Guildford
Trail Running Calendar near Guildford 2026-2027
Explore the top trail runs near Guildford for 2026-2027! We've gathered 217 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2026
A riverside marathon and half marathon along the River Thames on an accurately measured UKA certified course. Multiple laps on a flat towpath route with medals for all finishers and virtual entries.
A guided 30 mile trail run from Haslemere that follows sections of the Serpent Trail and Sussex Border Path, aimed at runners attempting an ultra for the first time. Group pace, varied terrain, cost £55.
Join the Christmas Advent Run on Sunday 29 November in Walton on Thames for a festive riverside run. Tackle timed laps to suit you and enjoy optional medal and chocolate advent calendar plus a prize draw.
Trail runs of 10 km, 10 mile and half marathon on the Mapledurham Estate featuring muddy paths, woodland trails and finish line mulled wine and mince pies.
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 guided 12.5 mile trail run around Box Hill that gains about 1000 metres of elevation across woodland, heathland and open fields. Group pace with technical climbs and scrambling and a chance of an alcohol free beer at the finish.
A 50 km trail ultramarathon from Dorking along the Greensand Way through the Surrey Hills, with a 5 mile loop, marked and supported aid stations, electronic timing and a finisher medal.
A continuous 200 mile winter trail loop around the South of England on the North Downs Way, Vanguard Way, South Downs Way, Wayfarers Walk and St Swithuns Way.
Join the Christmas Jumper Friday Run on 11 December in Walton on Thames for a relaxed rock up and run along the riverside towpath. Pick 5k to ultra, run laps within a 7 hour window and earn a bespoke finisher medal.
A 100 mile winter point to point trail across the South Downs and North Downs from Amberley Museum to Juniper Hall with a 35 hour limit, three aid stations, crew and drop bag support, medical cover and a strict mandatory kit list.
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 dawn to dusk trail challenge at Box Hill where runners complete laps of a roughly 10 mile loop with about 2,400 ft ascent per lap; entries include insurance, medical cover and a finisher medal.
A traditional 3.5 mile Boxing Day run around Hindhead commons and the Devils Punch Bowl, with Mens, Ladies and a Drinking Run category. All profits support Holy Cross Hospital.
A looped trail event in Crystal Palace Park where runners complete 2.65 km laps within a 7 hour time limit. Distances range from 5 km to ultra and all participants receive a finishers' medal.
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.
A winter cross-country event at Butlers Lands Farm featuring water crossings, Roman Walls, fields and footpaths. Distances are 10K and 10 Mile with entry fees from £32 to £35; finish-line refreshments include mulled wine and mince pies.
January 2027
A challenging 10K trail race on Box Hill with steep climbs, rough trails, a water station at 6 km and a separate children s fun run.