Road Marathons in UK in March 2026
Find road marathons in UK in March 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
Filter by date
Filter by place
Filter by category
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sun 15 Mar 2026
- £24-£38
The Dashing Dog Charity Run - Wales | Marathon
Come and join for Dashing Dog Charity run in the beautiful Dare Valley Country Park in Wales, not only is the scenery beautiful and you will earn one of the awesome medals...
- Enter online
- Age 18 & over
- 26.2 miles road running + 135 ft ascent
- Sun 22 Mar 2026
- £25-£40
The Dashing Dog Charity Run | Marathon
Come and join in for Dashing Dog Charity run along the picturesque River Thames, not only is the scenery beautiful and you will earn one of the awesome medals...
- Enter online
- Age 18 & over
- 26.2 miles road running
- Sun 29 Mar 2026
- £33
Brett Lydd 20 Mile
A delectable racing experience perfect for those planning a spring marathon, over a pancake flat course using the wide, quiet country lanes surrounding the marsh town of Lydd in Kent.
- Chip timing
- Enter online
- Flat
- PB
- Age 18 & over
- 20 miles road running + 3 ft ascent
- Sun 8 Mar 2026
Great Welsh Marathon Events | Full Marathon
- 26.2 miles road running + 363 ft ascent
- Sun 22 Mar 2026
Y2Y North Downs Trek / Run | Marathon Run
- 26.2 miles road running + 3025 ft ascent