Trail Running calendar near Harwell 2025-2026

We have found 399 Trailruns within 80 miles of Harwell. See below where and when you can find the races.

The Cider 5K.ish is a one-lap, 5-kilometre trail run/walk set on Myncen Farm in Minchington, near Blandford Forum, Dorset. The undulating course takes you across fields, grass, wildflowers, crops and dusty tracks on private farmland with pe..

Run through scenic Wendover Woods with 5K and challenging 10K trail options plus a 1.5K accessible loop. Limited to 500 runners, with chip timing and a finisher medal for all.

The Cider Challenge Solo is a 12-hour trail-running event held on a privately owned farm in Dorset (Myncen Farm, Minchington, Blandford Forum, DT11 8DH). Designed for solo runners, with the option to enter as part of a team, participants ha..

Event overview The Apple Plod 10K.ish is a trail running event on Sunday, 19 July 2026, organised by Running Events Devon. The race distance is 10K and is described as undulating trail on a two-lap course. Participants may run or walk; ther..

The Bell Plod is a friendly, relaxed trail run/walk organised by Running Events Devon, held at Myncen Farm in Minchington, Blandford Forum, Dorset. The one-lap course runs on a privately owned farm, by permission of the owner, weaving throu..

ON TOUR - The Bumble Plod is a relaxed, family-friendly trail event organized by Running Events Devon. It takes place at Myncen Farm, Minchington, Blandford Forum, Dorset. The course is a single lap through privately owned farmland, includi..

Experience the Wye Valley Tunnel Run, racing through the atmospheric Tidenham Tunnel and scenic riverside and old railway paths. Distances suit everyone from a Colourbust family fun run to a full marathon, with trail charm and big event ene..

Enjoy scenic trails at Winwick Hall with 10k, 5k and a fun 2k kids run. Fully marshaled courses, medals, charity support and refreshments make it a great family day out.

Run the ATW St Albans Summer 10K on 19 July 2026 at Highfield Park for a chip timed 10 km along the Alban Way, with a free family fun run. Festival vibes with live music, kids activities, food stalls and a custom medal while supporting Alzh..

Experience a scenic loop around Aske Hall estate near Richmond on 23 July 2026, with 5 km and 10 km trail options. Limited to 200 entries, the mostly flat single loop winds through pasture and woodland for a relaxed but rewarding race day.

Join a friendly 7 hour timed run along the Thames at Wraysbury, with flat paved loops suitable for road shoes. Pick distances from a 3 km loop up to marathon and ultra, and enjoy a medal plus goody bag and riverside views.

Take on the Beacons Way Ultra, a 100 mile trail through the Brecon Beacons that climbs iconic summits such as Pen y Fan and the Black Mountains. Expect rugged scenery, self navigation and placed checkpoints for an adventure.

Run The Rings Marathon or 50K from Shoreham by Sea along riverside trails and the South Downs ridge for sweeping coastal views. Fully marked and chip timed, this scenic challenge offers bespoke medals and a lively finish.

Enjoy a scenic, flat trail run around Maidenhead Commons and Summerleaze Lake on Sunday 26 July 2026. Choose 5K, 10K or half marathon and earn a themed medal with free race photos, chip timed results and a lively event village.

August 2026

Join the North Downs 50 Ultra Challenge on Sat 1 Aug 2026 for scenic runs from Guildford across Surrey hills and the North Downs Way. Choose 10 km, 25 km or 50 km routes with full support, night markings and medical cover.

Run the Vanguard Way Marathon or Half on 2 August 2026 from Croydon along scenic Surrey and Sussex woodlands and ridges. Finishers receive a medal plus a goody bag with a race t shirt and snacks.

Tackle the MTC Cotswold Ultra, a 57 mile point to point along the Thames Path from Kemble to Oxford. Expect sparse support, stunning riverside scenery and a rewarding finish for seasoned trail runners.

Tackle the Thames on a four day 184 mile endurance race from the Cotswolds to Greenwich, 6 to 9 August 2026. Enjoy supported nights, strict pace cutoffs and stunning riverside scenery while earning UTMB points.

Run from Oxford to Henley along the scenic Thames Path in the MTC Oxford Ultra, a 49 mile point to point ultramarathon on 7 August 2026. Enjoy riverside views, timed checkpoints and a bespoke finisher medal with a choice of tech shirt mug o..

Scenic 7 hour timed run along the River Thames on 7 Aug 2026 lets you choose any distance from 3 km to ultra. Finishers get medals and distance pins, with aid stations, cafe and vegan goody bags.