What happened during the race?
Tap every symptom you experienced
⚡ Energy & Pace
💪 Muscle & Body
🧠 Cognitive
🩺 GI / Stomach
Select your symptoms
Tap the pills on the left to diagnose the bonk
Use this in practice
- Run this analyzer within 24 hours of the race — details start fading fast.
- If the same diagnosis appears 2+ races in a row, it's a systemic fueling flaw — not bad luck.
- Share the correction plan with the athlete's parents so they help fix the pre-race meal.
Get your results emailed + 3 follow-up resources
bonk prevention
Practical examples
Race-day and long-session visuals that make the bonk problem concrete: carbs, fluids, and timing.

PBJ + milk recovery
Quick carbs plus protein when dinner is still far away.
RecoveryPractical

Chocolate milk + banana recovery
A simple post-session option that athletes will actually use.
Post-workoutSimple

Sports drink and gel
A clean “don’t wait too long” example for endurance sessions and long races.
FuelingTiming