Trail running fuel planner
Most trail runners DNF from fueling mistakes. The training was never the problem.
Aerostride builds your per-aid-station fueling plan before race day: exact carbs, hydration, and electrolytes at every stop. Calculated from your course, your weight, and your conditions.
| Aid station | Mile | Carbs/hr | Hydration | Electrolytes |
|---|---|---|---|---|
| Start | 0 | 60g | 500ml | 300mg |
| Ridgeline AS | 8.2 | 75g | 650ml | 450mg |
| Summit Aid | 16.7 | 90g | 750ml | 500mg |
| Valley Drop | 24.1 | 70g | 600ml | 400mg |
| Finish | 31.0 | 45g | 400ml | 300mg |
60-90g
carbs per hour target most runners miss on race day
50K→100K
trail distances where fueling decides your finish
€5/mo
less than a gel pack, per month
The only race planner with a fueling engine
Every other planner leaves a blank notes field at each aid station. Aerostride fills it.
AI per-aid-station fueling plan
Import your GPX, add your body weight and race-day conditions. Aerostride calculates your carb target, hydration volume, and electrolyte dose for every aid station on your course. Adjusted for elevation gain, expected heat, and leg-by-leg effort.
Not a static 60-90g/hr suggestion. Your course, your body, your plan.
Course-aware planning
Import your GPX or link Strava. The planner reads elevation, aid station spacing, and expected conditions to adjust every target along the route.
Exportable for your crew
Share your fueling plan as a PDF or link. Your pacers know exactly what to hand you at every station, without guessing.
Fueling gap
UltraPacer tells you when you arrive. Aerostride tells you what to eat.
UltraPacer is the strongest pacing tool on the market. It has no fueling logic at all. The comparison below is on fueling only.
UltraPacer data: web interface reviewed July 2026. A two-year-old feature request for a calorie field has received no developer response.
0 competitors
with a per-aid-station fueling engine
Free
pacing and planning tier
€48/year
annual plan, two months free
Get your fueling plan before the starting gun.
Import your course. Aerostride does the fueling math. Free to start.