Challenge Running Ltd
Next Race: 07/02/2027
Knettishall Heath Nature Reserve
Next Race: 07/02/2027
Knettishall Heath Nature Reserve
A 48(ish) mile route through historical Suffolk and Norfolk, tracing an ancient Pre-Roman trading route and Roman road. It is a mix of straight tracks, bridleways, footpaths, and quiet country roads, making it a great entry-level event for beginner ultra runners.
Live tracking link provided by Open Tracking. The finish cutoff is strictly 8:30 PM.
The full 48-mile trail run. Price: £70 pp (£60 for the first 30 entries).
All finishers receive a bespoke wooden medal. Quality custom T-Shirts and Buffs are available as optional extra purchases. There is a shuttle bus option (£20) from the finish to the start for those leaving cars in Holme-next-the-Sea.
You have the option to insure your race entry against illness, accidents, or travel delays for an additional 15%. Without this insurance, Challenge Running will not provide refunds under any circumstances. Deferrals/transfers are allowed up to 4 weeks before the race (subject to a £20 admin fee).
Start: Knettishall Heath Nature reserve, Thetford (Search Google/Apple Maps, postcode IP22 2TQ goes to a farm). Pay & display after 10am.
Finish: Holme-next-the-Sea Village Hall, Kirkgate, PE36 6LG. Pay & display nearby.
To leave your car at the finish, book the morning bus to the start (£20). The finish car park has a strict 6ft/2m height limit.
3 checkpoints and a finish CP. This is a cupless event. Bring a reusable cup or bottle.
Relatively flat and easy to navigate with local finger posts and National Trail Acorn markings. You will also be provided with detailed GPX files.
There is a potential 2-mile diversion if the boardwalk in the first few miles is underwater. All cutoffs are extended by 30 mins if the diversion is used.
Friends and supporters must not visit CP1, CP2, or CP3 due to strict zero-parking rules. They can wait for you at the finish hall (space permitting).
You can leave a small finish bag with dry, warm clothes at the start, which will be transported directly to the finish line.
February weather can range from mild to near freezing with wind and rain. Kit is strictly enforced and checked at registration.
Volunteers make this event possible. Please visit the volunteering page to see available roles and help support the runners.