Trail Running calendar near Sunbury-on-Thames 2025-2026

We have found 427 Trailruns within 80 miles of Sunbury-on-Thames. See below where and when you can find the races.

Run the flat, riverside Ouse Valley routes in Huntingdonshire with marathon and half marathon options on grass, gravel and tarmac paths. Enjoy peaceful river views and fast courses suitable for trail runners of all levels.

Experience the Chiltern 50 from Henley Showground with looped 10 km, 25 km and 50 km trails, scenic climbs and on site camping. Fully supported with aid stations, GPS tracking and a finisher meal with medal and t shirt for all abilities.

UTMB Index

Join the Pumpkin Run at Bullbanks Farm for scenic traffic free courses through pumpkin fields and a playful corn trail. Choose 10K, 5K or a family 1K and enjoy medals, event village fun and autumn vibes.

Race on the Chase features marathon, half marathon and 10k routes across rolling chalk downland, woodland and ancient sites in Martin Down, finishing at Salisbury Racecourse. Every finisher gets a medal and the top three men and women win t..

October 2026

The South Downs 100 mile (Autumn Event) is a challenging single-loop trail race held in the scenic South Downs National Park, starting at Plumpton Racecourse in Lewes, East Sussex. Covering 100 miles with over 12,000 feet of elevation, the..

Run to the Sea Bournemouth on 3 October 2026 is a point to point 50 km ultra from Moors Valley to Hengistbury Head, pairing flat scenic forest trails with seafront running. Course is fully signed with feed stations, a finish medal and event..

Take on the scenic 50 km challenge through Epping Forest in London on 3 October 2026. Enjoy sweeping trails, leafy views and a rewarding long distance test for experienced runners.

Take on 25 km of scenic trails through Epping at the London EcoTrail, an eco focused run that blends challenge with beautiful countryside views. Perfect for trail lovers seeking a green, memorable race day.

Run under the stars on the South Downs at The Dark Downs, a dusk to dark looped event at Plumpton Racecourse offering 50k and Half Marathon distances. Enjoy rolling trails, reflective course markings and volunteer aid stations.

Run to the Sea Bournemouth is a scenic 50 km point to point ultramarathon that threads forest trails and coastal paths to a seafront finish at Hengistbury Head. Enjoy a fully signed route, regular feed stations and a bespoke medal on 3 Oct..

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Wild Run Cotswolds at Cornbury Park near Charlbury offers scenic, rolling trail loops from 10K to marathon plus a 360 timed challenge. Family friendly with a supporter zone, marked routes and regular aid stations.

Enjoy a scenic riverside run on the Thames Meander Autumn on 4 October 2026, a flat and fast towpath course with 10 km, half marathon and marathon options. Well stocked checkpoints and marshals keep you fuelled and supported.

Scenic Dovedale Dash takes runners through the valleys of the Dove and Manifold, including a crossing at the famous Stepping Stones. Around 1,200 join a 4.75 mile main race and a 1.25 mile kids run, with proceeds helping local causes.

Explore the Surrey Hills on a 30 mile guided group trail run from St Martha's Hill, taking in Denbies, Box Hill and scenic villages. Run together with an experienced coach in a supported, non competitive pace with a cake stop and great view..

Run the Kent Downs Ultra Challenge from a lively Maidstone basecamp with camping, transfers and an on site bar. Choose looped 50 km, 25 km or 10 km routes through the North Downs, past Blue Bell Hill and Leeds Castle for a scenic trail week..

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Tackle rolling climbs and sweeping Chiltern views at the Frieth Hilly 10 km and 5 km Run, set on mixed woodland paths and country roads. Expect a scenic but challenging route between Frieth and neighbouring villages.

The Autumn 100 is a scenic 100 mile trail ultramarathon along the Thames Path and Ridgeway around Goring, 17 October 2026. Enjoy four out and back spurs, 16 aid stations, pacers allowed for the final 25 miles and a 28 hour cut off.

UTMB Index

Tackle a scenic 12K (ish) off road course along bridle paths and the Imber Range with views of the Westbury White Horse on 18 October 2026. Limited to 200 runners, Redfish Events awards bespoke medals and prizes across age categories.

Beachy Head Marathon Weekend offers stunning coastal scenery and a variety of distances across two days, from 10k to ultra. Expect challenging hills, great support from marshals and aid stations, and a memorable autumn race near Eastbourne.

Take on the Thames Trail Ultra: a scenic point to point 47 mile run from Iffley to Henley along the Thames Path and Ridgeway, mixing towpaths and country trails. Well supported with checkpoints and live tracking.