Battersea Park Running Festival Marathon 2026

The Battersea Park Running Festival Marathon is an October marathon in London, run as 11 flat laps around Battersea Park. RunThrough organises it, with the marathon starting at 9:00 a.m. and capped at 400 places. The same festival also includes a half marathon, 5K, and 1K junior race, so the day is not just for marathoners. It is a straightforward road-and-park-lap race, especially suited to runners who like predictable pacing and clear distance checks. The start and finish sit on the athletics track at the Millennium Arena, with runners completing repeated loops on flat paths through the park. The half marathon uses 5 laps, while the junior race starts later on the track. Each kilometre is marked, results are chip timed, and entry includes a themed medal, free race photos, and post-race goodies. Science in Sport presents the event, and the format draws a practical mix of PB chasers, half marathon runners, families, and younger runners getting their own race-day slot.