Athlete Guide
See the 2025 Athlete Guide to provide you with helpful information as you plan. The 2026 athlete guide will be posted summer of 2026. As the race gets closer, the Athlete Guide will be updated frequently.
In the Athlete Guide, on the Detour Maps the orange lines are hard closures - large barricades, police/security/volunteers, directly at the race course. You cannot move or go around these; you'd be on the race course and runners would be unsafe. DO NOT DRIVE on M25 during the race times.
The yellow lines are soft closures. They let you know you're about to come up on a hard closure. You can go around them if needed.
2025 Pre-Race Information Meeting:
