Trail runs in South East
Find trail runs in South East in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Wed 22 - Sun 26 Apr 2026
- £100-£350
- Early bird
Thames Ring Series
Take on this legendary 250-mile ultra following rivers and canals in a gruelling anti-clockwise loop through stunning countryside and historic towns within 100 hours.
Early bird on now
- Newcomers
- Event village
- Urban
- Rural
- Age 18 & over
- Ultra run 3
- Fri 1 May 2026
- £16-£27
Midweek Chasing Numbers May
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- Families
- Newcomers
- Event village
- All ages
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Mon 4 May 2026
- £16-£27
Bank Holiday Madness May
This Bank Holiday event is run as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- Families
- Newcomers
- Event village
- All ages
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 6 - Sun 7 Jun 2026
- £95-£105
- 2 charities
Endure24 | Reading
The UK’s favourite 24-hour trail race! Epic, Brutal, Relentless. Race against the clock to tackle as many laps of the iconic course as you can. How far can you go in 24 hours?
- Dogs allowed at venue
- Entertainment
- Music
- Ballot
- Chip timing
- Enter online
- Event village
- Event expo
- Park
- Free venue entry
- Sustainability policy
- Relay
- Age 18 & over
- 24 hrs multi terrain running
- Sat 13 Jun 2026
- £33-£62
Bewl Water Summer
Previously rated one of the top 10 UK marathons! Scenic mixed-terrain routes following Bewl Water around the reservoir route on undulating rural wooded trails and quiet country lanes.
- Newcomers
- Event village
- Rural
- Age 15-80
- 10K run
- Half marathon
- Marathon
- 50K ultra run
- Sat 20 Jun 2026
- £60-£175
Race to the King
Take on a challenge fit for royalty in this epic ultramarathon along the South Downs Way and Monarch’s Way. Choose from two unique 50km loops – or tackle both in a non-stop 100km challenge!
- Recycling
- Newcomers
- Entertainment
- Music
- Event village
- Park
- Rural
- Free venue entry
- Sustainability policy
- Public transport links
- Age 18 & over
- 100K ultra run
- 50K ultra run 2
- Trail run
- Ultra run
- Fri 26 Jun 2026
- £113-£115
Kent Backyard Ultra | Round Four: Bedgebury
Series finale on wide forest gravel through Bedgebury National Pinetum and Forest. Run a loop (a 'yard') every hour, on the hour, until only one runner remains. Miss the bell, and you're out.
- Newcomers
- Chip timing
- Enter online
- Undulating
- Traffic free
- Event village
- Rural
- Age 16 & over
- 1 day trail running + 305 ft ascent
- Sat 11 - Sun 12 Jul 2026
- £90-£275
Race to the Stones
Conquer Britain's oldest trail, the ancient Ridgeway, as you race towards the 5000-year-old Avebury Standing Stones.
- Families
- Recycling
- Newcomers
- Event village
- Rural
- Sustainability policy
- Public transport links
- Age 18 & over
- 50K ultra run 2
- 100K ultra run 3
- Sat 12 Sep 2026
- £33-£62
Bewl Water Autumn
Previously rated one of the top 10 UK marathons! Scenic mixed-terrain routes following Bewl Water around the reservoir route on undulating rural wooded trails and quiet country lanes.
- Newcomers
- Event village
- Rural
- Age 15-80
- 10K run
- Half marathon
- Marathon
- 50K ultra run
- Sat 8 Nov
Five Trails Ultra & Three Trails Half
- Half marathon
- 50K ultra run
- Sun 9 Nov
Remembrance Day Marathon & Half Marathon
- Half marathon
- Marathon
- Sat 6 Dec
Cowdray Estate Trail Run Series - Winter
- 5K run
- CaniCross 2
- 10K run