PB predictor
Predict your finish time on any UK course from your current form. We adjust for the course's normalised gradient (GAP factor), so a hilly course and a flat one are compared fairly.
How long will my race take on this course?
Enter a recent result and the race you are targeting. We convert your current form to a course-adjusted prediction using the same normalised gradient model (GAP factor) that powers every race page, so the estimate accounts for how hilly the target course really is.
The full course-adjusted prediction is rolling out per race. In the meantime, every race page shows the realistic finish-time distribution for that exact course.
Why a course-adjusted predictor
Generic predictors assume every course is flat. Ours uses each course’s measured gradient profile, so a target with 300 m of climb is predicted slower than a pancake-flat PB course — the difference that actually decides your time.