Half marathons in East Sussex
Find half marathons near me in East Sussex for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Click an event for full event details, location, route, sustainability, what's included and how to enter.

- Sat 10 May
- £43-£45
- Sat 10 May
- £43-£45
Bewl Water Spring | Half Marathon
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon on the same day was previously rated one of the top UK marathons.
- Chip timing
- Enter online
- Hilly
- Age 17 & over
- 13.1 miles trail running

- Sat 13 Sep
- £43-£45
- Sat 13 Sep
- £43-£45
Bewl Water Autumn | Half Marathon
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course was previously rated one of the top UK marathons.
- Chip timing
- Enter online
- Undulating
- Age 17-80
- 13.1 miles trail running

- Sun 5 Oct
- £37-£45
- Sun 5 Oct
- £37-£45
Hastings Half Marathon | Half Marathon
The HHM returns! It's the race you'll want to keep racing, year after year. Explore the delights of the Hastings Half Marathon as it twists & turns through the historic town of Hastings and beyond.
- Chip timing
- Enter online
- Hilly
- Age 17 & over
- 13.1 miles road running

- Sun 1 Mar 2026
- Sun 1 Mar 2026
ALTRA Brighton Half Marathon
Join the UK's Happiest Half - a fast, flat race with a buzzing Brighton atmosphere. An early season major half and one of the most popular races in the UK!
- Chip timing
- Enter online
- Traffic free
- Age 17 & over
- 13.1 miles road running
- Sun 27 Apr
The Rathfinny Run 10.7K and Half Marathon | Half Marathon
- 21.4 km trail running
- Sun 25 May
UK Ultra Seven Sisters Half Marathon
- 13.1 miles trail running
- Sat 4 Oct
London South East Spartan Trifecta Weekend | Beast 21K - Saturday
- 21 km multi terrain running