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Trail Running Calendar near Old Basing 2026-2027

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Explore the top trail runs near Old Basing for 2026-2027! We've gathered 174 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

March 2027
Twelve consecutive days of timed riverside running in Walton on Thames with multiple distance options, collectible daily lantern medals, finishers shirts, and a Double-Down option to run two half marathons each day.
A 50km trail ultramarathon through the Chilterns centered at Stonor Park, run as two 25km loops with 4000 ft of climb, five aid stations and full medical support. The event has a nine hour finish limit and medals for all finishers.
Point to point trail races on the South Downs Way offering a 50 mile ultra, a 50 km ultra and a marathon with marked routes, aid stations, coach transfers and an option to plant a tree instead of taking a medal.
Trail races of 21.4k, 16.1k and 10k through South Downs woodlands and estate grounds with chip timing, medals and on course support.
Trail running at Matterley Basin on 20 March 2027 with three route choices through South Downs chalk downland, woodland and ridgelines; marked courses, hydration outposts and free parking.
A guided trail half marathon around the Surrey Hills, about 13 miles from St Martha's Hill in Guildford, following parts of the North Downs Way and notable viewpoints. The run is social in format with a guided pace and evening options.
Seven consecutive days of timed running on certified out and back routes along the River Thames in Walton on Thames. Distances from 5 km to ultra are available and finishers earn daily mementos plus a seven day lantern medal set.
A two lap multi terrain 10 km trail race on Easter Monday around Mortimer Fairground and local woodlands, with a canicross option, chip timing, medal and free race photos. The undulating course is not suitable for pushchairs or wheelchairs.
April 2027
A 40 or 50 mile trail ultra along the Testway from Linkenholt to Totton in Southampton, with aid stations every 10 miles, marshals and medical support. A shuttle option is available for an extra £10 and there is a 14 hour cutoff.
Scenic mixed terrain races along the Thames at Remenham Farm in Henley on Thames. Options include a Half Marathon, a 10K and a Junior Race with marked trails, marshals, chip timing and post race goodies.
Races on the Thames Path at Wraysbury Skiff & Punting Club in Runnymede offering Marathon, Half Marathon and 10 km courses with marked turnaround points and stocked checkpoints.
A trail weekend at Cowdray Estate, West Sussex offering five distances from 12 km to 110 km, low technical difficulty, an event village with expo, and optional camping and race support.
Windsor 50 Ultra Challenge on 17 April 2027 offers 50 km, 25 km and 10 km looped routes from Windsor Racecourse with full support and marked trails.
Ibstone Circle on 18 April 2027 offers multi-terrain 5 km and 10 km routes through Wormsley Estate plus a Run in Colour for children aged 4 to 11. Fees vary by age and affiliation.
A multi-distance canal and riverside ultraseries based at Streatley-on-Thames, featuring TR250, TR150 and TR100 with GPS tracking, checkpoint support and required navigation using provided GPX files and maps.
A blindfolded navigation challenge in Winchester where participants are dropped at unknown locations and must find their way back on foot. Options include 6 miles for visitors and 10 or 15 miles; no maps or GPS and a sealed emergency bag is used.
An alternative to the London Marathon at Walton on Thames featuring a UKA certified 3.28 mile lap. Options include full and half marathon or a seven hour timed event, with a 150 mm finish medal for participants.
May 2027
A five mile off road race through woods and farmland around Hurstbourne Tarrant in the North Wessex Downs. Organised entirely by volunteers since 2009, the annual event donates all proceeds to local charities.
A guided 30 mile trail run from West Hanger, Guildford, combining North Downs Way and Greensand Way with on-route coaching and group pacing.
A 4 km multi terrain relay at Culden Faw Estate, Henley on Thames with solo, pairs and team formats plus a race village and on site camping.
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