Flat Marathons in December 2025
Find flat marathons near me 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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- Sat 13 Dec
- £39-£41
Crikey its the Christmas Cracker | Day 1 | Marathon
Take on this out and back course to really get in the Christmas spirit. This event isn't just about the race itself, the activities at Race HQ are bound start a jolly atmosphere!
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles trail running + 299 ft ascent
- Sun 14 Dec
- £37.50-£39.50
SoBo Series | Volume 1 | Step into Christmas
Set along the beachfront promenade at Southbourne (SoBo), choose your own distance from 5K to ultra, along this flat, tarmacked, lapped route suitable for all abilities.
- Beginner-friendly
- Enter online
- Flat
- PB
- Traffic free
- Event village
- Coast
- Public transport links
- Age 18 & over
- 7 hrs road running
- Sun 14 Dec
- £39-£41
Crikey its the Christmas Cracker | Day 2 | Marathon
An out and back course to really get you in the Christmas spirit with activities at Race HQ bound start a jolly atmosphere, whether you want a PB or to challenge yourself over marathon distance.
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles trail running + 299 ft ascent
- Fri 26 Dec
- £33-£35
Boxing Day Challenge | Marathon
Come and join the day of running and aim to complete a 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 18 & over
- 26.2 miles trail running + 0 ft ascent
- Sun 14 Dec
Baylor Scott & White College Station Marathon
- 26.2 miles road running
- Sun 21 Dec
Portsmouth Coastal Waterside Marathon Events | Portsmouth Coastal Waterside Marathon
- 26.2 miles multi terrain running
- Sun 28 Dec
Year End Marathon & Half Marathon | Marathon
- 26.2 miles trail running