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Trail Running Calendar near Greenham 2026-2027

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Explore the top trail runs near Greenham for 2026-2027! We've gathered 78 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

September 2026
Sep
13
Su

The Farnham Pilgrim Marathon

Trail Run Half Marathon Marathon
Experience a scenic trail marathon or half marathon through the Surrey Hills along the historic Pilgrims Way and North Downs Way.
Sep
19
Sa

Centurion Chiltern Wonderland 50

Trail Run UTMB 50K ITRA 3 50 mi
A single 50 mile loop through the Chiltern Hills with 5,600 ft of climb, five aid stations, full medical support and a 13 hour cut off.
Sep
20
Su

Longworth 10k

Trail Run 10 km
A countryside multi-terrain 10K in Longworth village with kilometer markers, water stations, a kids fun run, and entries limited to 200 runners.
Sep
26
Sa

Chiltern 50 Ultra Challenge

Trail Run UTMB 20K/50K 10 km 25 km 50 km
A Henley basecamp trail event with looped options of 50 km, 25 km and 10 km, covered rest stops, GPS tracking, medical support, camping and finish-line hospitality.
Sep
26
Sa

Oxford Greenbelt 10km

Trail Run 3 km 10 km
Three community races at Harcourt Hill, Oxford on 26 Sep 2026 with 10 km, 3 km and 1 km options. The 10 km is mostly off road and includes a section of the Oxford Greenbelt Way; medals and prizes are provided.
Sep
27
Su

Amport Trail Run

Trail Run 5 km 10 km
Trail races at Amport Cricket Club with 5k, 10k, 10 mile and canicross on marked multi-terrain routes, cupless stations, first aid and finish-line refreshments.
Sep
27
Su

The One On The Trail - Marlow

Trail Run 10 km Half Marathon
Trail run in Bisham, Marlow on 27 September 2026 with Half Marathon, 10k and 1k routes along the Thames and through woodland.
October 2026
Oct
4
Su

The Marlow Donkey

Trail Run 25 km 40 km 50 km
Walking routes of 25 km, 40 km and 50 km around the Hambleden and Stonor valleys from Marlow with checkpoints, on-route food and a finish badge.
Oct
4
Su

Greenham Common Half Marathon

Trail Run 10 km Half Marathon
Scenic half marathon and 10KM at RAF Greenham Common, family friendly and supporting New Life Special Care Babies.
Oct
11
Su

Frieth Hilly 5km & 10km

Trail Run 5 km 10 km
Road and trail races in the Chiltern Hills on 11 October 2026 offering 5 km and 10 km routes with woodland paths, country lanes and notable climbs.
Oct
11
Su

FOOBS Trail and Fun Runs

Trail Run 6 km 10 km
Trail and fun runs near Old Basing on 11 October 2026 with chip-timed 10K and 6K races plus a 2K family fun run supporting local schools.
Oct
11
Su

MacTuffX Swindon

Obstacle Run 4 km 8 km
MacTuffX Swindon on 11 October 2026 offers solo, doubles and relay fitness races with 10x400m and 10x800m formats at Foundation Park County Ground in Swindon.
Oct
11
Su

Rushmoor Wellesley 10k

Trail Run 5 km 10 km
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.
Oct
17
Sa

Centurion Autumn 100

Trail Run UTMB 100M ITRA 5 100 mi
A 100 mile trail race from Goring & Streatley using Thames Path and Ridgeway in four 25 mile out and back spurs, with 16 aid stations and a 28 hour cut off.
Oct
24
Sa

Thames Trail Ultra

Trail Run UTMB 50K 47 mi
A 47-mile point-to-point ultra from Iffley to Henley-on-Thames along the Thames Path with five aid stations, mandatory kit checks and live GPS tracking.
Oct
31
Sa

The Maverick Hampshire Dark Gravel

Trail Run 5 km 10 km 15 km
Night trail laps in Alice Holt Forest on 5 km circuits with 5 km, 10 km or 15 km options, one outpost per lap, free parking and no dogs allowed.
Oct
31
Sa

Brutal - Halloween @ Hogmoor

Trail Run 7 km 10 km
An evening Halloween run at Hogmoor with kids, canicross, 6.6 km and 10 km options, fancy dress encouraged, medals for finishers and on‑site refreshments.
Oct
31
Sa

Phoenix Running - Hampshire

Backyard Ultra 3 mi Half Marathon Marathon
A timed, lap-based run along the Itchen Way in Winchester with 2.62 mile loops, a seven hour limit, flexible start times, an aid station with vegan options, and a bespoke finisher's medal.
November 2026
Nov
7
Sa

The Maverick Dark Oxfordshire Trail

Trail Run 7 km 13 km 17 km
Night trail running at Stonor Park with three route distances, outposts on middle and long courses, no dogs and a cup-free outpost policy.
Nov
7
Sa

The Maverick Oxfordshire Trail

Trail Run 7 km 13 km 22 km
Three trail distances through Stonor Park and the Chilterns with marked courses, fuel outposts, on site facilities and notable gradients.
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