“I do think that first hour of racing is quite tough, because… I’m racing, and so you forget about things.”
That’s from a gravel racer I work with, and some version of it comes up with almost every rider I talk to about race day. Another athlete said they didn’t have their first gel until an hour and a half in, “because I was breathing quite hard climbing.”
The first hour is where a lot of race fueling plans quietly fall apart. Nothing dramatic happens. You just don’t eat, and by the time you notice, you’re already behind.
Why gravel makes the first hour harder
Gravel starts are chaos. You’ve got a packed field, a fast rollout, and often a climb or a rough section early on where you’re breathing too hard to eat and don’t want to take a hand off the bars. Eating is the last thing on your mind.
Here’s the math that makes that a problem. A typical gel has around 30 grams of carbohydrate, and 30 grams is only going to get you to about minute 30. If the first climb takes 90 minutes, that one gel isn’t going to carry you up it.
So the goal isn’t to force yourself to eat during the hardest, most hectic part of the day. It’s to show up to the start line already covered.
Stop eating, but don’t stop fueling
There’s a gap between your last real meal and the gun, and that’s where a lot of riders go quiet. Finish your pre-race meal, then stop eating, but have something on the start line.
Timing matters here. Anything you take in within 15 to 20 minutes of the start, even right at the gun, is going to be the most useful, because your muscles can put it to work almost right away. That’s carbohydrate you don’t have to find a free hand for once the race is on.
The start bottle
My favorite tool for this is what I call the start bottle. It’s a concentrated bottle of carbohydrate, sodium and water that you finish right before the race. It really primes the system and gets it going.
Here’s the recipe I use with athletes:
- About 16 oz (500 ml) of fluid
- 60 to 80 grams of carbohydrate
- About 1,500 mg of sodium
That’s a lot more carbohydrate than a single gel. Instead of a 30-gram gel that runs out at minute 30, you’ve got a bottle that carries you well into the race while things settle down.
The sodium is doing important work too. A bolus of sodium at that concentration helps increase your plasma blood volume, which is exactly what you need heading into a hard, high-intensity start. Sodium is what helps you hold on to that fluid instead of just passing it through.
“Won’t that just make me pee?”
This is the first thing almost everyone asks. One athlete put it perfectly: “I peed so many times before the start, and I could pee again in the middle of this race.” Nobody wants to spend the first hour of a race looking for a bush.
Most riders deal with this by drinking early, so there’s time to pee it out before the start. The timing that actually works is the opposite. I’ll have athletes finish their start bottle about 10 minutes before the race, so there’s no time for it to be processed and peed out. Drinking it too far ahead lets it move through your system, and your body decides it needs to get rid of it. Drinking it 5 to 10 minutes out means your body is still putting it to use when the gun goes off.
The amount of sodium matters too. When a bottle is really high in sodium, your body holds on to that water, at least for a while. When it’s a lot of fluid with only a little sodium, your body says, “Too much fluid, need to pee it out.” That’s why the start bottle is concentrated on purpose. The goal is to take it in without needing to pee.
Hot start vs. cool start
Not every start line needs the same thing. It really comes down to finding the right mix of fluid, carbs and salt for the conditions.
- Hot day: This is where the start bottle shines. Pre-hydrate more intentionally in the days before, and plan on the start bottle. You’re going to need the fluid and the sodium, not just the carbs.
- Cooler day: A gel can do the job here. It’s more concentrated, and you don’t necessarily need as much fluid. Just size it up: instead of a 30-gram gel at the start, go for something closer to 50 grams so it actually covers you for more than the first half hour.
Settling into the rhythm
A start bottle or a start-line gel takes care of your fueling for the first 20 or 30 minutes, so you can settle in and get through the chaos without thinking about food. That’s the whole point. Once the pack spreads out and your breathing comes down, your regular fueling takes over.
A few things help that handoff go smoothly:
- Set a reminder. Put a fueling alert on your bike computer or watch. Some can be set so they won’t stop beeping until you actually acknowledge them, which is exactly what you want when race brain kicks in.
- Plan around the course. If you know the first big climb or a rough descent is coming, fuel before it, not during it. It’s tough to take sips when you’re descending.
- Keep going from there. From the first feed on, it’s about staying steady hour after hour. If you’re not sure what that number should be for you, How Many Carbs Per Hour Do You Actually Need? walks through it.
- Practice the start bottle in training. Try it before a hard group ride or a tempo day first, so race morning isn’t the first time your stomach sees it.
The bottom line
The first hour doesn’t have to be a fueling black hole. Stop eating at your pre-race meal, but don’t stop fueling. Finish a start bottle about 10 minutes before the gun, let it carry you through the hectic part, and start your regular feeds once things settle down.
If you want a plan built around a specific race, including the start line, the first climb and every aid station after that, that’s exactly what a Race Ready Session is for. If you’d rather work through it on your own, the Gravel Performance Nutrition Course is a great place to start.
