61
Trail Half marathons in South East
Find trail half marathons 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.
Filter by date
This week
This weekend
Next week
Next weekend
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Sep
Oct
Autumn
Winter
Spring
Summer
Filter by place
Filter by category
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sun 8 Mar 2026
Dorking, Surrey, UK
Leith Hill Half Marathon
- 13.1 miles trail running + 1778 ft ascent
- Sun 22 Mar 2026
Milton Keynes, Buckinghamshire, UK
Twin Lakes 20 | 20 Mile
- 20 miles multi terrain running
- Sun 29 Mar 2026
Arundel, West Sussex, UK
Springtide Half Marathon
- 13.5 miles trail running + 1175 ft ascent
- Sun 10 May 2026
Reading, Berkshire, UK
Goring Gap Trails | Run - Half Marathon
- 13.1 miles trail running + 102 m ascent
- Sat 23 May 2026
Eastbourne, East Sussex, UK
Seven Sisters Half Marathon
- 13.1 miles trail running + 2057 ft ascent
- Sun 14 Jun 2026
Tring, Buckinghamshire, UK
Wendover Woods Half Marathon & 10K | Half Marathon
- 13.1 miles trail running + 1483 ft ascent
- Sun 14 Jun 2026
Kingsclere, Hampshire, UK
The Hampshire Hoppit | Half Marathon
- 13.1 miles trail running + 330 m ascent
- Sun 5 Jul 2026
Aylesbury, Buckinghamshire, UK
Chiltern Ridge Half Marathon
- 21.3 km trail running + 526 m ascent
- Sun 13 Sep 2026
Dorking, Surrey, UK
Bacchus Wine Half Marathon
- 13.1 miles trail running + 1427 ft ascent
- Sat 3 Oct 2026
Lewes, East Sussex, UK
Dark Downs Half Marathon
- 13.8 miles trail running + 1686 ft ascent