Trail Running calendar near Chelmsford 2025-2026

Join ATW Odyssey12 at Riverside Park in St Neots for a spirited multi terrain lap run as part of the First to Full Triathlon Festival. Run solo, with a pair, or in a team, enjoy lively spectator zones and earn a unique Odyssey medal.

SVP100 is a point-to-point ultramarathon along the Stour Valley Path from Newmarket in Suffolk to Brantham near Manningtree in Essex. The 102 km (63 miles) route is mainly trail (about 95%) with a modest elevation gain and loss (roughly +91..

Tackle the North Downs Way 100, a continuous 103 mile trail from Farnham to Ashford across the Surrey and Kent ridgelines with a 30 hour time limit. Limited to 250 starters and a Western States qualifier, it is a classic, scenic ultra.

Take on the 47 mile MTC Windsor Ultra along the River Thames from Henley to Kingston. Enjoy riverside views, checkpoint support and a bespoke finisher medal while you tackle this scenic endurance challenge.

Join the Mount Ephraim 10k at Mount Ephraim Gardens, Faversham on 09 August 2026 for an undulating 10k on quiet country lanes with stunning Kent countryside views. Enjoy a bespoke medal, photos and support Oasis Domestic Abuse Services.

Run 100k or 50k around Market Harborough in the Foxton Hound Ultra, with scenic trails through Foxton Locks, Naseby Battlefield and village lanes. Supported aid stations and guided recces make this a classic English ultra challenge.

The Black Bull 15 is a charity trail run held near the Black Bull pub in Chelmsford. It offers two distances: a 15-mile trail route and a 15km option for shorter, faster runs, jogs or walks. The course uses varied trail surfaces through par..

Join the Henfield Half Marathon on 16 August 2026 and start and finish at Henfield Leisure Centre. The scenic off road course follows riverbank and a disused railway with flint paths and stiles, and every finisher gets a medal.

Gosfield Backyard Ultra : event overview Gosfield Backyard Ultra is a last-man-standing running event held at Gosfield School, Halstead Road, Gosfield CO9 1PF, Essex, UK from 29 August 2026 to 31 August 2026. Entry is limited to 100 places...

Muntjac 15 links five woodlands via hilly single track and forest paths for a scenic but testing trail run. Join fellow runners on 30 August 2026 for a memorable off road challenge.

Run through Alexandra Gardens with views of Windsor Castle at the Windsor Trail Run on 30 August 2026. Choose a 10K or half marathon, enjoy chip timing, free race photos and a lively event village.

Take on the Woldingham Half or Full Marathon across scenic North Downs ridges, woodland and varied trail terrain with rewarding rolling climbs and countryside views. Finish with a finisher medal, race tee in your goody bag and post race sna..

Run into the sunset at Ickworth Park with 5 km and 10 km trail routes across limestone paths, woodland and meadows. Chip timed, scenic and family friendly, all finishers get a medal to celebrate the evening race.

Tackle the stunning South Downs Way from Eastbourne to Arundel at the South Coast Ultra Challenge, with distances from 25 km up to 100 km and single or two day formats. Expect coastal views, supportive aid stations, camping and categories f..

Run along the River Thames at Temple Island Meadows with half marathon, 10K and junior races supporting Royal Berks Charity. Enjoy mixed undulating trails, finisher medals, chip timing, free photos and a lively event village.

Join a guided 10 km trail run from Silent Pool near Guildford along the North Downs Way and Netley Heath into Shere. This relaxed group outing is led by an experienced coach and suits runners keeping a steady trail pace.

Run a scenic 50K along the Suffolk coast from Lowestoft to Aldeburgh, largely flat and UTMB World Series Index registered. Expect coastal views, four aid stations and a welcoming nine hour time limit.

Run along iconic Thames towpaths from Putney to Henley in the Thames Path Ultra Challenge, with distances from 10 km to 100 km across one or two days. Enjoy riverside scenery, generous support stations and a friendly festival atmosphere.

Run 4.167 mile loops each hour at High Lodge in Thetford Forest until one runner completes an extra lap. Chip timed main race has a £250 prize and free entry to the summer Back Yard Ultra.

Enjoy reservoir views and undulating wooded trails at Bewl Water Autumn, with distances from 10 km to a 50 km ultra to suit every runner. Detailed course guides, GPX routes and a route video help you prepare for this Runners World top 10 UK..