You’ve got a race bib. A date marked on your calendar. Maybe it’s your first 10K, your first half marathon, your first cycling sportive, or your first triathlon. You’ve trained for weeks. And yet, one worry keeps coming back: “What if I fall apart on race day?”
That’s the number one fear among amateur athletes—and it’s a valid one. Every weekend, thousands of well-prepared runners and cyclists hit the wall during their race. Not because they lack fitness, but because of poor race management:
- Starting too fast.
- Not drinking enough.
- Trying a gel that’s never been tested and doesn’t sit well.
The result: the dreaded “wall,” cramps, no enjoyment, and the urge to quit.
The good news? Race management is a skill you can learn. It’s not about talent—it’s about method.
In this article, we’ll look at how to pace yourself, what to eat and drink, and how to test your strategy in training so you don’t discover on race day what doesn’t work.
Why race management is just as important as your training
A well-prepared amateur can lose 20 minutes on a marathon بسبب poor race management. A cyclist can perform 30% below their potential simply because they started too fast.
Why? Because your body has limited reserves:
- Around 400 to 500 g of glycogen available, which is roughly 2,000 kcal
- An absorption capacity of about 60 to 120 g of carbohydrates per hour
- A relatively low tolerance to dehydration: losing just 2% of your body weight in water can already mean a 20% drop in performance
Once you exceed these limits, your body shuts down—no matter how well you’ve trained over the past three months. That’s exactly where race management comes in: pacing your effort so your energy stores last, and refueling properly to replenish them at the right rate.
Pillar #1: Pacing, or the art of sticking to your race plan
The number one mistake amateur athletes make—both in running and cycling—is relying on feeling instead of following a plan defined in advance.
And it usually shows up in two ways, equally costly:
- Starting too fast, carried by adrenaline, the crowd, and the freshness of the start. You blow up halfway through and just try to survive to the finish.
- Starting too slow, out of fear of cracking. You finish feeling fresh, with regrets—and a time well below what you were capable of.
The real goal isn’t to start slow. It’s to have a target pace or power set beforehand—ambitious, yet sustainable from the first kilometer to the last. That’s what a true race strategy looks like.
How to define your target pace / power?
This target isn’t something you guess on race morning. It’s calculated based on data you already have:
- Your recent long training sessions: at what pace (or power) were you able to sustain 70–90% of the race distance without falling apart?
- A specific test: FTP or CP20 in cycling, threshold pace from a structured running workout, or a shorter preparatory race 3–4 weeks before your main goal.
- Your threshold heart rate: if you know it, you can set a precise target zone (typically 5 to 10 bpm below threshold for a half marathon or a short cycling event, slightly lower for a marathon or a long sportive).
👉 If these concepts are still unfamiliar, or if you’re not sure which data to look at in your training sessions, start by reading our article Training Data: Which Metrics Should You Track? You’ll see exactly which numbers matter (and which ones don’t) to build a reliable race target—not a random guess.
Your target should feel uncomfortable but sustainable. You should finish the race tired, not fresh. If you cross the line thinking, “I could have done more,” it means your target was set too low—not that you “paced it well.”
The real plan: set your target, hold it, finish strong
A well-managed race almost always looks like this:
- The first 20 minutes: you are exactly at your target—never above it. Adrenaline pushes you to speed up, but you check your numbers and stay disciplined.
- From one-third to two-thirds of the race: you hold steady. This is where the mental game kicks in. The pace starts to feel heavy—that’s normal and expected.
- The final third: if your strategy is well calibrated, you should be able to slightly accelerate in the last 30 minutes. Personal bests are almost always achieved with a negative split (second half faster than the first), never a positive split.
The key rule to self-regulate: At kilometer 3 of a 10K, if you think, “I could hold this for 2 hours,” speed up a bit. If you think, “I can’t hold this for 20 more minutes,” slow down now—not in 5 km.
Concretely, rely on data as well as your feelings. In running: keep an eye on your target pace on your watch, checking it every kilometer. In cycling: use power if you have a meter; otherwise, heart rate remains more reliable than perceived effort, especially on climbs and in the wind.
Concrete example: Julien, 41, is aiming for 1h50 in his first half marathon. His target pace, calculated from his long runs and a preparatory 10K, is 5’12″/km.
In practice, rely on both data and sensations
Concrete example: Julien, 41, is aiming for 1:50 in his first half marathon. His target pace, based on long runs and a preparatory 10K, is 5:12/km.
- He starts by feel at 4:55/km → blows up at 12 km, finishes in 2:05 with some walking
- He starts too cautiously at 5:25/km → finishes fresh in 1:55, with regrets
- He locks in 5:12/km and accelerates at the end → finishes in 1:49. Personal best
Same fitness in all three scenarios. Three completely different results. The difference is purely strategic.
Pillar #2: Nutrition—what you put into your engine
Race nutrition is built around three key moments.
Before the race: the day before and race morning
The day before: eat a normal meal, rich in carbohydrates (pasta, rice, potatoes), low in fat and fiber. No exotic dishes you’ve never tried before. Stay well hydrated throughout the day.
Race morning: 2 to 3 hours before the start, eat a breakfast you know well. A classic that works: oatmeal + banana + honey, or white bread + jam + coffee if you’re used to it. Drink regularly, but don’t overdo it.
