- Sat 23 May 2026
100 Miles
08:00
Age 21 & over
£163-£165
- 100 miles trail running + 164 ft ascent

Event overview
The endurance weekend of challenge!
Back for its second year! Farmmageddon is a 100-mile event held over 2 days from the lovely venue of Hyde Hall Farm.
This 100-mile event will be held over a 32 hour time period and will be one of many distance options available for participants. The route is a 5.3K loop.
Those completing the 100-mile distance will receive a t-shirt and a commemorative buckle. Those completing any other distance will receive a Farmmageddon medal or choose one of the other Hyde Hall Event medals. There will be a water and aid station located at the lap point so no stress of having to carry lots of food, water or equipment.
There will be a baggage area where you can leave warm clothes and shoes for when you complete your distance.
This event is part of Farmmageddon.
Event photos
- Average fitness
- Event village
- Newcomers
- Teams
Dogs
Dogs on leads are usually allowed at the venue, but they are not allowed to run with you.
- Bag storage
- Free parking
- Rural
- Toilets
Event HQ
Hyde hall farm
Buntingford
Hertfordshire
SG9 0RU
UK
Parking is included.
- Cut off time
- First aid
- Marshals
- Mass start
- Multiple laps
- Toilets
- Traffic free
- Undulating
- Water stations
- Way markers
- GPX available
GPX route
The route is displayed on the map above.
Overview
The course is a trail event and contains some tarmac paths, grassland and trail.
The terrain consists of country park footpaths and grass areas. The suggestion is to wear road trainers, but depending on the weather before the event you may want to bring trail shoes if you have them but they are not essential. The course is mainly pathway with a small section of trails and woodland. Our suggestion is to wear road trainers but depending on the weather before the event you may want to bring trails if you have them but not essential.
Map

3.33 mile loop / 164ft ascent
Aid stations
You can expect well-stocked aid stations every 5km to 10km, depending on your chosen distance, and these include crisps, chocolate, bananas etc.
- Bring your own cup
This event is taking steps to be more sustainable:
Cupless
Runners can buy a reuseable cup at the event.
Car share
Car sharing is actively encouraged.
Medals
Runners often have the choice between a bespoke medal for this event specifically, or a 'lucky dip medal' which is a scheme to help use up medals from other races to prevent them going to landfill.
- Cake
- Chip timing
- Map
- Medal
- T-shirt
Included
There are many perks to entering this event, including:
- Be part of the endurance weekend
- Respect from everyone present!
- Medal
- T-shirt
- Buckle (unique to 100-mile challenge)
- Chip timing
- Encouragement throughout
- Hot drink
- Cake
- Other fuel and support
- Community-feel
- Great location to tackle 100-miles
- Age 21 & over
- Entries open
- Collect race pack
- Enter online
Entry fees
Entry fee (Affiliated)
£163.00
Entry fee (Unaffiliated)
£165.00
A brilliant race experience - so well organised and welcoming! This was our first trail race, a challenging route at times but the organisers/ other runners made it all worthwhile! We had a great day. Really appreciated the relaxed atmosphere and genuine support of all the runners for each otherβs achievements! Thank you! Harri P
Absolutely amazing, best weekend, really well looked after. Marshals checking in frequently to see how you were getting on, fabulous space for all your kit, chairs table etc. Lucy F
What a wonderful race! Music at the checkpoint, getting the super long people out and settled before unleashing shorter format peeps, pizza, and an atmosphere that supports and pushes you. The only downside is wanting to stay and chat at the aid station! Andrew G
An incredible weekend. An awesome experience, extremely well organised. The zigzag crew are very supportive, such a great weekend, I enjoyed every second. Daniel W
A fabulous event in a great area with incredible support. Samantha W
Remember this forever. Really friendly atmosphere, and a good day out. James W
Very enjoyable race. Everyone friendly and helpful. Would definitely recommend for any ability. My one ask is if you are going to take details such as age category and chip times, can you publish results at that level as I found the results too summarised. Thank you! Naomi O
1st time doing this kind of run. Was great fun. Loved it, was very friendly. Victoria W
Amazing experience. The event organisers are passionate, friendly and they have βcan do β attitude. I love how easy to register, turn up and enjoy the event. Everyone, including participants, is very friendly and loves what they do. And this reflects to the atmosphere. Salma H
Very well organised, friendly event. Mary D
Other races at event
- Sat 23 May 2026
- #1 of 0
5K
09:00
Age 18 & over
£33-£38
- 5 km trail running + 164 ft ascent
- Sat 23 May 2026
- #2 of 0
10K
09:00
Age 18 & over
£33-£38
- 10 km trail running + 164 ft ascent
- Sat 23 May 2026
- #3 of 0
Half Marathon
09:00
Age 18 & over
£33-£38
- 13.1 miles trail running + 164 ft ascent
- Sat 23 May 2026
- #4 of 0
Full Marathon
09:00
Age 18 & over
£33-£38
- 26.2 miles trail running + 164 ft ascent
- Sat 23 May 2026
- #5 of 0
Ultra Marathon
09:00
Age 18 & over
£33-£38
- 32 miles trail running + 164 ft ascent
- Sat 23 May 2026
- #6 of 0
24 Hour Challenge
08:00
Age 21 & over
£123-£125
- 24 hrs trail running + 164 ft ascent
- Sat 23 May 2026
- #8 of 0
12 Hour Challenge
08:00
Age 21 & over
£63-£65
- 12 hrs trail running + 164 ft ascent
