Run Dorney Lake Half Marathon, 10k & 5k - December

Get ready to lace up your running shoes for the exhilarating Run Dorney Lake Half Marathon, 10k & 5k, taking place on Saturday, December 12th, 2026! Organized by Dorney Lake Events, this fantastic event will be held at the stunning Dorney Lake in Windsor, Berkshire, the iconic site of the London 2012 Olympic rowing events. Whether you're a seasoned runner or just starting your fitness journey, this event offers something for everyone with distances of 5k, 10k, and a challenging Half Marathon. The flat, chip-timed course is perfect for achieving personal bests, making it an ideal day for competitive runners and fun-seekers alike. Starting at 9:10 am, participants will enjoy a scenic route that showcases the beauty of the lake and its surroundings. With an elevation of just 27m for the Half Marathon and 15m for the 10k, runners can look forward to a smooth and enjoyable experience. So mark your calendars for this exciting day of fitness and community spirit at Dorney Lake—it's an event you won't want to miss!

Join us for the Run Dorney Lake Half Marathon, 10k & 5k on Saturday 12th December 2026 Join us for a 5k, 10k or Half Marathon distance at the home of London 2012′s Olympic rowing events. Dorney Lake is situated near the village of Dorney in Buckinghamshire, is a purpose-built rowing lake with grounds that are a perfect backdrop to running as well as rowing. The flat course is ideal for a chip-timed personal best over the 5k or 10k distance. Race Distance & Start Times: 09:10 am - All Distances Half Marathon Elevation - 27m | Laps - 4 + U-turn each lap | Terrain - Road 10k Elevation - 15m | Laps - 2 | Terrain - Road 5k Elevation - 8m | Lap - 1 | Terrain - Road Race End: 12:10 pm