Run Dorney Lake Marathon

OCT
3
2026
Run Dorney Lake offers flat, fast chip timed 5k, 10k and half marathon races on the scenic rowing lake in Windsor. Enjoy a lively event village, themed medal, free photos and post race goodies for a fun day out.
Sat 3 Oct 2026
Half Marathon 10 kilometers 5 kilometers

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Event overview

The Run Dorney Lake Half Marathon, 10k & 5k takes place on Saturday 3rd October 2026 at Dorney Lake, Windsor, UK. The course is on the purpose-built rowing lake grounds and is presented as flat and chip-timed, with each kilometre marked by distance flags and marshals along the route.

  • 5K - Elevation 8m; Lap 1; Terrain - Road
  • 10K - Elevation 15m; Laps 2; Terrain - Road
  • Half Marathon - Elevation 27m; Laps 4 plus U-turn each lap; Terrain - Road

Entries and included services

Entry options and fees listed are: 5K (£28), 10K (£30), Half Marathon (£34) and a RunThrough Foundation place (no fundraising required, £80). Entries are chip-timed and include a themed medal, free race photos, post-race goodies and chip-timed results.

Event logistics

The event features an event village with food and drink options and free partner-provided goodies at the finish. Marshals will guide runners around the course. An event t-shirt is available at discount when purchased with an entry via the organiser’s kit partner. Sustainability is noted as a priority by the organiser. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
10 km
10k
5 km