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Distance
100 Miles
Elevation
3,718M
Start Date
Mon, 26th Oct 2026
Location
Plumpton, East Sussex
Cut-off Time
34 Hours
Embark on an epic journey across England's newest National Park with the South Downs Way 100 Mile ultramarathon, proudly organised by UK Ultra. This legendary race, following the entirety of the historic South Downs Way, promises a relentless yet profoundly rewarding test of endurance amidst some of the UK's most cherished landscapes.
The South Downs Way 100 Mile ultra isn't just a physical challenge; it's a deep dive into quintessential English countryside, offering undulating chalk downland, ancient woodlands, and breathtaking views that stretch for miles.
With approximately 12,200 feet (3,718m) of ascent spread across the 100 miles, the course is relentlessly undulating but rarely features truly steep, prolonged climbs. Instead, runners will experience a constant rhythm of gradual ascents and descents, providing a unique challenge that demands consistent effort and strategic pacing.
UK Ultra is renowned for its well-organised events, and the South Downs Way 100 miler is no exception. Expect 12 well-stocked aid stations (checkpoints) strategically placed along the route and GPS tracking so your friends and family can follow your progress live.
This ultramarathon is a formidable undertaking, best suited for:
For definitive race dates, detailed course maps, entry information, and essential updates, always refer to the official UK Ultra website.
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Race Summary
Distance: 100 Miles
Elevation: 3,718M
Start Date: Mon, 26th Oct 2026
Location: Plumpton, East Sussex
Cut-off Time: 34 Hours
5 Points
Minimum Average Pace
The minimum average pace required to finish within the event's cut-off.
Per km: 12:41/km
Per mile: 20:24/mi
Please note: these are estimate calculations and don't account for any rolling checkpoint cut-offs.
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