- Sun 26 Oct 2025
09:00
Age 18 & over
£55
- 30 miles trail running + 188 ft ascent

Event overview
Stunningly pretty 30-mile ultra on the border of Hertfordshire and Essex along the River Stort and Lee navigation's.
15 flat and fast miles out and back with a generous 7 hour cut-off, a great first foray into ultra running or a fast competitive race for those with a time target.
Age group medals and prizes and trophies for the 1st three Male and Female Open races.
Entry-level ultra that will have you coming back for more! No navigation required, perfectly spaced aid stations, 99% flat.
Event photos
Event video
- Average fitness
- Event village
- Newcomers
Timetable
Ability level
You should be able to complete a half marathon in under 3 hours, or a marathon in under 6 hours.
- Bag storage
- Changing facilities
- Paid parking
- Rural
- Showers
- Toilets
Event HQ
Hockerill Sports & Social Club
Beldams Lane
Bishop's Stortford
Essex
CM23 5LG
UK
Parking
There is no parking at the clubhouse; drop off and pick up only.
Please park at the local train station in Bishop's Stortford (pay and display or pay by phone) and walk up to the start (15-minute walk).
Please do not park on local streets or grass verges, and avoid disqualification from the race.
- Check points
- Cut off time
- Distance markers
- Flat
- Food stations
- Marshals
- Out and back
- Water stations
- Way markers
Overview
The route is mostly grassy trail or graded footpath, with only the first half a mile on footpaths/tarmac and the last half mile on the way back.
The route is flat and mostly good underfoot with a mixture of graded gravel paths and riverside trail. If it's wet, about 12 miles in total can be muddy/wet riverside trail that can be slippery.
You will run out for 15 miles and turn around and come back along the same scenic route.
All runners can download a written route description below as a backup, but the route is very easy to follow along the River Stort. There will be signage before and after every turn to ensure the route is as clear as possible, but please use the route description or GPX file in case signs are moved or vandalised.
Please note the diversion at Fieldes Weir; it has been updated on the route description and the GPX file.
Map

Checkpoints
Checkpoints are every 5 miles (approx.) with some of these: water, squash, basic sweets, cake, snacks, chicken bites, cocktail sausages and veggie bites. Gluten-free options will be available, but you are advised to bring your own supplies.
CP1/5 Location - 5.4 miles
Sheering Mill Lane, Sawbridgeworth, CM21 9PE
CP2/4 Location - 9.6 miles.
Burnt Mill Lane, Harlow, CM20 2QS
CP3 Turnaround Location - 15 miles.
Rye House, Rye Road, Hoddesdon, Herts, EN11 0EH
Cut off
- 3.5 hours for 15 miles
- 7 hours for 30 miles
- If you are over the cut-off at the 15-mile turnaround point, you will be stopped and transported back to the start/finish.
Sustainability
- Bring your own cup
- Optional t-shirt
- Chip timing
- Drinks
- Medal
- Snacks
- Technical t-shirt
- Trophy
Included
- Race medal for all finishers
- Free tea and coffee and soft drinks after the race in the clubhouse
Optional extra
- Option to add which piece of race clothing you get at the finish when you enter - T-Shirt or Neck Tube. Late entries only get a Neck Tube as a purchase option.
Prizes
- Trophies for the first three runners of each sex
- There will be additional medals presented for 1st, 2nd and 3rd male and female in each age category
- Age categories are: Overall/Open, 35-39, 40-44, 45-49, 50-54, 55-59, 60-65, 65-69, 70-74, 75+
- Please note you can only win one category eg. If you win the race, you can't also win the 40-44 category and it will go to the second person in that age group
- Fewer than 3 in your category then only Gold is awarded
- Fewer than 5 in your category then only Gold and Silver are awarded
- 5 or more in your category and Gold, Silver and Bronze are awarded
- Age 18 & over
- Entries open
- Collect race pack
- Enter on day
- Enter online
- Event merch available
Race numbers are collected on the day and you will receive a confirmation email the week before the event reminding you of some important info posted online.
Entry fees
Entry fee
£55.00
It was my first ultra. Very suitable for a first timer. Very well-stocked fuelling stations with very friendly marshals. Anon
Have run this event a few times now and I still love it despite the mud! A nice and flat ultra marathon which, although flat, offers a variety of terrains along the way to keep it challenging. Very well organised but a nice, friendly team. The feed stations are well-positioned and manned by lovely marshalls. Kerry Mavris
The marshals were incredible, and a wonderful entry-level Ultra. Definitely got me itching for more and I'd recommend this race to everyone. Little bit of sunshine next time, though, hey? Anon
A nice, flat scenic course for a first ultra. Great food stations, lots of food and drink to choose fro,m even for the slower runners. Friendly encouraging marshalls too. Anon
Better than Tough Mudder. Great route, organisation and volunteers. Very muddy on the day, so come prepared! Anon
Entry-level ultra that will have you coming back for more! I have run this even 5 times, and have loved each one. No navigation required, perfectly spaced aid stations, 99% flat (until the last mile!), a good mix of trails (everything from hard-packed paths to sloppy mud (depending on weather!) and a lovely mix of runners. Anon
Great first ultra. Ran this yesterday as my first ultra, was well signposted, regular aid stations with very cheery and enthusiastic volunteers and a range of food and drinks which I liked a lot. Very glad I did it. The route was almost entirely off road, occasionally muddy. Have already recommended to my friends who are considering it.
A well-organised event with good checkpoints. Julia B
Reviews thanks to RaceCheck
