COURSE PROFILE
The shape of the day
WHY PREDICT THIS RACE
- See whether your target power is realistic before the start line.
- Model wind direction and group-riding assumptions instead of using a flat average speed.
- Get a confidence range so the number stays useful when race-day conditions shift.
- Upgrade to a Race Report for segment pacing, fuelling, equipment notes, and race-week priorities.
EVENT PREDICTION FAQ
What riders usually want to know
How does the RideLondon-Surrey 100 predictor work?
It combines the saved RideLondon-Surrey 100 route profile with your FTP, body weight, bike setup, riding position, surface, wind, and drafting assumptions. The result is a deterministic finish-time estimate with a confidence range, not a guaranteed race-day time.
What data is used for RideLondon-Surrey 100?
This page uses 160 km of course distance, 511 m of elevation gain, detected climbs, and tarmac mixed assumptions. Better route files and more actual rider results will improve future confidence.
What makes the prediction more accurate?
Measured FTP, honest rider weight, realistic bike weight, known tyre/surface choice, accurate wind conditions, and a good estimate of riding position all improve the model. The course is less climb-dominated, so aerodynamics, wind direction, group riding, and steady power become bigger drivers of finish time.
What is in the premium Race Report?
The Race Report turns the free finish-time estimate into a race plan: segment pacing, climb strategy, wind notes, fuelling targets, equipment guidance, biggest time gains, biggest risks, and race-week checklists.