Race Day Fuelling Checklist That Holds Up
Race morning is rarely lost because an athlete forgot to care. It's lost because small errors stack up when the head is busy and the clock is moving. Breakfast eaten too late. Bottles left in transition. Sodium ignored until mile 18 reveals why it mattered.
A good race day fuelling checklist removes decision-making from the moments when your attention is elsewhere. It doesn't replace preparation — it's the product of preparation. Every item on it should already be familiar, tested and automatic. Race day is for executing what training built.
"Before every major race, I run through the same protocol. Not because I don't trust myself to remember, but because under race-morning stress, even experienced athletes make avoidable errors. The checklist isn't about distrust — it's about removing the mental load at the point when you need to be focused on warming up, not on whether you packed the right gels."
— Alistair Brownlee, Two-time Olympic Triathlon Champion and founder of truefuels
What a race day fuelling checklist should do
A useful checklist is not a shopping list. It's a race execution tool. It tells you what to eat, when to take it, how much fluid to carry, and what changes if the course is hot, short or long.
The principles behind it are simple. Start fed. Arrive hydrated, not sloshing. Take carbohydrate early rather than waiting for fatigue. Keep sodium aligned to sweat loss and conditions. Use only what you've practised in training.
The complete race day fuelling checklist
48 hours before
| Item | Target | Notes |
|---|---|---|
| ☐ Increase carbohydrate intake | 8–12g per kg body mass per day | Reduce fibre, keep fat moderate |
| ☐ Reduce fibre-heavy foods | Under 20g fibre per day | No large salads, beans, wholegrains |
| ☐ Maintain consistent fluid intake | Normal hydration, not excessive | Pale straw urine as marker |
| ☐ Include sodium with meals | Natural salt at meals | Especially important if travelling |
| ☐ Confirm race product kit | Count gels, electrolyte sachets, CoreCtrl | No surprises on the morning |
The night before
| Item | Target | Notes |
|---|---|---|
| ☐ Evening meal: carbohydrate-led, moderate size | Not a heroic feast | White rice, pasta, potato — familiar only |
| ☐ Final fluid intake: consistent, not forced | 400–600ml with dinner | Don't drink to excess to compensate for earlier |
| ☐ Early bedtime; prepare kit tonight | All laid out | Gels, race number, kit, nutrition belt |
Race morning (3–4 hours before start)
| Item | Target | Notes |
|---|---|---|
| ☐ Breakfast: carb-rich, low fibre, low fat | 1–3g/kg body mass | Toast, porridge, banana, sports drink |
| ☐ Fluid with breakfast | 400–600ml | Include light electrolyte if warm race |
| ☐ Final bag check | Gels counted and accessible | Know exact pocket or belt location |
| ☐ Confirm weather and adjust sodium plan | Hot day = upper sodium range | Have 40/1.0 gels ready if warm |
30–60 minutes before start
| Item | Action | Notes |
|---|---|---|
| ☐ CoreCtrl (if heat race) | 1 sachet in 500ml cold water | Take 30–60 min before. Protocol requires 3–8 days beforehand — this is final dose |
| ☐ Pre-race hydration | 200–400ml fluid with electrolytes | truefuels Active Hydration or gel |
| ☐ Final carb top-up | 1 truefuels gel 15–20 min before | Optional — only if part of tested routine |
During the race (per-hour targets)
| Condition | Carb target | Sodium target | Fluid target | Gel recommendation |
|---|---|---|---|---|
| Cool (under 15°C) | 60–80g/hr | 300–500mg/hr | 400–600ml/hr | 40/0.25 gels |
| Mild (15–20°C) | 60–90g/hr | 500–700mg/hr | 500–700ml/hr | Mix of 40/0.25 + 40/1.0 |
| Warm (>20°C) | 60–90g/hr | 700–900mg/hr | 600–800ml/hr | 40/1.0 gels + electrolyte sachet |
| Any (sprint/10K) | 30–40g | Match conditions | Match conditions | 1 gel total or none |
Timing: Take first gel 20–30 minutes into the race — before fatigue, not after. Continue every 20–30 minutes on a schedule, not reactively.
The evening before: set up the next morning
Race day starts the night before. The plate of pasta matters, but less than the 24 hours of smart carbohydrate intake that preceded it. Athletes who carb-load only in the final evening rarely achieve meaningful glycogen elevation. The window for effective loading is 36–48 hours.
Lay out all kit tonight. Count gels and verify variants. Place them where they'll be easy to grab under race-morning stress. There's nothing worse than reaching for a 40/1.0 in a hot race and finding only 40/0.25 gels because the check didn't happen.
The common error that costs races
Most race-day fuelling failures share a root cause: the plan was improvised in training and expected to hold under race pressure. A gel format that was loosely tested, a sodium level that was never verified against a warm session, a breakfast routine that worked once but wasn't repeated enough to become reliable.
The checklist works because it externalises memory. But the items on it only matter if each represents something already tested and confirmed. An unfamiliar gel at 25km, a new electrolyte sachet flavour in transition, a caffeine dose trialled for the first time on race morning — these are not risks worth taking.
Use only what you know. Write it down before race week. Execute on the day.
A note on adaptability
The checklist is a structure, not a rigid rule. If conditions change overnight — the forecast warms by 5 degrees — your sodium and fluid targets should shift upward accordingly. If you start the race and the gut feels tight from an early feed, reduce size at the next interval rather than forcing the plan.
The goal is confident execution. When the checklist does its job, fuelling becomes one less thing to think about. The race can ask its hardest questions, and your nutrition has already answered them.
