Centurion Autumn 100
Goring, United Kingdom • 17 Oct 2026
Event overview
The Autumn 100 on 17 October 2026 is a 100 mile (161 km) continuous trail race based at Goring & Streatley, Oxfordshire (Goring Village Hall, RG8 9AG). The course comprises four 25 mile out-and-back spurs on sections of the Thames Path and the Ridgeway National Trails that all start and finish in Goring & Streatley. Terrain is listed as roughly 80% trail and 20% road, with total elevation gain given as about 5,000 ft (1,500 m). The overall time limit is 28 hours; runners may experience up to 13 hours of darkness during the race.
Logistics, support and rules
The event provides 16 fully stocked aid stations, course markings in addition to national trail waymarkers, and full medical support. Drop bags are accessible at Goring at miles 25, 50, 75 and 100 and must be under 30 litres. Pacers are permitted only from mile 75 for the final 25 mile leg and must join and run that entire leg; pacer handovers are only allowed at HQ in Goring. Crews are not permitted. Entrants must meet a qualifying standard: completion of a 50 mile race within 15 hours between 1 January 2021 and race day. Mandatory kit must be carried at all times, with a one hour time penalty for any missing item. The field size is listed as 250 starters and the entry fee is shown as £220 for UKA affiliated runners (£222 unaffiliated). Visit the organization's website for the most recent information.