About This Event

The Centurion 100 Mile Grand Slam 2027 presents a formidable challenge for dedicated ultra-runners, comprising four distinct 100-mile races spread across the calendar. This ultimate test of endurance sees competitors tackle the iconic Thames Path 100, the undulating South Downs Way 100, the scenic North Downs Way 100, and the atmospheric Autumn 100. Successfully completing all four demanding events will earn participants the prestigious Grand Slam title, a testament to their exceptional grit and resilience. The series offers a diverse range of challenging terrain and routes, ensuring a comprehensive examination of a runner's capabilities throughout the year. Those eager to embark on this epic journey should consult the official event website for comprehensive information regarding entry fees and the registration process.

Staying overnight?

Hotels within walking distance of All Four 2026 100 Mile Events.

Frequently asked questions