Most runners know what to eat on race morning. Fewer have a complete, structured routine for the two to three hours before the gun, one that covers not just nutrition but nervous system preparation, physical activation, and the cellular priming that determines how your energy systems perform in the first kilometre and the last.
Here is a science-backed race morning routine built for runners and triathletes, from the alarm going off to the moment you cross the start line.
Why your race morning routine matters as much as your final long run
The last three hours before a race are the final opportunity to influence your physiological state before the effort begins. Decisions made in this window, what you eat, when you eat it, how you warm up, and how you manage your nervous system, directly affect your opening kilometres.
Get it wrong and you spend the first five kilometres compensating: blood glucose unstable, gut unsettled, neuromuscular system under-activated. Get it right and the opening kilometres feel controlled, your pacing is accurate, and the energy that took months of training to build is accessible from the first metre.
Research on pre-race preparation shows that a structured routine improves both performance and perceived effort at race onset. Athletes who follow a consistent, well-designed pre-race protocol report less perceived difficulty in the early kilometres than those who approach race morning without a plan.
T minus 3 hours: breakfast and hydration
Wake three hours before the start. Eat within 30 minutes of waking to break the overnight fast and begin stabilising blood glucose. Target 1.5 to 2g of carbohydrate per kilogram of body weight for a marathon or long event; 1g per kilogram for a 10K or half marathon.
Choose foods you have eaten before long runs: porridge with water, white toast with honey or jam, white rice with a small amount of protein, or a combination of simple carbohydrates you know your gut tolerates. Nothing new. Nothing experimental. The body under race-morning stress is not a forgiving digestive environment.
Drink 500 to 750ml of water with breakfast. If the weather is warm or you sweat heavily, add an electrolyte tablet or sports drink. Avoid alcohol the night before and diuretics in the morning. Coffee is fine if you're a habitual drinker; it also contributes to pre-race caffeine strategy (more on this below).
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T minus 90 minutes: preparation and mindset
This is the window for race logistics and mental preparation. Sort your kit, pin your number, check your timing chip. Visualise the race: the opening kilometre, the point where it gets hard, the finish. Elite athletes use structured pre-race routines not for superstition but because having a known, practised sequence reduces decision-making load and keeps the nervous system in a parasympathetic state rather than a spiked, adrenalin-flooded one.
Aim to be physically calm and mentally engaged but not anxious. Controlled arousal, not panic. The athletes who sprint from the gun because they're nervous almost always pay for it in the back half.
T minus 60 minutes: the cellular priming window
Sixty minutes before the start is the Pre-Activity Shot window. This is the point at which acute cellular preparation has the highest impact on the opening kilometres of the race.
Your mitochondria produce the vast majority of ATP your muscles will spend during the race. At the start of sustained high-intensity effort, the rate at which your mitochondria can ramp up ATP production determines how well your pace maps to your effort from kilometre one. Athletes who are well-prepared cellularly sustain their race pace from the first minute. Those who aren't spend the opening kilometres in a temporary energy deficit while their mitochondria come online.
Research from Gherardi et al. (2024) showed that oleuropein directly activates mitochondrial calcium uptake, the mechanism that governs how rapidly cells can elevate ATP output at the onset of sustained effort. The Pre-Activity Shot delivers this 60 minutes before the start, alongside your caffeine intake (3 to 6mg per kilogram, 45 to 60 minutes before the gun) and, if needed, a small final carbohydrate top-up.
For the foundational guide on why this preparation window matters so much, see the full OLEUS article on why you feel flat on race morning.
T minus 30 minutes: the warm-up
A proper warm-up is one of the most underused tools in recreational racing. Research on neuromuscular activation before endurance events shows that a targeted warm-up reduces the oxygen deficit in the early minutes of a race and improves running economy from the opening kilometre.
The warm-up for a marathon or half marathon doesn't need to be long: five to ten minutes of easy jogging, followed by dynamic movements (leg swings, hip circles, walking lunges, high knees) and four to six short strides at race pace or faster. This activates your fast-twitch recruitment patterns, raises core temperature, and primes the neuromuscular pathways you'll use from the gun.
For shorter races (5K, 10K) where you'll start at a higher percentage of VO2 max, a longer warm-up of 15 to 20 minutes is justified. The higher the starting intensity, the more important the warm-up.
T minus 10 minutes: the final window
Some athletes benefit from a small gel or sports chew in the 10 to 15 minutes before the start, providing a blood glucose boost that's absorbed quickly enough to matter in the opening kilometres without triggering an insulin response. For races longer than 90 minutes, this is worth experimenting with in training. For shorter races, it's less important if you've eaten correctly two to three hours before.
Hydrate one final time: 100 to 200ml of water. Take your position at the start. Control your breathing. The training has been done. The cellular preparation has been made. The plan is in place.
Your complete race morning protocol at a glance
Three hours before: wake, eat (1.5 to 2g carbohydrate per kilogram), hydrate (500 to 750ml water). Ninety minutes before: logistics, kit, mental preparation. Sixty minutes before: Pre-Activity Shot, caffeine (3 to 6mg per kilogram). Thirty minutes before: warm-up (easy jog, dynamic drills, strides). Ten to 15 minutes before: optional small gel or chew, final hydration. Gun.
The consistency of the routine is part of its value. Practise it on your longest training runs before race day so every element is familiar when it counts.
Your 60-minute pre-race window, sorted
The Pre-Activity Shot is taken 60 minutes before the start. It primes your mitochondria so your cellular energy system is ready from kilometre one, not kilometre five.
Shop the Pre-Activity Shot-
Sources
Enoka, R.M., Duchateau, J. (2016). Translating fatigue to human performance. Medicine and Science in Sports and Exercise, 48(11), 2228-2238.
Gherardi, G., et al. (2024). Mitochondrial calcium uptake declines during aging and is directly activated by oleuropein to boost energy metabolism and skeletal muscle performance. Cell Metabolism.
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