Trail Running calendar near Sudbury 2025-2026

We have found 270 Trailruns within 80 miles of Sudbury. See below where and when you can find the races.

The Pre Halloween Coffee and Cream 10k is a night trail running event organized by Multisport-Management. Scheduled for October 30, 2025, this 10-kilometer race offers participants a unique nighttime trail experience just before Halloween. The event is designed to combine the thrill of trail running..

November 2025

The Chiltern Ridge Winter 50K is an autumn/winter trail ultra marathon held in the Chilterns, starting and finishing at Berkhamsted Cricket Club. The 50-kilometer looped course features 800 meters of elevation gain and showcases scenic woodland trails and stunning views along The Ridgeway National T..

The Brewery Trail Run is a 10km (6 miles) trail running event held in the scenic Chiltern Hills near Tring, just 40 minutes northwest of London. Suitable for all abilities, the course features some hills with guided support from experienced trail runners. After the run, participants enjoy a private..

The Fireworks 50 is a 50-mile running event organized by Zig Zag Running, held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Now in its fourth year, this race takes place on a traffic-free athletics track, offering a safe and controlled environment with no risk of getting lost. Th..

The Catherine Wheel Canter, organized by ZigZag Running, is a unique track running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Participants can choose from distances including 5k, 10k, half marathon, full marathon, 50k ultra, or a 6-hour challenge, all run on a traffi..

The Winter Warrior 50km Ultra is a trail ultramarathon held on November 1, 2025, starting in Trowse, Norwich, and finishing in Diss, following the scenic Boudicca Way. This well-marked 50km course passes through several villages, offering a beautiful yet potentially challenging winter running experi..

The Wendover Woods Marathon, Half Marathon, and 10k is a scenic running event set in the picturesque Wendover Woods, Buckinghamshire. Participants can choose from multiple race distances, including a marathon, half marathon, 10k, and a junior run, all featuring a challenging multi-terrain course wit..

Tunnel Vision in Market Harborough is a unique 5-mile out-and-back running event featuring both a Night Run and a Dawn Run. The course includes a memorable passage through the 422-meter-long Oxendon Tunnel, an old railway tunnel that is pitch black but mood-lit for the race, requiring runners to use..

Enigma Fireworks is a running event taking place on November 7th and 8th, 2025, at Caldecotte Lake in Milton Keynes. The event features both a marathon and a half marathon on each day, with participants completing scenic laps around the lake. Runners can expect a supportive environment with race bri..

The Druid's Challenge is an 83-mile (136 km) ultra marathon held over three days in November, traversing the historic Ridgeway in the UK. Participants experience stunning ancient landscapes, rolling chalk downland, woodlands, and notable monuments such as Stone Age barrows and Iron Age forts. The ev..

UTMB Index

The Dirt Half Challenge is a popular half marathon trail race held in Leighton Buzzard, Bedfordshire. The course features a scenic and challenging route that includes an anti-clockwise lap of Tiddenfoot Waterside Park, a stretch along the picturesque Grand Union Canal towpath, climbs through beautif..

The Remembrance Day Run - South is held in Surrey, at the Wraysbury Skiff and Punting Club by the Riverside in Egham. This 7-hour time challenge allows participants to run a minimum of 5km, with laps of 7km (4.37 miles) along a scenic course beside the River Thames. The route is well-marked and feat..

Remembrance Sunday 2025 is a unique running event scheduled for November 9, 2025, in Brightlingsea, Essex. Participants can engage in a traffic-free, looped trail course, with options to run a marathon or half marathon within a six-hour time limit. The event features an 11 am silence to honor milita..

The Canvey Island Trail Run will take place in Canvey Island on Sunday 9 November 2025.

The Run Henham event offers 10km, 5km, and 1km races set within the picturesque Henham Park in Suffolk, near Southwold. The course features a single lap of light trail terrain, allowing runners to enjoy the park's autumn scenery. Entry fees include chip timing and a bespoke race medal, with optional..

The Centurion Wendover Woods 50 is a challenging 50-mile ultramarathon held entirely within Wendover Woods in South East England. The race consists of five 10-mile loops on forest trails featuring a mix of wide, soft paths with runnable climbs and descents, alongside steeper, more demanding sections..

The Rugged Radnage 10K Run, held in the Chiltern Hills near Radnage village, offers a challenging mixed-terrain course featuring roads, trails, footpaths, woods, and fields with notable ascents and descents. The event includes both 5K and 10K distances, with the 5K covering half of the 10K route. It..

The 5th Sundon Saunter is a walking and running event held in Barton-le-Clay, UK, on November 16, 2025. Participants can choose from three distances: 13 miles (walkers only), 18 miles, and 27 miles, passing through undulating countryside, woods, fields, tracks, and some roads, offering scenic views..

The Dormouse Challenge is a 6-hour running event held at the award-winning Salcey Forest near Northampton, England. Participants run multiple laps of a 3.5-mile off-road loop through well-maintained forest paths, with terrain consisting mainly of crushed stone and forest floor, offering a natural tr..

The Petzl Night Trails 10K at Salcey Forest is a unique night-time trail running event held near Northampton. Participants run a fully marked, two-lap 10-kilometer course on crushed stone paths through the flat woodland of Salcey Forest, guided only by their head torches. The event emphasizes the us..