Trail Running calendar near Welwyn 2025-2026

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 Winter Trail Run at Gatton Park on 22 February 2026 for scenic multi terrain 5K and 10K loops, plus a Canicross category. Expect a finisher medal, bag drop and refreshments, with prebooked parking helping to support Gatton Trust.

Run the North Downs Ridge 50k from Denbies near Dorking along the North Downs Way with a loop through Norbury Park. Expect rolling climbs, aid stations, UTMB index points and an eco wooden finisher medal.

Join Dirt Run, a two round multi terrain series in Northamptonshire offering 5 km to 15 km options at Irchester Country Park on 18 Jan and Brigstock Country Park on 22 Feb. Expect trails, a notable hill and a custom finisher medal.

The Terminator 2026 is a tough but rewarding 12 mile trail race around Pewsey, Wiltshire, mostly off road with muddy climbs and high point views. All finishers receive a unique T shirt and race village treats await.

Run Reigate Canicross & Trail at Gatton Park on 22 Feb 2026 offers scenic multi terrain 5K and 10K trail races plus a dedicated canicross. Chip timing, medals for humans and dogs and tasty treats for pups make it a fun day out.

Join a guided 10 km trail run through Thursley National Nature Reserve, across open heath, pine wood and the boardwalk voted Britain's Favourite Path. Enjoy a friendly group pace with dusk and headtorch evenings, kit trials and a possible p..

Join G3 no.3 at Newlands Corner, Guildford for a choice of 10 km or 15 km routes across Surrey countryside on Saturday 28 February 2026. Friendly, well marked courses with series entry options make this a perfect early season challenge.

Join a guided 30 mile South Downs Way ultra from Harting Down, ideal for first time ultra runners looking for a friendly, non competitive challenge. Savour rolling chalk hills, ancient yews at Kingley Vale and expert guided coaching along t..

Explore coastal trails around Chichester Harbour AONB with scenic 21 km and 16 km options that skim the foreshore and South Downs. Dog friendly and low elevation, ideal for runners and canicross pairs.

Chocothon is a friendly timed lap on a flat 5.3 km riverside towpath, letting you complete as many laps as you can within a seven hour window. Distances from 5 km to ultra, medals and aid stations make it perfect for all abilities.

Experience scenic trail running around Pitsford Water with 10k and half marathon distances on 1 March 2026 at Brixworth Country Park. Expect rolling trails, village views and marshaled support for an enjoyable spring challenge.

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.

Run the scenic Windsor & Eton 10km on Sunday 1 March 2026, a mixed terrain route along the Thames and Jubilee Rivers through Dorney and Eton Wick. Finish by Windsor & Eton Brewery for a medal and your choice of beer or soft drink.

Join a guided 10km trail run at Silent Pool near Guildford along the North Downs Way and past film locations from The Holiday and Bridget Jones Diary. Group pace, head torch and shoe trials, and a post run alcohol free beer add to the fun.

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.

Take on a scenic, strenuous trail from Helen Gardens Eastbourne across chalk and forest with stunning views of the Seven Sisters cliffs. Choose 10K, half, marathon or ultra on a marked and timed course with a finishers medal.

Thunder Races invites trail runners to scenic woodland and countryside routes at Harrold Odell Country Park in Bedfordshire on 7 March 2026. Choose 25 km or 50 km routes marked and supported with aid stations, medals and finishers goodies.

Brutal at Chawton is a raw trail run across muddy woodland, water filled craters and steep sided valleys with tight technical trails. Options for 5 km or 10 km include dedicated canicross waves so bring your dog and expect big challenges.

Run scenic laps along the Thames towpath in Walton on Thames at the Ladybird Run, on flat off road trails with timed entries or a one hour rock up and run start window. Pick 5 km to ultra distances and complete as many laps as you like with..