Ultra runs in South East in December 2025
Find ultra runs near me in South East in December 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.
Filter by month
Filter by place
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Fri 5 Dec
- £20-£27
The Christmas Jumper Jaunt | 50K
Join in midweek run and as it's nearly Christmas this midweek event is The Christmas Jumper Jaunt - the wearing of your most over the top Christmas jumper is encouraged but not mandatory!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Fri 5 Dec
- £20-£27
The Christmas Jumper Jaunt | Ultra Marathon
Join in midweek run and as it's nearly Christmas this midweek event is The Christmas Jumper Jaunt - the wearing of your most over the top Christmas jumper is encouraged but not mandatory!
- Enter online
- Age 18 & over
- 30.6 miles trail running + 0 ft ascent
- Sat 6 Dec
- £28-£40
A Christmas Carol Bobble Hat Run | 50K
Come and join in Christmas Carol Bobble Hat Run, at this event you can earn yourself a bobble hat as well as one of the incredible themed medals!!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Sat 6 Dec
- £28-£40
A Christmas Carol Bobble Hat Run | Ultra Marathon
Come and join in Christmas Carol Bobble Hat Run, at this event you can earn yourself a bobble hat as well as one of the incredible themed medals!!
- Enter online
- Age 18 & over
- 30.6 miles trail running + 0 ft ascent
- Sun 14 Dec
- £26-£37.50
Running Tribe Races | Dec | 40 Mile Ultra Marathon
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
- Enter online
- Hilly
- Age 16 & over
- 40 miles multi terrain running + 8464 ft ascent
- Thu 25 Dec
- £23-£35
Christmas Day Cracker Run | 50K
After the success of the last 4 years of The Christmas Day Cracker Run, join the fifth Christmas Day run!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Thu 25 Dec
- £23-£35
Christmas Day Cracker Run | Ultra Marathon
After the success of the last 4 years of The Christmas Day Cracker Run, join the fifth Christmas Day run!
- Enter online
- Age 18 & over
- 30.6 miles trail running + 0 ft ascent
- Fri 26 Dec
- £28-£30
Boxing Day Challenge | Ultra Marathon
Come and join the day of running and aim to complete an ultra 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 20 & over
- 32 miles trail running + 0 ft ascent
- Fri 26 Dec
- £28-£30
Boxing Day Challenge | 6 Hour Challenge
Welcome to a 6-hour timed running event where you run as far as you can in 6 hours at your own pace on a flat, out-and-back route along the River Thames, with fuel stations, medal and goody bag.
- Enter online
- Flat
- Traffic free
- Age 18 & over
- 6 hrs trail running + 0 ft ascent
- Sat 27 Dec
- £23-£35
Year End Time Turner | 50K
Join the final event in 2025 and see the year out with a bang! You can choose the medal you want from a selection from throughout the year!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Sat 27 Dec
- £23-£35
Year End Time Turner | Ultra Marathon
Join the final event in 2025 and see the year out with a bang! You can choose the medal you want from a selection from throughout the year!
- Enter online
- Age 18 & over
- 30.6 miles trail running + 0 ft ascent
- Wed 31 Dec
- £33-£35
River Thames Run | Ultra Marathon
Welcome to a 6-hour timed running event where you can run a 5K all the way up to an ultra marathon on an out-and-back route within the time limit, with fuel stations, Rhino medal and goody bag.
- Enter online
- Age 20 & over
- 32 miles trail running + 0 ft ascent
- Sun 21 Dec
Portsmouth Coastal Waterside Marathon Events | 50K Ultra
- 50 km multi terrain running