Trail Running calendar near Thetford 2025-2026

We have found 172 Trailruns within 80 miles of Thetford. See below where and when you can find the races.

Run a scenic 10 mile loop through North Milton Keynes parklands, riverside paths and woodland, featuring the quirky Cattle Creep tunnel under the Grand Union Canal. Dog friendly and chip timed with marshals and a finish medal for all finish..

Take on a 5k canicross at Irchester Country Park, winding through woodland trails with expert guidance on hand. Finishers get medals, trophies and dog treats in a friendly, supportive atmosphere.

Join a guided 16k trail run at High Lodge Thetford Forest on 8 February 2026, following scenic woodland tracks and gentle hills. Run at a conversational pace with groups, enjoy trail tips from guides, and soak up the forest atmosphere.

Take on the Winter Poppyline on 14 to 15 February 2026, a 50 mile winter walking challenge across the coastal and rural landscapes of north east Norfolk. Expect night navigation, hot checkpoints and a tough, rewarding adventure.

Run the Marriott's Way Marathon or Half Marathon on 15 Feb 2026 along a scenic, traffic free trail finishing at Aylsham Friendship Hall. Limited to 400 entrants, with course support and 5% of entries donated to East Anglian Air Ambulance.

Run the traffic free Flitch Way on two 5.3 km marked loops, choosing distances from 5K to marathon or a timed 6 hour challenge. Pick a bespoke medal and enjoy lap aid station support at this cupless event so bring your own cup.

The Phoenix Running - Greater London will take place in Greater London on Sunday 15 February 2026. You can run between 3 and 28 miles.

Join Any Kind of Weather Runner at Northampton Active on 21 February 2026 for a six hour challenge where you can tackle distances from 5k up to ultra. Finishers receive a medal and goody bag and aid stations on each lap will keep you fueled..

Take on the 42 mile St Peters Way Ultra along the historic footpath from Chipping Ongar to St Peter on the Wall at Bradwell on Sea. Rolling trails, variable underfoot and a windswept sea wall finish make for a rewarding coastal challenge.

Join the Hadleigh Legacy 10k at Hadleigh Country Park on 22 Feb 2026 for a scenic yet testing single lap trail with hills, mud and fields. Expect a bespoke medal, free photos and competitive wave starts.

Run the picturesque 5 km loops through Thetford Forest at High Lodge, with distances from 5 km up to ultra and a small friendly field capped at 300. Enjoy post race tea and cake while 20 percent of fees support forest upkeep.

Join the Dirt Run, a two round multi terrain series in Northamptonshire at Irchester on 25 January and Brigstock on 22 February. Choose 5 km to 15 km on mixed trails, paths and roads with a muddy hill to test you and a custom medal for fini..

March 2026

Choose a 10k or half marathon and enjoy scenic trails around Pitsford Water starting and finishing at Brixworth Country Park on 1 March 2026. Fully marked and marshaled routes include village passages and a few stiles on the half for a rewa..

Take on a scenic half marathon in Thetford Forest on a traffic free circular trail, with chances to spot deer and wild thyme across varied underfoot surfaces. Finishers get a medal and podium trophies for the top three men and women.

Take on scenic trails through private woodlands and rolling fields at Stody Estate with 4, 8 and 12 km options, chip timing, eco friendly medals and event photos. Enjoy a post run refreshment zone serving bacon rolls, cakes and hot drinks.

Join the Humanity Direct Amersham Ultra on 7 March for scenic footpath and bridleway routes of 10 km, 25 km or 50 km starting at Dr Challoner's School. Run or walk to fundraise for Humanity Direct and earn a finisher medal.

Thunder Races brings 25 km and 50 km trail runs through the woodland and countryside around Harrold Odell Country Park in Bedford. Enjoy marked routes, aid stations and a finisher medal plus goodies for a memorable spring trail challenge.

UTMB Index

Berko 10km is a guided 10 km trail run through woods and scenic Chiltern Hills around historic Berkhamsted, starting near the castle ruins. Groups run with a leader who shares trail tips and local history, ideal for those who can manage 5 k..

Take on 15.5 or 26.6 mile routes at the 6th Hannington Hike on 8 March 2026 in Wellingborough, across rolling Northamptonshire countryside. Entries include checkpoints, refreshments and a hearty finish meal.

Join a guided 16k trail run at High Lodge in Thetford Forest, paced conversationally for runners moving from road to trail. Explore varied woodland surfaces with gentle coaching on hill technique and a friendly, inclusive group vibe.