Trail Running calendar near Slinfold 2025-2026

Discover the Windsor 50 Ultra Challenge, a looped Great Park and Thames Path event offering 10 km, 25 km and 50 km options with Castle views and support along the route. Walk, jog or run from Windsor Racecourse and enjoy a lively festival a..

Tackle the Chiltern Ridge Classic 50K on 18 April 2026 along a scenic 51K Ridgeway route via Ashridge, Ivinghoe Beacon and Whiteleaf Hill. Limited to 400 runners, this UTMB race delivers big views, full support and a true trail challenge.

Take in Seaford seafront and rolling South Downs on the Martello Half Marathon, an undulating trail course that blends coastal views with countryside. Enjoy water stations, a bespoke medal and free event photos as you race.

Run the Thames Ring Series, a multi day trail loop based in Streatley on Thames that follows the river and canal towpaths on mostly flat, scenic terrain. Pick 100, 150 or 250 mile routes from 22 to 26 April 2026 for a true endurance fix.

Blindfolded and dropped at an unknown location, The Drop in Winchester challenges solo runners and teams to find their way back over 10 or 15 miles as the crow flies. No maps or GPS allowed, just navigation, grit and a taste for adventure.

The Ale Trail 15 mile run is a pub-led trail race in Alfriston, East Sussex, starting from the Ye Olde Smugglers Inne beer garden. The 15-mile course has a 4hr30min cut-off and pub checkpoints at The Hampden Arms and The Ram Inn, where runn..

Event overview The Chase Trail Run 2026 is part of the Garmin UK Trail Running Festival on 26th April 2026. The event takes place at St Giles House, Wimborne St Giles, BH21 5NA and is organised by ORA Events Limited. Entries close on 22nd A..

Run a flat, fast 5K or 10K along the River Adur and Downs Link at Adur Recreation Ground in Shoreham by Sea, passing the airfield and Toll Bridge. Chip timing and finishers medals add to this well supported riverside race.

Saturn’s Midweek Chasing Numbers 7-Hour Time Challenge is held at Wraysbury Skiff & Punting Club on the River Thames. The event is designed to be affordable and flexible, inviting all abilities to run or walk within a 7-hour window. Partici..

Enjoy a three day running festival over the May Bank Holiday across three Mid Sussex towns. Run single town races or combine stages into the Mid Sussex Marathon, with undulating multi terrain routes, medals, family fun and fancy dress.

Join Run Silchester on 2 May 2026 for 2.5, 5 and 7 mile trail runs around the Roman wall, ancient woodland and a 12th century church. Family friendly festival atmosphere with stalls, music and proceeds supporting local community causes.

Take on the iconic Thames Path 100 from Richmond to Oxford, 100 miles of scenic riverside trails and historic towns. Enjoy waymarked routes, plenty of aid stations and a supportive ultra atmosphere for a true point to point challenge.

Join a guided 30 mile trail run along the North Downs Way and Greensand Way led by an experienced ultra runner and coach in a supportive group run. Enjoy sweeping hilltop views, shoe demos and a possible alcohol free beer at the finish.

Experience the Isle of Wight Ultra Challenge from Chale, tracing dramatic coastal cliffs past the Needles, Cowes and Ventnor. Multiple distances, strong support and camping options welcome runners and walkers seeking a scenic big day or two..

Run a scenic woodland course at Culden Faw Estate on 3 May 2026 with solo, pair and team relays plus timed 5K, 10K and the Henley Downhill Time Trial. Expect gentle undulations, a climb before 3 km and a long downhill finish with chip timin..

The Bluebell Bash is a trail running event in Manswood, Wimborne, UK, organized by Tri-Counties Trail Running. It offers three distances—half marathon (13.1 miles), 10K, and 5K—with full accessibility for canicross. Runners traverse scenic..

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.

Take on the Three Forts Challenge across the South Downs with rolling hills and coastal views. Choose marathon, half marathon or 5 mile trail and even bring your dog, with net proceeds supporting local Sussex charities.

BigWayRound Winchester is a scenic trail run from 14 miles to a 50K ultramarathon across the South Downs and along the River Itchen, with chip timing and self seeded waves. Choose a finisher medal or plant a tree to celebrate your finish.

Enjoy spring trails at Harewood Forest in Hampshire with Muddy Runners, choosing from 5 km or 10 km routes across undulating woodland tracks. A friendly, scenic race perfect for trail newcomers and regulars alike.