Ultra runs in Hertfordshire in May 2026
Find ultra runs near me in Hertfordshire in May 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 23 May 2026
- £123-£125
- Sat 23 May 2026
- £123-£125
Farmmageddon | 24 Hour Challenge
Can you survive Farmmageddon? Run, jog or walk a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend for 24 hours and see how far you can go.
- Chip timing
- Enter online
- Undulating
- Traffic free
- Age 21 & over
- 24 hrs trail running
- Sat 23 May 2026
- £163-£165
- Sat 23 May 2026
- £163-£165
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
- Sat 23 May 2026
- £63-£65
- Sat 23 May 2026
- £63-£65
Farmmageddon | 12 Hour Challenge
Can you survive Farmmageddon? You have 32 hours to complete 100 miles over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm. 24-hour or shorter distance options too.
- Chip timing
- Enter online
- Undulating
- Traffic free
- Age 21 & over
- 12 hrs trail running
- Sat 23 May 2026
- £33-£38
- Sat 23 May 2026
- £33-£38
Farmmageddon | Ultra Marathon
Can you survive Farmmageddon? Run an ultra over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
- Enter online
- Undulating
- Traffic free
- Age 18 & over
- 32 miles trail running