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Trail Running Calendar near Mortimer Common 2026-2027

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Explore the top trail runs near Mortimer Common 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.

December 2026
Timed Thames towpath run where participants choose lap distances on a 5.3 km out and back course and entry supports Rays of Sunshine Children's Charity.
A winter trail event on Salisbury Plain offering Marathon and Half courses, marked routes, stocked aid stations, marshal support and on-route medical cover.
A festive time challenge along the River Thames in Staines where runners choose distances from 3 km up to 50 km. The event is signed, offers medals and pins, aid stations and goody bags.
A Christmas timed run along the Thames in Walton on Thames with lap-based distances from a 5.3 km loop up to ultra and medal or no medal entry options.
Mince Pi Run on 13 December 2026 at Shalford Park, Guildford offers looped offroad races from 3.14 to 31.4 miles, a Pi marathon option and a one mile fun run shaped like the Pi symbol. The course runs along the water and results are posted online.
Join a festive Christmas run along the flat Jubilee River. Choose your own distance in this 6-hour timed event on a scenic towpath. All finishers receive a bespoke festive medal.
A timed festive event on the Itchen Way in Winchester with flexible rock up start times, a measured out-and-back course, lap options up to ultramarathon distance, and a bespoke finisher medal.
A 10 km trail run and Canicross 10 km on December 24th around Yattendon Estate with hilly woodland trails, a medal, mince pie and a pint cup included.
A 7 hour Time Challenge along the River Thames in Staines offering distances from 3 km up to 50 km, medal and goody bag, plus an optional Christmas dinner at The Last Hop.
A low key multi-lap half and full marathon along the River Thames in Walton on Thames on 28 December 2026. The UKA certified flat towpath course awards medals to all finishers and has limited places.
Winter X is a mid winter trail running event in Hampshire's Meon Valley offering 10 km, 30 km, 50 km and 70 km routes on public trails including sections of the South Downs Way. Checkpoints, marked routes and a rock memento are provided.
Trail event at Butlers Lands Farm with water crossings, Roman Walls and fields, offering 10K and 10 Mile options plus finish line mulled wine and mince pies.
Off road races at Longmoor across sand dunes, ponds and mud with single and two lap options and medals for all finishers.
A riverside 3.28 miles out-and-back event at Wraysbury offering distances from 5K to ultra and a six hour challenge, licensed by TRA and run under UKA rules.
Friday timed runs on a flat riverside 5.3 km lap with flexible entry options, charity allocation for the £10 run and commemorative finishers' medals.
Lap the Thames towpath in Walton-on-Thames with distances from a 5.3 km lap up to ultra plus flexible starts and medal or no medal entry options.
A guided 30 mile trail run from St Martha's Hill exploring the Surrey Hills and Box Hill with an experienced ultra runner and coach. Group pace, recommended 22 miles training, cost £55 and an alcohol free beer may be available.
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