Trail Running calendar near Harwell 2026-2027

We have found 488 Trailruns within 80 miles of Harwell. See below where and when you can find the races.

Run For Your Life on 2 May 2026 at Parliament Hill, Hampstead Heath offers 10 km, 5 km and a 2 km Fun Run on scenic trails past Kenwood House. Managed starts and medals welcome all while proceeds support Jubilee Hall Trust.

The Hurstbourne 5 is a five mile off road race through the North Wessex Downs. The route starts in Hurstbourne Tarrant and follows the Test Way. This volunteer run event donates all proceeds to local charities.

Explore the Cotswolds trails at the Tempo Trail Races. Choose from five distances including a new 50K ultra option. The event starts and finishes at the Ilmington Sports & Social Club.

Join a day of trail running at the Culden Faw Estate, featuring team relays, sunrise 5K/10K runs, and a downhill time trial. The course mixes gentle hills with a long descent through woodland tracks. Set up a base camp and enjoy chip timed..

A trail running event on the South Downs from Lancing Manor Leisure Centre on 3 May 2026, offering marathon, half marathon and a 5 mile trail. Entries support Ferring Country Centre and local Sussex charities.

The Box Hill Vertical KM is a guided 12.5-mile trail run with 1000m of ascent in the Surrey hills. It's a challenging, non-competitive group run exploring woodland and heathland. The event includes practical support and a potential post-run..

A spring trail running event through bluebell woodland near Manswood, Wimborne offering Half Marathon, 10K and 5K courses. Way marked routes feature aid stations, chip timing, finishers medals, trophies, an event photographer and a medic te..

Run your own distance along the scenic Stroud Waterways canal in this flexible timed event. Start when you like within a one-hour window and see how far you can go in seven hours. Every participant gets a finisher's medal.

Event Details The Marlborough Downs Challenge offers two off-road running events. Participants can choose a 20 mile or a 33 mile trail race. The distances are approximate. Course Information Both courses are mostly off-road, following sceni..

Enjoy a guided 5km trail run through the Chiltern Hills followed by a professional movement class to improve your mobility and trail technique.

Trail running festival around Winchester offering 14 mile, 19 mile, marathon and 50K ultramarathon routes on marked, marshalled trails with aid stations, bag drop and an option to plant a tree instead of a medal.

Take on the Freddo Mercury Rhapsody Run along a flat riverside towpath at Xcel SPORTS HUB, logging as many 5.3 km laps as you can within a relaxed 7 hour limit. Rock up in a 1.5 hour start window or request a time, with aid stations and opt..

The Devauden Races is an annual off-road charity event for the Severn Area Rescue Association. Runners and families can choose from 10k, 5k, 2.4k, or a 60m junior dash on the scenic trails of Chepstow Park Woods. The event starts and finish..

This spring trail race takes runners through the scenic and undulating Harewood Forest in Hampshire. Participants can choose a 5k, 10k, or canicross event on forest paths. The event supports local community groups and features a cupless pol..

Kick off the championship series with this special Spring trail run. The 15 km course is over 95% off-road and used only for this seasonal event. It starts and finishes at the scenic Trifarm lake.

The Chiltern Hills 100K is a 100-kilometre ultra marathon on 9 May 2026, traversing a scenic loop of trails through the Chiltern Hills with 1800m of elevation. This UTMB World Series Index Race offers fully marked routes, six stocked aid st..

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Run from Horsham to the Brighton seafront in this 50 km point-to-point ultramarathon. Choose the solo challenge or team up for a two-person relay across varied trails and coastal paths. The event offers full support with feed stations and t..

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Enjoy scenic off road racing through Collingbourne woods with a chip timed half marathon or 10 km at Crawlboys Farm in Ludgershall on 9 May 2026. Marked trails, aid stations, medals and lively support make this a must for trail fans.

The Run Rabbit Trail Festival offers trail running challenges over a weekend at Deene Park Estate. Runners can choose from 10k, 25k, or half marathon distances or combine all three into a 56k quest. The event features camping and entertainm..

Discover Goring Gap Trails near Reading in early May 2026, offering scenic trail challenges from a 6 mile walk with a river boat crossing to 52K and 50 mile ultras. Multi day camping adds a relaxed festival vibe for runners and walkers alik..

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