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100 mile ultra runs in May 2026
Find 100 mile ultra runs in May 2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.
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- Sat 23 May 2026
- £163-£165
- Sat 23 May 2026
- £163-£165
Buntingford, Hertfordshire, UK
Farmmageddon | 100 Miles
Can you survive Farmmageddon? Held over 32-hours, runners will cover the fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm and receive a t-shirt, buckle and medal to prove it!
- Chip timing
- Enter online
- Undulating
- Traffic free
- Age 21 & over
- 100 miles trail running + 164 ft ascent