Trail Running calendar near Chalfont Saint Peter 2026-2027

A 10 hours 10 laps endurance event at Denbies Wine Estate with roughly 3, 4 or 5 mile loops and graded finishers awarded a medal and coloured shirt.

A spring trail event in Harewood Forest near Andover offering 5k, 10k, canicross and a childrens fun run on undulating, multi terrain courses with marked routes and on course marshals.

Off-road half marathon and 10 km through Collingbourne woods near Ludgershall with aid stations, medical support, chip timing and medals for all finishers.

A two-day, self-supported navigation and endurance event for teams of two in the Surrey Hills, based at Newlands Corner with limited entries, basic camping and an entry fee that includes maps and a t-shirt.

A point-to-point 50 km ultramarathon from Horsham to Brighton seafront on 8 May 2027, with mixed trails, four feed stations, full course signing and individual or two-person relay entry options.

A mud obstacle 5k at Southsea Common with climbs, crawls and slides on a mainly flat route. Waves start every 15 minutes, participants must be 13 or older, and the event supports fundraising for Cancer Research UK.

Nuclear Rush in Brentwood, Essex offers muddy obstacle races at the Secret Nuclear Bunker Estate with a 6 km course (40+ obstacles) or a 12 km course (70+ obstacles).

An inflatable obstacle course and fun run in Guildford, Surrey on 8 May 2027 offering 2.5k, 5k, 10k and 15k distances with music zones, water stations and a finisher medal for every participant.

A weekend trail running festival at Deene Park Estate near Corby on 8 and 9 May 2027. It features three challenges from 10 km to 56.1 km, medals for finishers and a combined Quest option.

Stroud Trails on 9 May 2027 offers four marked trail races across the Cotswolds with checkpoints, water stations, marshals and a mandatory 500 ml water carry.

Shires and Spires is a multi-distance running event around Naseby in Northamptonshire featuring roads and trails, five distances from 10K to a 35 mile ultra, and a course that changes direction each year.

Road marathon and half at Suffolk Running Centre using the Kirtling and Windmill routes. Aid stations every 10 km, parking included, and the event is cupless so bring a bottle or cup.

A long-established marathon in North Essex organised by Halstead Road Runners, set on scenic low-traffic roads and part of the Essex Road Running Championships. The event has a 500-runner limit, supports local charities and holds a course m..

A guided 30 km trail run in the Chiltern Hills from Tring, with checkpoints, trail technique instruction, a finisher’s medal and Trees not Tees certificate.

Off road 10 km, 5 km and family runs at Milton Creek Country Park on 9 May 2027 supporting The Oliver Fisher Special Care Baby Trust. Varied trail terrain, route maps and event medals are provided.

Trail races through Rathfinny Wine Estate with single 10.7 km and double 21.4 km loops, marked off-road terrain and chip timing. The carbon neutral event supports the WOLO Foundation and provides aid stations, recycled medals and parking ar..

A multi distance trail event around Bewl Water reservoir near Lamberhurst, Kent. Races include 50km, marathon, half marathon and 10km on wooded trails and country lanes with start and finish at the Visitor Centre.

A Pretty Muddy 5k obstacle course at Braunstone Park on 15 May 2027 combining grass and path with climbs, crawls and slides. Waves start every 15 minutes, participants must be 13 or older and there is a minimum fundraising target of £50.

Two day obstacle race weekend in Henley on Thames featuring Sprint, Super, Beast and kids races across historic town and riverside terrain.

A family friendly untimed inflatable obstacle run at Brands Hatch on 15 May 2027, offering lap based distances from 2.5k to 15k with music zones, on course hydration and a finisher medal for all participants.