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

- Sun 4 May
- Entries closed
- Sun 4 May
- Entries closed
Worthing RUNFEST Half Marathon
Enjoy a fully closed road race, on flat coastal roads with a spectacular seafront finish. Chance to take home a PB along with the finishers' t-shirt and medal.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 13.1 miles road running

- Mon 5 May
- £36-£46
- Mon 5 May
- £36-£46
MK Half Marathon
A popular, fast, scenic AIMS-certified race, with BARR Gold accreditation for outstanding race management featuring beautiful lakes, parks, and picturesque villages with the highest level of support.
- Chip timing
- Enter online
- GPS tracking
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles road running

- 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

- Sun 25 May
- £35
- Sun 25 May
- £35
ATW Chiltern Half Marathon
Get involved in this exhilarating Half Marathon in the stunning Chiltern Hills! This Area of Outstanding Natural Beauty offers the perfect mix of challenging climbs rewarding descents.
- Enter online
- Age 17 & over
- 21.1 km trail running
- Sun 4 May
Three Forts Challenge | Half Marathon
- 13.1 miles multi terrain running
- Sat 10 May
The All Nations 5K, 10K and Half Marathon Run | Half Marathon
- 13.1 miles road running
- Sun 11 May
The Lexicon Bracknell Half Marathon
- 13.1 miles multi terrain running
- Sat 17 May
London West Spartan Trifecta Weekend | Beast 21K - Saturday
- 21 km multi terrain running
- Sun 18 May
The Ridge Off Roader | Half Marathon
- 13.1 miles multi terrain running
- Sun 18 May
Goring Gap Trail Weekender | Half Marathon
- 13.1 miles trail running
- Sun 18 May
Pulborough Vineyard Run | Half Marathon
- 13.1 miles trail running
- Sun 25 May
Run Dorney 5K, 10K & Half Marathon | Half Marathon
- 13.1 miles road running
- Sun 25 May
UK Ultra Seven Sisters Half Marathon
- 13.1 miles trail running
- Sat 31 May
The Otmoor Challenge | Half Marathon
- 13.1 miles multi terrain running