Centurion Chiltern Wonderland 50

Chiltern Wonderland 50 - event overview

The Chiltern Wonderland 50 is a single-loop 50 mile race through the Chiltern Hills, held on 19 September 2026. The course starts and finishes at Goring Village Hall, Goring-on-Thames, Oxfordshire RG8 9AG. The route covers about 5600 ft of ascent and descent, is around 80% trail and 20% road, and includes sections of the Thames Path, the Chiltern Way and the Ridgeway. The highest point on the course is Christmas Common at approximately 800 ft. The course is fully marked, and the event is run under a UK Athletics permit through the TRA.

Logistics and rules

Entries open 11 October 2025 and close 31 August 2026. Entry fees are listed at approximately £115–£117. Minimum age is 20 years. Entrants must meet a qualification standard: completion of at least a marathon distance within the cut-off time of that event between 1 January 2021 and race day. Places are allocated first come, first served.

There are 5 staffed aid stations with food and drink options including vegetarian, vegan and gluten-free choices; hot food and drink are provided at the finish. Medical cover includes a static finish team and roving teams on course; runners are advised to use emergency services (999) if needed. No pacers or crew are permitted; supporters are allowed only at designated locations. Mandatory kit is required (examples include a charged mobile phone, minimum 1 litre water capacity, survival blanket, waterproof jacket, whistle, primary and backup lights of at least 100 lumens, long-sleeved warm layer and a cup). A one-hour time penalty may be applied for missing mandatory items. Finishers receive a medal and prizes are awarded by overall and veteran categories. Route maps and GPX files are available for download. Visit the organization's website for the most recent information.