. Above it, you're producing lactate faster than you can clear it — fatigue accumulates, fuel burns faster, and the clock is ticking on how long you can hold on. The sustainable aerobic range sits between these two boundaries: roughly from LT1 at the bottom up to just below CS/CP at the top.

For the full distance, your race lives at the lower edge of this band, not the upper. That's the difference from 70.3 racing. The full-distance athlete who races at the top of their sustainable range for 70.3 races at the bottom of it for the full.

The Four Tiers Of Athlete Readiness

Where you race within the sustainable aerobic range depends on your training age, fueling capacity, durability, and recovery history. We sort athletes into four tiers:

"The 140.6 doesn't reward your best workout. It rewards your most repeatable hour, hour after hour after hour."

State Management & The Daily Check-In

Training stress is half the equation. Your state — what your body and life bring to the session — is the other half. In a 10-month full-distance build, state management is what separates the athletes who arrive at the start line healthy from the ones who fall apart between weeks 14 and 22. We manage state across four pillars.

The Daily Check-In

Before every key session, run a traffic-light scan across: sleep duration and quality, resting HR vs baseline, HRV, mood, life stress, soreness, GI status, hydration status. Count the flags. The count tells you what to do.

In a 12+ month full-distance build, this 30-second check is what protects you from the burnout, illness, and overuse injuries that derail most athletes between weeks 14 and 22. It costs nothing. It saves seasons.

The Workout Toolkit — Three Sports

Inside a properly built full-distance program, your coach uses a library of session types across all three sports. Each one trains a specific quality. Sequencing them across three disciplines, strength, life, and recovery is the entire job of coaching. This chapter is education, not a prescription — it gives you the vocabulary so the plan we write makes sense.

Easy Aerobic Swim

Conversational pace, technical focus. The bulk of weekly swim time. Builds capillarization in the swimming muscles, refines stroke mechanics, and develops the relaxed long-stroke style that survives an open-water race start.

CSS Sets — Threshold Intervals

Sets at Critical Swim Speed: typical formats include 8×100, 5×200, 3×400 at CSS pace with short rest. The defining quality session for triathletes. Lifts CSS itself, which is the ceiling that race-pace swimming sits well below.

Open-Water Skills

Sighting drills, drafting practice, mass-start simulation, wetsuit swims. The pool is for fitness; open water is for race-day skill. Both matter.

Race-Specific Aerobic Swims

Continuous swims approaching race distance (2,000–3,800 m) at controlled effort. Builds the durability and the mental composure to swim 2.4 miles in chaos.

Long Aerobic Rides

Z1 to lower Z2 endurance, 3–6+ hours. The foundation of the bike split. Build duration before intensity — you can't fake aerobic time on the bike. The longest ride of your full-distance build typically reaches 5–6 hours, with race-pace segments embedded.

Tempo / Sweet-Spot Work

Z2 to lower threshold (roughly 83–94% CP) in sustained intervals — typical sessions: 3×20 min, 2×30 min, or 1×60 min at sweet spot. Builds the aerobic ceiling and the ability to sustain higher percentages of CP for longer.

Threshold (Z3) Intervals

Sustained efforts at or just below CP — typically 4×10 min, 3×15 min, or 2×20 min. Used in measured doses, mostly earlier in the build. Lifts CP itself.

Race-Pace Simulations

Long rides with extended segments (60–120 min) at 72–83% CP. Teaches what "all day" actually feels like, rehearses fueling at race intensity, and exposes pacing weaknesses while there's still time to fix them.

Brick Rides

Bike-to-run transition trained specifically. Long rides (3–5 hours) followed by 20–60 minute runs at race effort. The cornerstone of full-distance preparation — there is no substitute for teaching your body to run after a long ride.

Easy Aerobic Running

Z1, conversational. Builds capillaries, mitochondria, tendon resilience, and the durability to absorb a marathon on tired legs. The dominant category of run training in a full-distance build.

Zone 2 Sustained Running

Continuous Z2 work, 30–75 minutes. The engine room of run fitness. At ANC we don't call this "tempo." It's Zone 2. This is where the aerobic ceiling for running gets built.

The Long Run

Builds durability and tendon resilience. The cornerstone of run preparation. Most full-distance athletes peak their long run at 2:00–2:30 — going much longer typically costs more in recovery than it builds in fitness.

Run-Off-The-Bike Sessions

Even short runs (10–30 minutes) immediately after a bike train the neuromuscular handoff. Non-negotiable for the full distance. Done weekly in the build phase.

