Trail Half marathons in South East in December 2025
Find trail half marathons in South East in December 2025 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Fri 5 Dec
- £20-£27
The Christmas Jumper Jaunt | Half Marathon
Join a December midweek half marathon and wear your most over-the-top Christmas jumper (optional) then receive a themed medal and goody bag too!
- Enter online
- Flat
- Age 17 & over
- 13.1 miles trail running + 0 ft ascent
- Sat 6 Dec
- £28-£40
A Christmas Carol Bobble Hat Run | Half Marathon
Welcome to a 7-hour timed running event where you can run a half marathon at your own pace on an out-and-back route, with fuel stations each lap, and a bobble hat, medal and goody bag at the finish.
- Enter online
- Flat
- Age 17 & over
- 13.1 miles trail running + 0 ft ascent
- Thu 25 Dec
- £23-£35
Christmas Day Cracker Run | Half Marathon
Come and join the morning of running and aim to complete a half marathon at your own pace on a scenic course with Christmas Dinner on route, present, themed medal and goody bag at the finish!
- Enter online
- Traffic free
- Age 17 & over
- 13.1 miles trail running + 0 ft ascent
- Fri 26 Dec
- £28-£30
Boxing Day Challenge | Half Marathon
Come and join the day of running and aim to complete a half marathon at your own pace on a flat, out-and-back route along the River Thames then receive a bespoke medal and goody bag at the finish!
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 13.1 miles trail running + 0 ft ascent
- Sat 27 Dec
- £23-£35
Year End Time Turner | Half Marathon
Come and join the day of running and aim to complete a half marathon at your own pace on a scenic course then receive a fantastic pick and mix medal and goody bag at the finish!
- Enter online
- Age 17 & over
- 13.1 miles trail running + 0 ft ascent
- Wed 31 Dec
- £33-£35
River Thames Run | Half Marathon
Come and join the day of running and aim to complete a half marathon at your own pace on an out-and-back route along the River Thames, then receive a medal and goody bag at the finish!
- Enter online
- Traffic free
- Age 17 & over
- 13.1 miles trail running + 0 ft ascent
- Sun 28 Dec
Year End Marathon & Half Marathon | Half Marathon
- 13.1 miles trail running