Flat Trail runs in London
Find flat trail runs in London in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sat 23 May
- £89
London 2 Brighton Ultra Challenge | 1st Quarter
Starting in leafy Richmond, follow the River Thames past Kingston along a scenic route, which arrives at the finish in Oaks Park for a BBQ lunch and celebration.
- 25 km trail running + 200 m ascent
- Sun 9 Aug
- £33-£55
Thames Meander Summer
Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great support, medal and photo.
- 10K run
- Half marathon
- Marathon
- Fri 11 - Sun 13 Sep
- £39-£199
Thames Path Ultra Challenge
England’s greatest river provides a fantastic backdrop for an unforgettable 'festival' challenge weekend, with distances from 10km right up to 100km there’s a Thames Challenge for everyone!
- 100K ultra run 2
- 50K ultra run 2
- Trail run 4
- Charity walk 4
- Ultra run
- + 1 more race
- Sun 4 Oct
- £33-£55
Thames Meander Autumn
Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great support, medal and photo.
- 10K run
- Half marathon
- Marathon
- Sun 29 Nov
- £8-£35
London Richmond Riverside MoRun
MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready, London!
- Fun run
- 10K run
- Half marathon