Threshold & VO₂ Touch Work

Used sparingly — it raises the ceiling so race pace becomes metabolically cheaper. Most full-distance athletes do less of this than they think they need.

Short Uphill Power Efforts & Pickups

10–30 second hill repeats and 15–20 second strides. Builds strength, mechanics, and neuromuscular recruitment without joint cost. Should be in your week year-round.

Strength For Full-Distance Athletes

Strength training isn't optional for the full distance — it's how your body tolerates 10+ hours of repeated load without breaking down. The right strength work makes tendons, hips, glutes, and core ready for the bike-to-run handoff, the cumulative impact of the marathon, and the final hours when form starts to leak. It's also the cheapest performance gain in endurance sport.

What Strength Does For A Full-Distance Athlete

• Improves economy across all three sports. Same output, lower metabolic cost. Multiple studies show heavy resistance training improves running and cycling economy without adding body mass. That's free speed across 140.6 miles.
• Protects against overuse injuries. Calf strains, Achilles issues, plantar fasciitis, ITB syndrome, hip flexor irritation, low-back pain. These derail full-distance builds more often than any other cause. Strength training is the single most effective prevention.
• Holds your form together in the final 10K. When glutes, core, and hip stabilizers fatigue, your running mechanics collapse — and the cost shows up in pace, in injuries, and in misery. Strength-trained tissue holds form longer.
• Bridges the bike-to-run transition. Strong glutes and core stabilize the run after 5+ hours in aero position. Without that base, the first 2 miles of the marathon are a mechanical disaster.
• Maintains muscle and bone density as we age. Endurance training alone doesn't preserve muscle mass or bone density past 40. Strength training does. The athletes who race well in their 40s, 50s, and 60s are the ones who lifted.

How To Think About The Dose

Two short, focused sessions per week is enough for most full-distance athletes — 30–45 minutes each. Strength sessions sit on hard-bike or hard-run days when possible, not on easy or long days, so easy days stay easy. Load builds through base, holds through the build, and pulls back during peak weeks and taper. We don't drop strength training in race build — we taper it.

What Strength Looks Like For Triathletes

You don't need to bodybuild. You need to lift with intent, focus on compound movements, and emphasize what's relevant to swim-bike-run: hip hinge (deadlift variations, RDLs), squat patterns, single-leg stability (split squats, step-ups, single-leg deadlifts), posterior chain (glute bridges, hip thrusts), core anti-rotation and anti-extension work (planks, dead bugs, Pallof presses), and accessory work for the feet, ankles, and shoulders.

Heavier and more focused on max strength in the base phase. Lighter and more maintenance-focused as you approach race day.

Fueling & Hydration — The Decider

You can be the fittest athlete in your age group and still finish in tears at midnight because you under-fueled on the bike. Fueling is not a supporting cast member in 140.6 — it's the leading role. The gut decides the back half of your race.

The Math Of A Full Distance

A full-distance race takes 8–17 hours for most athletes. Over that time, you'll burn somewhere between 6,000 and 12,000 calories depending on size and intensity. You cannot replace all of that on the course — your gut can absorb only so much per hour — but you must replace enough to keep glycogen from bonking and electrolytes from crashing. The gap between intake and burn is real, finite, and survivable only if you fuel aggressively and consistently from the start.

The Four Iron Rules Of Full-Distance Fueling

1. Start early. First sip and first calorie within 10–15 minutes of mounting the bike. Do not wait until you're thirsty. By the time you feel thirst, you're already in deficit.
2. Stay ahead. You can never catch up. Fueling is paid forward, not back. The gel you skip at hour two is the cramp you get at hour seven.
3. Over-pacing = GI shutdown. The gut cannot absorb at high heart rates. Pacing protects fueling. If you go too hard early, your gut will reject everything you give it — and now you have two problems.
4. Practice everything. Race day is not the day for a new gel, new bar, new sodium tab, or new sports drink. Your gut is trainable — but only through deliberate practice in your long sessions over 8–12 weeks.

Bike Fueling Targets — Per Hour

Run Fueling Targets — Per Hour

The Bike Is Your Fueling Window

This is the single most important fueling concept in full-distance racing: the bike is where you load the tank for the marathon. You can ingest 90–120 g of carbs per hour comfortably on the bike — the aero position is more forgiving on the gut than the bouncing of the run, and you have your bottles and nutrition right there. Once you start the marathon, your absorption capacity drops, your appetite often disappears, and aid stations are spread out. If you arrive at T2 under-fueled, you will not catch up on the run. Period.

