Chiltern Ridge Winter 50K

Berkhamsted, United Kingdom • 1 Nov 2025

Event overview

The Chiltern Ridge Winter 50K is a single-loop trail race held in the Chilterns, with the start and finish at Berkhamsted Cricket Club. The next edition is on 1 November 2025. The event distance is 50K with approximately 800 m of elevation gain. The maximum field is 250 runners and the overall time limit is 9 hours. The race is licensed by the Trail Running Association and is listed on the UTMB World Series index. Entry fee is £75 (£73 for UKA affiliated runners); the minimum age to enter is 20. Dogs are not permitted.

Course, aid stations and logistics

The route follows Berkhamsted Common to Ashridge Estate, joins The Ridgeway National Trail through Aldbury and on to Wendover, then returns via the Chiltern Way and finishes back in Berkhamsted. Navigation is marked with orange arrows and ribbons; marshals will be positioned at road crossings and key points. Runners must carry a digital GPX of the route and a paper map is provided at registration.

There are three full checkpoints at Aldbury Sports Ground (18 km, WC), Runaway HQ Wendover (30.8 km, WC) and Wigginton (41.2 km). Each checkpoint supplies water, Coke, Precision Fuel & Hydration products (pre-mixed PH1000, PF30 gels and chews), snacks, flapjacks and fresh fruit. Required kit includes a mobile phone, waterproof jacket, warm hat and gloves, additional dry layer, head torch, GPX on device, refillable hydration (0.5 L min) and payment method. There is no parking at the venue; nearby public car parks and a train station a short walk away are listed. Visit the organization's website for the most recent information.

Race information

UTMB 50K
50 km
800 m+
50k Ultra
Visit the organization's website for the most recent information.
Trail runs nearby

Autumn 100 : event overview The Autumn 100 is a 100 mile (approximately 161 km) continuous trail race held on 18 October 2025 from Goring & Streatley on the River Thames, Oxfordshire. The route is four out-and-back spurs of about 25 mil..

Choose your distance on the day from 7 km up to a 40 mile ultra on scenic mixed trail and road loops around Chalfont Park. Drop bags, pacers and crew are welcome and there is an aid station plus a trained medic on site for support.

Tackle the Thames Trail Ultra, a scenic 47 mile point to point run from Iffley to Henley on Thames. Enjoy mainly off road riverside trails, friendly checkpoints and a welcoming finish with showers and hot drinks.

UTMB Index

Thames Path Trail Run : Windsor Racecourse, 26 October 2025 The Thames Path Trail Run takes place at Windsor Racecourse on 26 October 2025. The route follows sections of the Thames and nearby countryside. Distances offered: 21km 16km No do..

The ZigZag Catherine Wheel Canter is a unique running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Participants can choose from various distances including 5k, 10k, half marathon, full marathon, 50k ultra, or..

Run 50 miles on an athletics track at Fireworks 50, a small field limited to 50 entrants with festival vibes, music, free tea and cake and a bespoke medal. Enjoy traffic free laps, aid stations and fireworks as dusk falls.