Trail Running calendar near Harwell 2026-2027

A 9 km two-lap country park race in The Valley, Evesham on 24 June 2026. Series entry is available until 1 May 2026; canicross is permitted and the minimum age is 14 years.

A trail event on 24 June 2026 around the Malvern Hills offering 10 km and 5 km routes on mixed off road and tarmac terrain, with finisher medals, prizes, a 2 hour cut-off and on-site parking and refreshments.

A **10 km** off-road trail run at Trifarm near Boreham on 25 June 2026, run mostly on public footpaths and bridleways. The route is anticlockwise, finishes with a lap around the lake, and offers on-site parking and on-registration water.

Run the Seasons at Cowdray on 26 June 2026 offers 3km and 5km races plus a 10km with dog friendly CaniRun options. The event includes stacking medals, course maps, free photos and an on site BBQ and bar.

Complete three races over three days to achieve a full marathon distance at the Colworth Estate. This multi terrain event in North Bedfordshire offers distances of 5 miles, 8.1 miles, and a half marathon.

A seasonal trail running series at Cowdray Estate featuring 5km, 10km and 10 mile races across spring, summer, autumn and a winter night run, with a dedicated kids series and a summer event that includes a BBQ and bar.

A trail event at Hyde Hall Farm on 27 June 2026 with distances from 5k to ultra. Onsite parking, a lap aid station, baggage provision and event medals are included.

A one-day trail running event in Cranleigh, Surrey on 27 June 2026 with five routes from 5 km to 52 km across the North Downs Way and Surrey Hills, outposts on longer routes, GPX files and mandatory kit for the longest races.

Gravel Rush Run at Matterley Estate offers single loop off road races of 10 km and a 21 km half marathon across gravel tracks, grassy paths and woodland trails, with chip timing, a finishers medal and on site catering.

A family festival at Culden Faw Estate on June 27, 2026, focused on a children's obstacle course and a lively event village with food and activities. Race options include two youth OCR categories and a festival-only entry.

A muddy 5k obstacle event at Cheltenham Racecourse on Saturday 27 June 2026 featuring climb crawl and slide obstacles, staggered wave starts, a minimum fundraising target and on-site facilities including parking and toilets.

A 5 km obstacle course at Stanmer Park on 27 June 2026 featuring muddy climbs, crawls and slides across fields and woodland. The event is for ages 13 and over, has staggered wave starts, and a minimum fundraising target of £50.

A new hill race at the Tintern Village Fete covering 4.2 km with 215 m ascent. The route starts and finishes in the fete field, climbs via a stone staircase and forestry road, and returns along the Shorncliff Climbers Path.

RunThrough Marlow Trail Run on 28 June 2026 features off-road Half Marathon, 10K and 5K routes around the Thames Valley, with marked trails, chip timing, free photos and a themed medal.

A multi-distance trail running day at Salcey Forest near Northampton offering 10K, half marathon, marathon and 50 km on mostly hard-packed forest trails. The event is cupless, no dogs are allowed, and all finishers receive a medal and drink..

The Snickerthon offers 5k (ish), 10K (ish), half marathon and marathon options around Chasewater Country Park. The multi lap route uses paths and footpaths, includes aid stations and a finisher medal and may feature deer sightings.

A countryside trail run at 3 Brewers Brewery in Hertfordshire offering 10 km and 5 km options on mostly off road terrain. Finishers receive a medal, a pint cup and a free drink while the event supports local charity Earthworks.

A trail event at Housedean Farm in the South Downs offering a half marathon and a 10K over mixed gravel and trail terrain. Onsite camping and glamping are available and amenities include chip timing, aid stations and a finishers area.

Scenic 5K and multi terrain 10K courses run through Wrest Park and neighbouring farmland, plus children's fun races. The volunteer organised event offers medals, prizes and shares profits with local village groups.

A point to point *50K* trail ultramarathon along the Hangers Way from Alice Holt Country Park to Queen Elizabeth Country Park. The marked course offers aid stations, bag drop, medical support and optional coach transport to the start.