Trail Running calendar near Welwyn 2025-2026

We have found 367 Trailruns within 80 miles of Welwyn. See below where and when you can find the races.

Join the Wessex Night League in Kings Worthy for a 60 minute touch free score orienteering across urban streets and wooded areas. Bring hi viz and lights; day entry allowed subject to limits and juniors under 16 must be accompanied.

Hit the trails at Stonor Park for The Maverick Original Oxfordshire on 29 November 2025, an acclaimed off road running festival from Maverick Race. Choose from 7 km, 11 km or 22 km routes and enjoy a spirited course with great atmosphere.

The Riverside Marathon & Half Marathon, organized by Phoenix Running, takes place in Walton on Thames, Surrey, along the scenic River Thames towpath. This UK Athletics certified event features flat, fast, and accurately measured courses wit..

Join a guided Box Hill Vertical KM group run near Dorking for a tough 12.5 mile route with about 1000 m of climb through woods, heath and open fields. Enjoy expert guidance, technical terrain and a social finish.

Maverick Dark and Maverick Original in Henley on Thames offer scenic off road trail races with multiple distances for all abilities. Expect muddy singletrack, rolling hills and a lively festival atmosphere for a fun day of trail running.

The Wallop is a scenic 21k timed trail race through Farleigh Wallop Estate, winding along narrow woodland paths, wide gravel tracks and open fields. Enjoy marshalled support, a bespoke finisher medal and post race mulled wine and mince pies..

Experience a sandy coastal run at West Wittering Beach with stunning views across the Solent, Selsey Bill and the South Downs. Choose from 5 km, 10 km or 15 km and bring your dog for canicross fun with medals and post race treats.

Join a guided 13 mile trail run around Guildford's Surrey Hills, visiting St Martha's Hill, Shere and the North Downs Way. Enjoy a friendly group pace, kit support and optional post run refreshments.

Run 26.3 miles over five laps around the scenic Colworth Estate near Sharnbrook on 30 Nov 2025. Open to solo runners and teams, this intimate trail and road loop has drink stations but is cup free so bring a bottle.

Join the Marton Mile on Sunday 30 November 2025 for a relaxed one mile walk jog or run along the flat traffic free Lias Line Greenway near Marton. This family and dog friendly community fundraiser supports Shelter and welcomes all paces wit..

Event overview The St Andrews Day Challenge is a timed trail event on 30 November 2025. Participants choose between a 6-hour or a 4-hour timed option and run as many laps of the circuit as they can within their chosen time. The course uses..

December 2025

Event overview Winter on the Downs is a pair of single-loop trail ultras around the trails of East and West Sussex. Both races start and finish in Helen Garden, Eastbourne. Distances offered: 55 miles 100 miles The route begins over Beach..

UTMB Index

Take on the Salisbury Plain Winter Edition on 6 December for a scenic, fully marked trail challenge over Half or Marathon distances. Enjoy well stocked aid stations, marshals and finisher medals as you tackle crisp winter terrain.

Scenic trail runs from Plumpton Racecourse across the South Downs with ridge top views to the sea. Choose 9, 12 or 22 km with chip timing, water stations and a finishers medal; plastic free event so bring a reusable cup.

Join a magical evening run through parkland past the illuminated Cowdray Ruins at the Cowdray Winter Night Run. Head torches are mandatory and there are 5 km and 10 km distances plus dog friendly canicross and kids races.

Join a regional colour coded orienteering event at Highwoods Country Park, Colchester on Sunday 7 December with courses for all abilities up to a 7.0 km Blue course. Enjoy woodland and grassland terrain, waterproof maps and a friendly vibe.

The Mince Pie 10 is a festive 10-mile race held in Peacehaven, East Sussex, organized by Seaford Striders. The multi-terrain course features about six miles of farm tracks and bridleways, with the remaining four miles on quiet roads, includ..

The Trifarm Winter 10k is the final round and championship decider of a four race trail series, mostly off road through woodlands near the river. Enjoy a scenic winter trail challenge on footpaths and bridleways with a friendly vibe.

Push your limits at ZigZag Bauble Bimble, a 4 or 6 hour timed multi lap running challenge at Ferry Meadows. Tackle a scenic mixed terrain loop for distances from 5 km up to marathon and ultra, with aid at base camp and a finisher medal.

Run a scenic 10 mile trail around Grafham Water, weaving through woodland, Dragonfly Pond and Sanctuary Bay before a final mile along the dam wall. Canicross runs in a separate wave so you can bring your dog on a lead.