Marathon, ultra, triathlon, long ride
Know what to eat at mile 18.
The free Precision Fuel planner gives you hourly numbers. Race Fuel Planner adds the clock: what to take, how much, and whether it comes from your pocket or an aid station. The preview is free. $7 unlocks one plan. $19 unlocks every plan after it.
$7
this event, unlocked. $19 lifetime.
- Hourly targets
- Free
- First hour
- Free
- Rest of the card
- After checkout
Three steps, then you can tape it to a bottle
01
The day you are racing
Sport, distance or time, weight, sweat, gut, caffeine, and the foods you will actually carry.
02
Numbers from the math
Carbs, fluid, and sodium per hour are calculated. The model only writes a short tip.
03
Pay once if you want the card
The first hour is open. Checkout unlocks the rest, the shopping list, and the print view.
Free hourly numbers, paid schedule
If you only want grams per hour, use the free planner. If you want a list you can follow without doing the arithmetic at an aid station, that is the paid part.
| Precision Fuel planner | Race Fuel Planner | |
|---|---|---|
| Price | Free planner | $7 once, or $19 lifetime |
| Hourly carbs, fluid, sodium | Yes | Yes, in the free preview |
| Timed take-this table | A step-by-step guide | Every 15 or 30 minutes, with place on course |
| Carry vs aid stations | Not the point of the tool | Marked when you enter spacing |
| Shopping list | Suggests their own bottles and gels | Counts for Maurten, SiS, GU, Precision Fuel, or generic |
| Carb-load and breakfast | Not what the planner is for | Race-week amounts from body weight |
| Take it with you | On their site, plus a free call | Printable fuel card and CSV |
| Sweat sodium | Their sweat test is the accurate measure | An estimate unless you already know your rate |
What the plan contains
- Carbohydrate, fluid, and sodium per hour, with a note when the carb target needs gut training.
- A timeline every 15 or 30 minutes: product, amount, and course position.
- What to carry and what lines up with the aid spacing you entered.
- After you pay: shopping counts, race-week carb-load, breakfast, CSV, and a fuel card you can print.
Example hour · not your plan
- 0:301 gel · carry
- 1:001 gel + bottle · aid
- 1:301 gel · carry
- 2:001 gel + bottle · carry
Questions
See the hourly targets first.
You will see carbs, fluid, and sodium per hour, plus the first hour of the timeline. The rest stays locked until you pay.
Start with your eventRace Fuel Planner is not medical advice and is not a sweat test. The numbers are estimates from what you typed. Practice any new amount in training. Stop for chest pain, confusion, or swelling. Drinking far beyond thirst for many hours can dilute blood sodium. If you have a health condition, talk with a physician before you follow this.