Ultra runs in Hertfordshire
Find ultra runs near me in Hertfordshire 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 1 Nov
- £55.50-£57.50
- Sat 1 Nov
- £55.50-£57.50
Rocket Around the Running Track
Welcome to the Fireworks Festival of Running! Come and tackle the 400 metre athletics track for 12 hours and see how far you can go!
- Newcomers
- Music
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Event village
- Park
- Age 21 & over
- 12 hrs track and field
- Sat 1 Nov
- £55.50-£57.50
- Sat 1 Nov
- £55.50-£57.50
Fireworks 50
Welcome to the Fireworks Festival of Running! Come and tackle the 400 metre athletics track for the festival's ultimate goal of 50 miles in 12 hours! Have you got what it takes?
- Newcomers
- Music
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Event village
- Park
- Age 21 & over
- 50 miles track and field
- Sat 1 Nov
- £35.50-£37.50
- Sat 1 Nov
- £35.50-£37.50
Catherine Wheel Canter | Ultra Marathon
Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can complete more than a marathon over multiple laps of the 400m circuit.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 18 & over
- 50 km track and field
- Sat 1 Nov
- £35.50-£37.50
- Sat 1 Nov
- £35.50-£37.50
Catherine Wheel Canter | 6 Hours
Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can keep going for 6 hours doing laps of the 400m circuit - a physical and mental test of stamina.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 18 & over
- 6 hrs track and field
- Sat 1 Nov
- £35.50-£37.50
- Sat 1 Nov
- £35.50-£37.50
Guy Fawkes Gallop | Ultra Marathon
Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can complete more than a marathon over multiple laps of the 400m circuit.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 18 & over
- 50 km track and field
- Sat 1 Nov
- £35.50-£37.50
- Sat 1 Nov
- £35.50-£37.50
Guy Fawkes Gallop | 6 Hour
Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can keep going for 6 hours doing laps of the 400m circuit - a physical and mental test of stamina.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 18 & over
- 6 hrs track and field
- 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
- Sat 1 Nov
Chiltern Ridge Winter 50K
- 50 km trail running + 800 m ascent