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Trail Running Calendar near Farnham 2026-2027

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Explore the top trail runs near Farnham for 2026-2027! We've gathered 271 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

October 2026
Scenic out and back races along the Thames Path from Petersham & Ham Sea Scouts HQ to Barnes, offered as 10 km, half marathon and marathon options with staffed checkpoints and medical cover.
Thames Valley LDWA challenge walk in Marlow on 4 October 2026 offering 25 km, 40 km and 50 km routes with checkpoints, mandatory kit and entry limits.
A 7 hour Time Challenge along the River Thames with flexible distances from a 3 km minimum up to ultra and 50 km options. Finishers choose a medal from past events and have access to aid stations and a goody bag.
Timed trail event in the Forest of Bere using a 3.28 mile out and back lap with distances from 5 km to ultra. Aid station offers sweet and savoury food including potatoes and vegan options; 20% of proceeds support Forestry England.
Half marathon and 10 km races at RAF Greenham Common in Thatcham, Berkshire. The traffic free, flat course has water stations, free parking and a children's race paid on the day for £5; proceeds support New Life Special Care Babies.
A lap based Friday timed run on the Thames towpath offering distances from a single 3.28 mile lap up to ultra distances, with the ten pound charity entry supporting Rays of Sunshine and a special double sided medal.
Beat Box Hill Trails on 10 October 2026 at Box Hill, Surrey offers 21K, 31K and 50K marked trail routes across ridgelines, woodland and chalk climbs with marshal support.
Trail running in Hurtwood Forest near Guildford with 15 km and 21 km routes, on-site facilities, water stations and medals for all.
Trail races at Cowdray Estate on 10 October 2026 offering 10 mile, 10 km, 5 km and a new 3 km kids run alongside Cowdray Farm Shop Apple Day.
Four seasonal trail events at Cowdray Estate offering 3 km to 10 mile options, CaniRun and kids races with series scoring, prizes, linking medals and free photos.
A mixed-terrain 10 km and 5 km race around Frieth in the Chiltern Hills featuring woodland paths, country roads and notable climbs.
Community-supported trail runs at Old Basing offering 10K and 6K chip timed races plus a 2K fun run to raise funds for local schools.
Flat mixed trail races along the Basingstoke Canal and through Wellesley Woodlands with 10 km, 5 km and a 2 km fun run, chip timing and a collectable medal.
A lap-based out and back run along the Thames in Walton on Thames offering distances from a single 5.3 km lap up to ultra distances with a seven hour limit.
A monthly five mile run in Wimbledon organised by Thames H&H running club, held on the second Sunday of each month with online entries and published results.
Biweekly free Sunday morning trail runs from Surrey Trek and Run with varied routes and distances, limited to 10 places per leader.
A lap based Friday timed run on a flat 5.3 km out and back course along the river Thames, with distances from 5 km up to ultra. Both attended and virtual entrants receive a finisher medal.
A 100 mile trail race from Goring and Streatley using the Thames Path and Ridgeway in four 25 mile out and back spurs, with 16 aid stations and a 28 hour cutoff.
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