Centurion Chiltern Wonderland 50

Chiltern Wonderland 50

The Chiltern Wonderland 50 is a single-loop, 50 mile (about 81 km) race on a route through the Chiltern Hills. The course has approximately 5600 ft (1700 m) of climb and descent and uses about 80% trail and 20% road. The race starts and finishes at Goring Village Hall, Goring-on-Thames, Oxfordshire, RG8 9AG. The route passes through riverside and Chiltern Way sections and visits named checkpoints and villages, including high points such as Christmas Common (about 800 ft). A course map and downloadable GPX file are available.

Race format and services

The event is held under a UK Athletics permit. The on-course cut-off is 13 hours. There are five staffed aid stations offering a range of food and drink with vegetarian, vegan and gluten-free options (examples listed include gels, electrolyte drink, water, soft drinks, fruit, sandwiches, snacks). Full medical cover is provided with a finish-line first aid team and at least one roving medical team on course. The course is fully marked; no navigation is required.

Entries open 11 October 2025 and close 31 August 2026. Minimum age is 20. Entry fees are £115 (UKA discounted) or £117 for unattached runners. Entrants must meet a qualification standard of a marathon distance completed within that race’s cut-off since 1 January 2021, or provide plans to qualify. All finishers receive a medal; prizes are awarded for top places and veteran categories. No pacers or crews are permitted. Finish-line bags are allowed; other drop bags are not. Mandatory kit is required and includes items such as a charged mobile phone, 1 L water capacity, survival blanket, waterproof jacket, whistle, primary and backup lights, long-sleeve emergency layer and a cup; a one-hour penalty may be applied for missing items. Visit the organization's website for the most recent information.