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Mud & Mayhem Thetford - Duathlon, Trail Race, Canicross

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Come to Thetford Forest and compete in one of England's largest off road Duathlon and trail running events. Great for athletes of all stripes, the course takes you onto the muddy tracks of Thetford Forest. Come for the unique wooden finisher's medal or for your first taste of trail running.

How to enter the Mud & Mayhem Thetford - Duathlon, Trail Race, Canicross

  1. Duathlon

    Duathlon: Run 5.8km, Bike 20.5km, Run 5.8km
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  2. 5K

    Run 5km
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  3. 10K

    Run 10km
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  4. 15K

    Run 15km
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  5. Canicross 5K

    Run 5km
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  6. Canicross 10K

    Run 10km
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  7. Canicross 15K

    Run 15km
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Mud & Mayhem Thetford - Duathlon, Trail Race, Canicross routes


This popular Duathlon is well on its way to becoming to largest off-road event of its kind in East England and is set to be an epic race once again.

The course will consist of a 5.8KM trail running route; this can be done individually or as part of a two person relay.

The running will be split by an epic 20.5KM off road cycle through the best tracks that High Lodge Trails have on offer. A mountain bike is required.

Trail Running 5K/10K/15K

The trail running event will be a looped course through the surrounding woodland area, across dirty tracks and over tree trunks. Weather dependent there is a considerable chance that the course will be muddy.

5K athletes will complete the course once, 10K twice, and 15K three times.

Canicross 5K/10K/15K

The Cani trail will follow the same route as the above, however it will start slightly after ay 1110. Equipment can be hired - for a £20 deposit - and for those that have never run with a dog before, a useful link can be found here:

Event Details

What’s Included
  • Wooden finisher's medal
  • Winner's prizes
  • Water stations on the running route
  • Course marshalled
  • Medical aid on-site
  • Doggy treats
Raceday Logistics


0900 - 1040: Registration for all events
1100: Duathlon starts
1105: Trail run begins
1110: Cani trail begins

Please ensure you arrive within plenty of time of the race start to complete the registration process.

Kit List
  • Mountain Bike (Duathlon)
  • Bike helmets (Duathlon - mandatory)
  • Good quality cross trail shoes
  • A suitable canicross harness

Spectators are more than welcome to relax and enjoy all the facilities that High Lodge has on offer, while supporting athletes at the start and the finish line.

Afterwards, unwind in the Lodge's cafe and congratulate those who participated.


Go Beyond Challenge are always on the look out for an extra pair of hands to help out.

In return, volunteers will get free entry into a Go Beyond event and a free event t-shirt. If this sounds like something you would be interested in then get in touch with: [email protected]

Frequently Asked Questions

Are there toilet facilities?
High Lodge will have toilet facilities on-site.
Can I hire equipment for the Cani trail?
Canicross equipment can be borrowed on the day (£20 deposit).
Do I need to be a certain level of fitness?
With options ranging from a Duathlon to a 5K this truly is an event that is catered to all. Whether you're a seasoned campaigner or after your first taste of trail running then this is a great event to get involved with.

Mud & Mayhem Thetford - Duathlon, Trail Race, Canicross weather forecast

Rain in the afternoon and evening.

Predicted highs
Predicted lows
Icon70% chance of rain
IconModerate breeze possible, up to 15mph



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