Trail Running calendar near Chelmsford 2025-2026

We have found 305 Trailruns within 80 miles of Chelmsford. See below where and when you can find the races.

Take on a scenic 7.5 km trail loop around Westfield on Sunday 28 December, with fully marked, marshalled routes and tea and cake in the village hall after. Entries are limited to 50 so enter early for this friendly end of year challenge.

Join the Layer Twixmas Trail on 28 December for a self guided 5 to 6 mile trail run around Layer de la Haye. Enjoy a Twix, hot drink and cake, optional festive fancy dress with a cash prize and dog friendly fun.

The Christmas Charity Run at Rathfinny The event takes place on 28 December 2025 at Rathfinny Wine Estate, The Tasting Room, Alfriston, Polegate, BN26 5TU. The run is limited to 75 places and is open to local runners only. Part of the entry..

Finish the year with the River Thames Run, a six hour timed challenge along a flat, scenic out and back route beside the Thames. Choose a 3.28 mile lap, 5k, 10k or go further up to ultramarathon distance while enjoying club facilities.

January 2026

Start the new year on trails with the Knacker Cracker 10K around Box Hill, a scenic but challenging course that finishes at Box Hill Fort. There is a Nipper Knacker fun run for kids and a Knicker Knacker ladies prize adds extra fun.

Rhino Run in Wraysbury at Wraysbury Skiff and Punting Club is a 6-hour timed running event organized by Circuit Running. The course is an out-and-back with each lap about 3.28 miles. Runners can complete from 5k up to an ultra within the ti..

East Hanningfield Trail Marathon is a 95% off-road, circular trail race around the village of Danbury, starting and finishing at East Hanningfield Village Hall. It is described as a narrative race with no marshals or arrows, requiring compe..

Join the Penshurst Village Cross Country Run on Sunday 4 January 2026 for mud, hills and community spirit across scenic village trails. Choose a 5 mile race or a 5 mile canicross and enjoy a friendly morning for runners and dogs alike.

Guided 30 mile trail ultra from St Martha's Hill along the North Downs Way, over Box Hill and past Denbies, led by an experienced coach. Welcoming new ultra runners who can manage 22 mile training and hold about 10 min/mile.

Event overview Wild Running stages a night trail event at Denbies Wine Estate, Dorking, in the Surrey Hills. The course runs across muddy, rolling hills through the Denbies Estate and is marked for night navigation. Distances offered includ..

Run the G3 Surrey trail series at Newlands Corner, Guildford and Hound House Road on 10 Jan, 31 Jan and 28 Feb 2026. Choose 10km or 15km over scenic forest trails with hills, mud and tricky descents for a rewarding challenge.

Tackle the Country to Capital Ultra, a 43 mile point to point from Wendover to Little Venice as canal towpaths and country trails lead you into central London. This UTMB index race features live GPS tracking and an 11 hour cutoff.

The Northampton 10K is a well-organized running event held at Northampton Racecourse Park, featuring a 2.2 km start followed by three laps around the racecourse. The course is accurately measured and takes place on pathway terrain, offering..

Timed multi lap run at Brandon Country Park in Thetford Forest. Choose a four or six hour session and complete as many 5.3 km loops as you like. Aid station, finisher medal and virtual entries make this a scenic, flexible challenge.

Guided 10km trail run at Hankley Common with wide views and a stop at the Atlantic Wall replica. Enjoy a friendly group paced by an experienced coach with kit trials and optional post run refreshment.

Windmill Way Wander in Bury St Edmunds on 17 Jan 2026 offers road races from 5k to ultra through rolling Suffolk lanes and pretty villages. Limited to 300 runners, enjoy aid stations, parking and a bespoke finisher medal.

Arundel & SDW Winter Trails 2026 is a double gold-rated trail event along the South Downs, finishing in Arundel. Runners choose between a marathon along the South Downs Way from Heyshott to Arundel (featuring river runs, rolling fields, and..

Dirt Run is a trail running series across two rounds in Northamptonshire at Irchester in January and Brigstock in February. Tackle mixed trails and a notable hill, pick short or longer distances and earn a unique finisher medal.

Take on the Benfleet 15, a 15 mile multi terrain challenge at Hadleigh Country Park on 18 January 2026, with muddy off road trails, a sea wall stretch and Olympic mountain bike sections. Chip timing, a bespoke medal and event photos make it..

Take on a three hour trail challenge from Holmbury St Mary and complete as many 5 km laps as you can across scenic Surrey Hills trails and the climb to Holmbury Hill. Entry includes a bowl of chilli or curry and a headtorch is required.