1,465 upcoming races, from the big city starts to your own town's. Every date checked against the organiser. Your next race, seen from above.
Iconic mountain marathon through Snowdonias dramatic peaks
Runs the old railway line past Monsal Head viaduct
Beloved ultra tracing the Thames past rowing clubs and villages
Trail routes through a National Park steeped in Yorkshire heritage
Three hill summits in the Scottish Borders
One of the biggest off-road marathons in the UK across South Downs
A multi-day ultra along the entire Nidderdale Way
Laps of Battersea Park beside the Thames
Laps through Tentsmuir's coastal pine forest for 8 hours
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.