During the race: your real strategy
Simple rule: once you go beyond one hour of effort, you need to take in carbohydrates.
Guidelines based on your level:
- Beginner or first long race → 30 to 60 g of carbs per hour minimum
- Intermediate, used to fueling effort → 60 to 90 g per hour
- Trained athlete, performance goal → up to 90 to 120 g per hour
Important: these amounts must be trained. Your stomach needs to adapt to absorbing this, just like your legs adapt to distance.
Never create your nutrition plan on race morning. Test everything in training—never on race day: quantities, types of products, brands (bars, gels, drinks, fruit purées, etc.)
The classic mistake: waiting until you feel hungry or low on energy. By the time you feel it, you’ve already been in deficit for 20 minutes. Too late.
Fuel in small, regular amounts, not in one big intake that bloats you and kills your legs.
After the race: don’t miss this window
Within 30 minutes post-race, take in carbohydrates + protein to kick-start recovery. Recovery drink, banana + yogurt, or simply your next meal if you’re already home.
Rehydrate generously, ideally with a bit of salt.
Pillar #3: Hydration and mindset—the two most overlooked factors in racing
L’hydratation : visez 400 à 600 ml par heure d’effort, plus s’il fait chaud. N’attendez pas Hydration: aim for 400 to 600 ml per hour of effort—more if it’s hot. Don’t wait until you feel thirsty. Drink small amounts regularly.
Add a pinch of salt or electrolyte tablets for races lasting more than 2 hours. Drinking large amounts of plain water without sodium during long efforts can lead to hyponatremia, which is worse than not drinking enough.
Mindset: a long race is 80% physical and 20% mental… except in the final 45 minutes, when it becomes 20% physical and 80% mental. Prepare for that moment. Have a phrase, a song, or a memory that helps you refocus when your mind starts to fade.
Most importantly, break your race into smaller chunks. Never think, “I still have 20 km to go.” Think, “the next aid station is in 3 km.” It changes everything.
👉 Mental strength on race day isn’t improvised—it’s built in training. If you want to go further, our article Champion Mindset: Exercises to Perform Better in Cycling and Running gives you practical tools (visualization, “non-negotiable” sessions, progressive blocks) to train your mind as seriously as your legs.
Mistakes that can ruin your race
- Trying a new product on race day: never do this. Everything you consume should have been tested in training—several times.
- Starting all-out because you feel good: already mentioned, but it’s so common it’s worth repeating.
- Ignoring the weather: at 25°C (77°F), you’ll need much more hydration than in winter. Adjust your plan accordingly.
- Underestimating bathroom logistics: it may sound trivial, but it can ruin your race. Plan for a 15-minute buffer before the start.
- Changing your strategy mid-race: if you planned 5:15/km, stick to 5:15. Not “5:15, but if the weather is nice I’ll speed up.”
How to test your race strategy in training?
Here’s what makes all the difference—and what 90% of amateurs don’t do: simulate race conditions in training.
Important point: “reproducing conditions” does NOT mean doing the full distance. Running a full marathon in training is the best way to arrive exhausted on race day and increase your injury risk. Your test session should be long enough to validate your plan, but short enough not to break you.
Duration guidelines: About 60–75% of the target distance in running, about 70–85% in cycling
In practical terms: 15–17 km for a half marathon, 28–32 km max for a marathon, 70–80 km for a short cycling sportive
During these sessions, you replicate everything exactly: breakfast, start time, fueling strategy, target pace or power, clothing and shoes. This is where you’ll discover that a gel upsets your stomach, that your pace is too ambitious—or наоборот, that you can aim a bit higher.
Ideally, plan two test sessions, spaced 2 to 3 weeks apart. The last one should be at least 3 weeks before race day, so you have enough time to recover and taper.
Kinomap: your full dress rehearsal before race day
In cycling especially, reproducing real race conditions—like a sportive or triathlon—is complicated: weather, traffic, stoplights, exact course profile…
With Kinomap, you can find a route that matches your target race (profile, distance, elevation), or even ride the exact course under ideal conditions. You can test your pacing, nutrition, and positioning without any external disruptions.
You can also structure workouts at controlled power to embed your target pace into your legs. On race day, you won’t have to think—your body will already know what to do.
Conclusion
Managing your race well isn’t about fitness, talent, or luck. It’s about strategy—tested, repeated, and mastered long before the start line.
Set an ambitious but sustainable target pace, and lock it in from the very first kilometer. Eat early and regularly. Drink before you feel thirsty. Test everything in training—nothing on race day. And break your race into smaller goals to stay mentally focused all the way to the finish.
On race day, you won’t have time to think. Everything will already be decided by the choices you made during your weeks of preparation.
A great race isn’t won at the start line. It’s also won beforehand—in the details you’ve tested.
Par Fanny Marre
Entraîneur en cyclisme, running et triathlon
fannymarre99@gmail.com
See previous coaching articles:
IMPROVE YOUR CYCLING EXPLOSIVENESS: 4 EFFECTIVE WORKOUTS
TRAINING DATA: WICH METRICS SHOULD YOU TRACK?
LACTATE THRESHOLD IN RUNNING: HOW TO TRAIN IT TO RUN FASTER FOR LONGER