Body Size & Carb Absorption

Body size is not the major driver of how much carbohydrate you can take in. Gut absorption is. A 140-lb athlete and a 200-lb athlete have roughly the same gut transport limits. Training the gut — practicing 90, 100, 110 g/hr in long rides over 8–12 weeks — is what allows the upper end of the range. The gut is a trainable organ. Treat it like one.

Pre-Race Carb Loading

In the final 2–3 days, carbohydrate intake climbs to roughly 8–12 g per kg body weight per day, with most carbs simple and easy on the gut. Reduce fiber. Reduce fat. This is not a normal eating week — it's a fueling protocol. Hydrate generously with added electrolytes. Expect a weight bump of 2–4 pounds from glycogen + water storage — that's a good sign, not a bad one.

Race Morning

Familiar breakfast 3 hours before swim start. ~1–2 g of carb per kg body weight (so 100–200 g for most athletes). Low fat, low fiber, nothing new. Common choices: white toast with jam and honey, oatmeal with banana and honey, a bagel with peanut butter and jelly, a sports drink with a banana. Sip a sports drink and water through the morning. Final small carb top-up 20–30 minutes before swim start if practiced.

Recovery & Sleep

Adaptation happens between workouts, not in them. In a full-distance build that lasts 8–12 months, recovery isn't a phase you visit — it's a discipline you live in. The workout is the stimulus. The adaptation happens in the hours and days after, and the foundation of that adaptation is sleep.

Sleep Is The First Lever

Eight hours minimum. More during peak weeks. Athletes averaging under 8 hours carry meaningfully higher injury and illness risk — and full-distance builds are long enough that any meaningful illness costs you weeks. If only one thing in your life gets protected during a 140.6 build, make it sleep.

Sleep is where growth hormone is released, where glycogen is restocked, where neural pathways are consolidated, where immune function is restored, where mood is regulated, where cardiac tissue repairs. There is no supplement, no gadget, no recovery modality that comes close to the impact of consistent, sufficient sleep.

Practical levers: consistent bedtime and wake time (even on weekends), cool/dark/quiet room, no screens 60 minutes before bed, caffeine cutoff by early afternoon, alcohol minimized (it destroys sleep architecture even if it helps you fall asleep).

Nutrition As Recovery

Post-workout fueling within 30–60 minutes — particularly after long or hard sessions — accelerates glycogen restoration and tissue repair. Aim for a mix of carbs (1 g/kg body weight) and protein (20–30 g) shortly after key sessions. Day-to-day, eat enough. Under-fueling is the silent killer of endurance progress and the number-one cause of stalled adaptation in full-distance athletes. RED-S (relative energy deficiency in sport) is real, common, and especially prevalent in athletes carrying high training volume. Eat like an athlete who is training for the full distance — because you are.

Active Recovery, Not Passive Collapse

Easy days truly easy. Walking. Mobility. Easy spin. A short easy swim. Recovery work that the body experiences as recovery — not as another moderate-effort session in disguise. The most common mistake in full-distance training is turning easy days into moderate days. Moderate is the enemy of both real easy and real hard.

Stress Regulation

Your body cannot distinguish between training stress, work stress, family stress, and emotional stress. They all draw from the same recovery budget. The athlete who trains 18 hours a week but also has a high-stress job, kids, and poor sleep is carrying the equivalent stress load of a pro training 30 hours/week. Manage what you can — and let the training adapt accordingly.

The Metrics That Actually Matter

Resting HR trending up. HRV trending down. Mood flat. Soreness lingering. Sleep poor. Libido low. GI off. These are your most reliable signals, far more than any watch number. Track them simply. Tell your coach. Adjust before adjustment becomes an injury or illness.

Recovery Modalities

Massage, foam rolling, compression boots, ice baths, sauna, contrast showers — all have some evidence behind them, none replace sleep and nutrition. Use what feels good and is sustainable. Don't chase the latest gadget. Sleep is free and more effective than any of them.

Race Week

Race week is not the week you build fitness. It's the week you protect it, prepare logistics, and get to the line healthy and calm. The mistakes in race week are almost always overdoing — overtraining, oversleeping in the wrong direction, overplanning, eating something new, overcrowding the day before with expo time. Less is more, in almost every direction except preparation.

