Dukeries 30 / 40

Ollerton, United Kingdom • 9 May 2026

The Dukeries 30 / 40 is an annual trail running event held in Nottinghamshire, starting and finishing at Walesby Sports & Social Club near Sherwood Forest. Offering two distances—30.8 and 40.8 miles—the race follows a clockwise circular route mainly on forest trails and footpaths. The scenic course passes through historic sandstone villages, Creswell Crags, Welbeck Estate, Clumber Park, and Thoresby Estate, with the 40-mile route including a visit to the famous Major Oak.

The event features well-marked trails, multiple aid stations, and a 10.5-hour cut-off time. It is designed for both newcomers to trail running and experienced ultra runners seeking a personal best. Walkers are not permitted. Visit the organization's website for the most recent information.

Race information

41 mi
Dukeries 40
31 mi
Dukeries 30
Visit the organization's website for the most recent information.
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