Phoenix Running - Grafham
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Phoenix Running - Cambridgeshire Butterfly Run
The Butterfly Run takes place on 03 May 2026 at Grafham Water in Cambridgeshire. It is a timed event organised around a single 5.3 km, 3.28 mile out and back lap. Participants may complete as many laps as they choose within a six hour time limit. The minimum distance recorded is one lap, 3.28 miles.
Distances available include:
- 5 km
- 10 km
- Half marathon
- Marathon
- Ultra distance
The course follows tarmac cycle paths with a small section of gravel path. The overall route has minimal elevation gain, making it relatively flat. The event uses a flexible rock up and run start within a one hour start window rather than fixed mass starts.
Entry categories list different fees for affiliated and unaffiliated runners. Distance restrictions apply to participants aged 20 or under in line with UK Athletics rules. All attended and virtual participants receive a physical giveaway medal or memento described as a bespoke finisher's medal.
This description summarises the key format, distances, surface and time limit information for the Butterfly Run at Grafham Water. Visit the organization's website for the most recent information.
