like us on facebook
Register now!

5k-20k-5k of pure fun!

Race Information Document

The numbers and race timing chips will be ready for collection at the information tent on race day. Please click Here for the race information document

The GRIM Duathlon is a tough short-course duathlon – and it’s got a new venue!

Yes, we’ve moved the venue to a new site just off junction 4a from the M3 so a stones through from our usual venue. Slightly easier than our last venue (it was too tough on the bikes!), competitors will still need to take on the army’s trails, hills, mud, water and cammo nets to complete the course. All the elements are there to be mastered and it will certainly provide a test for man and machine.

Enter as an individual or round up some gutsy mates and enter as a team of three. The runs are 5k, the bike, 20k. It’s tough but then so are you – right?

Like all GRIM events, it’ll also a lot of fun. We get the hard-core at the front but the majority of the competitors are game for a challenge and by no means professionals so why not give it a go? It’s a great event for all; a great challenge for beginner to pro. Hope to see you on the start line.

Our official charity partner for GRIM Duathlon is Macmillan Cancer Support, helping people live with cancer. We are delighted that they are supporting us and we hope you’ll support them by raising a little sponsorship for your effort.

Enter NOW

Earlybird entry – £35 per person until 28th February

Standard enrty – £40 per person until 30th September

Late entry – £45 per person from 1st October

All entries subject to £2 entry system fee


GRIM Duathlon is supported by

Visit Chain Reaction Cycles