100 Mile Ultra Marathons

Welcome to the GB Ultras 100 Mile Ultramarathon Race Series! Supported 100 Mile Ultramarathons taking you to fantastic trails in England, Scotland & Wales with incredible GB Ultras® Support at checkpoints and live online tracking from GB Race Tracker. Take on any of the races on their own, or take them all on for the Grand Slam!

All our 100 Mile events attain ITRA and UTMB Mountain Points on completion…

Days
Hours
Mins

Up Next is Chester Ultra® 100 Mile

Chester Ultra 100

13/04/2024
7th Edition | 100 Miles | 32 Hours | 1509m Elevation | 250 Places

£169
Ultra Scotland 100

08/06/2024
5th Edition | 106 Miles | 38 Hours | 4611m Elevation | 200 Places

£169
Beacons Way Ultra 100

27/07/2024
5th Edition | 100 Miles | 40 Hours | 6143m Elevation | BY APPLICATION ONLY

£169
Yr Wyddfa Snowdon Ultra 100

14/09/2024
6th Edition | 100 Miles | 42 Hours | 5788m Elevation | BY APPLICATION ONLY

£189

100 Mile Grand Slam

‘Simply’ take on all of the events above to secure your Grand Slam Trophy and entrance in to the GBUltras Hall of Fame.

Prefer A Longer Distance?
How About The RAS 215 Miles?