Impetus Triathlon returns to Dorney Lake on 13 September 2025 for its 11th year. Join us for an exciting day of racing, fundraising, and fun, all in aid of Impetus.
Registration is now open, so reserve your spot and join the challenge today!
Individual £190
Team £380
400m swim
21.2km cycle
5km run
Individual £190
Team £380
1500m swim
42.4km cycle
10km run
Individual £190
Team £380
800m swim
31.8km cycle
7.5km run
Individual £190
Team £380
5km run
31.8km cycle
5km run