Know Your Course — Really Know It

Swim Course

• Map the course shape: one loop, two loops, point-to-point, in-and-out?
• Locate the buoys and which color marks turns vs. lane markers.
• Identify the sun direction at swim start — you may be sighting into glare.
• Note the current, tide, or chop pattern if it's salt water, river, or large lake.
• If allowed, swim a portion of the course Friday or Saturday morning.
• Know the swim exit: ramp? carpet? beach? steep? How will you stand up?

Bike Course

• Pull the elevation profile. Identify the major climbs — where they sit in the ride (mile 25? mile 85?) matters more than how big they are.
• Map the technical sections: descents, sharp turns, surface changes, railroad crossings.
• Locate aid stations. Know exactly what's served — which sports drink, which gel, which bars. Whatever they serve, you should have practiced with it at least once.
• Know special-needs station location and rules.
• Identify wind exposure: where will you fight a headwind, where will you get a tailwind, where will it shift?
• If possible, drive the most demanding 20–30 mile section.
• Plan your fueling against the course — when to eat before climbs (15–20 minutes before), when to drink before exposed sections.

Run Course

• Loops or point-to-point? Loop courses let you stash gear, see family at predictable points, and break the marathon into mental chunks.
• Map the hills — especially after mile 16, when even small rises feel big.
• Sun and shade exposure across the day. Plan cooling strategy around exposed sections.
• Aid station spacing and contents. Know what they offer and what you'll grab where.
• Locate the finish chute. Know what the last 400m looks like — it'll be the photo you have on your wall.

Aid Station Strategy

On the bike, full-distance courses typically have aid stations every 10–15 miles. Know what they offer, where they are, what you'll grab from each, and what you'll carry from your own supply. Most athletes use course nutrition for fluids and personal supply for carbs — but if you're using course nutrition for everything, train with the exact brand and flavors in your long rides.

On the run, aid stations are typically every mile. Plan to hit every single one. Even in the first 3 miles. Even if you don't feel you need it. The cost of skipping an aid station early is paid for at mile 20.

Weather Contingency

Check the forecast Wednesday through Saturday morning. Build three plans: cool/ideal, warm (above 75°F), and hot (above 85°F). In heat: bike power targets soften by 3–5%, run pace softens 10–25 seconds per mile, sodium intake goes up 25–50%, cooling becomes its own job at every aid station. In cold (below 50°F): plan layers, plan how to peel them, plan how you'll fuel when your hands get numb on the bike.

Wind is its own contingency. On windy courses, abandon any time goal and race effort. Speed becomes meaningless in 20+ mph winds.

Travel & Logistics

• Arrive at least 3–4 days early for domestic travel. 5+ days for international or multi-time-zone trips.
• Bike check-in is its own logistical race. Practice unpacking and assembling before you travel. Pack a basic tool kit and spares.
• Walk the expo, don't camp at it. Standing for hours costs race-day legs. One short visit is enough.
• Drive the most demanding sections of the bike course and the final miles of the run course if possible.
• Pre-pack T1 and T2 bags Friday. Recheck Saturday morning. Lay out race-morning gear the night before.
• Athlete briefing: attend or watch online. Know the rules for your race.

Sleep Strategy

Night before is rarely your best sleep — adrenaline is high, alarm is early, brain won't shut off. Thursday and Friday nights are the ones that matter most. Protect them. If you sleep poorly Saturday night, it does not meaningfully impact race-day performance — but it impacts your mood, so plan to be okay with a bad night.

Shakeout Sessions

Each sport gets a brief touch in race week. 20-minute easy bike with 2–3 short pickups. 15-minute easy run with 4 strides. 10–15 minute easy swim with a few build efforts. Keep the engine warm without taxing it. The day before the race: very short, very easy, very brief. Don't try to find fitness — there's nothing to find.

Kit & Bag Layout

Everything laid out before bag drop. Race day will give you no time to think. Practice the routine: morning clothes → swim start → T1 bag (bike gear) → bike → special-needs bag → T2 bag (run gear) → run → special-needs run bag → finish line bag. Walk through it twice. Photograph each bag's contents so you have a reference if anything goes missing.

Mental Rehearsal

Three times during race week, close your eyes and run the race: calm swim start, controlled first 30 miles of the bike, disciplined middle 50, calm last 30, easy run start, working mid-marathon, fighting the final 10K, finishing tall. Pre-living the hard parts costs nothing and pays a lot. Visualize specifically the moments you're most afraid of — and see yourself responding well.

"Race week isn't training week. It's preparation week. The work is done. Now we get it to the line."