London Aquathlon October 2026

A swim-run aquathlon with a 400m indoor pool swim at the London Aquatics Centre followed by a 5km run around South Park in Queen Elizabeth Olympic Park.

RunThrough's London Aquathlon on Sunday 25 October 2026 combines a 400m pool swim (four lengths) in the London Aquatics Centre with a measured 5km run around South Park, taking in views of the London Stadium. The event village opens at 07:00, with the race starting at 08:30 and Wave 1 at 09:00. Entries are open to participants aged 15 and over, and entry includes a themed medal, chip-timed results, free race photos and post-race goodies.