Load a GPX route to see weather for your race location.
| Name | Carbs/Serve (g) |
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👆 Configure your race and click “Run Simulation” to see results
RaceCraft simulates how terrain, climbing, and fatigue interact with your pacing strategy — then turns that into realistic splits and fuelling timing.
This takes about 60 seconds. Upload your course, tell us about your engine, and we’ll model how the race unfolds.
Upload your GPX. We’ll analyse elevation, gradients, and terrain load to understand where this race bites.
These inputs shape how fatigue compounds and how efficiently you move on different terrain.
Controls when fatigue kicks in and slows your pace — higher fitness delays onset.
Your vertical ascent speed (m/h) — determines how much uphills slow you down.
Your comfortable, sustainable pace on flat ground (Zone 2 effort) — the baseline for all pacing adjustments.
We’ll model pacing shifts, fatigue accumulation, checkpoint splits, and fuelling needs.
Your settings land directly in the Race Configuration panel so you can fine-tune checkpoints, nutrition, and terrain after the first simulation.