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Half marathons in Hertfordshire in May 2026
Find half marathons in Hertfordshire in May 2026 - 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 23 May 2026
- £33-£38
Buntingford, Hertfordshire, UK
Farmmageddon | Half Marathon
Can you survive Farmmageddon? A fantastic half marathon through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
- Chip timing
- Enter online
- Traffic free
- Age 18 & over
- 13.1 miles trail running + 656 ft ascent
- Sun 31 May 2026
- £34-£36
Ware, Hertfordshire, UK
Circuit Du Sore Legs | Half Marathon
In its sixth year! Come take on the challenge of the track at Wodson Park. Do you have it in you to complete your distance on a 400-metre athletics track?
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 13.1 miles track and field
- Sun 10 May 2026
Letchworth Garden City, Hertfordshire, UK
The Greenway Challenge
- 13 miles trail running