Got your mandatory kit sorted?
Browse the ultra runners' kit list for all your essential gear.
🎉 New Kit List Available 🎉 - View Here
Distance
100 Km
Elevation
3,451M
Start Date
Sat, 25th Jul 2026
Location
Brecon Beacons
Cut-off Time
24 Hours
Running an ultramarathon through the Brecon Beacons is a journey for the senses, and the Beacons Way Ultra 100K is one of the most compelling ways to experience it. This isn't just a race; it's a point-to-point expedition across the heart of Wales' most dramatic mountain range. You'll be following the full length of the Beacons Way trail and it's a route that demands respect.
The race starts in Llangynidr and heads west, taking you through a landscape that feels ancient and untamed. The first big challenge lies in the Black Mountains, where a series of ascents and descents set the tone for what's to come. This isn't just about covering distance, the course throws in a significant amount of climbing, around 11,300 feet in total, so your legs will get a proper workout from the very beginning!
As always, the support from GB Ultras is top-notch, with well-stocked checkpoints every so often to keep you going.
With a generous 24-hour cut-off, this ultra marathon is a true test of endurance, self-reliance and mental grit. It's a fantastic choice for anyone looking for a mountain ultra that truly feels like a pilgrimage through the Brecon Beacons National Park.
For full event details, including registration, please visit the official GB Ultra website.
Browse the ultra runners' kit list for all your essential gear.
Explore ultra kit List
Race Summary
Distance: 100 Km
Elevation: 3,451M
Start Date: Sat, 25th Jul 2026
Location: Brecon Beacons
Cut-off Time: 24 Hours
4 Points
Minimum Average Pace
The minimum average pace required to finish within the event's cut-off.
Per km: 14:24/km
Per mile: 23:10/mi
Please note: these are estimate calculations and don't account for any rolling checkpoint cut-offs.
Don't Miss Out!
Join the GB Ultra Runner newsletter for fresh event updates, gear reviews, ultramarathon news, and special giveaways.