50 Mile Ultra Marathons
Welcome to the GB Ultras 50 Mile Ultramarathon Race Series! Supported 50 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, take on 5 for the Slam, or take them all on for the Grand Slam!
All our 50 Mile events attain ITRA and UTMB Mountain Points on completion…
Up Next is Chester Ultra 50 Mile 2026
Chester Ultra 50
28/02/2026
10th Edition | 50 Miles | 17 Hours | 849m Elevation | ENTRIES OPEN
£119 **RACE FULL**
M2L Ultra 50
03/04/2026
10th Edition | 50 Miles | 14 Hours | 123m Elevation | **RACE FULL**
£119
Pennine Barrier Ultra 50
02/05/2026
9th Edition | 50 Miles | 18 Hours | 2593m Elevation
£119
Yr Wyddfa Snowdon Ultra 50
05/09/2026
8th Edition | 47 Miles | 21 Hours | 3254m Elevation
£119
Glasgow to Edinburgh Ultra
10/10/2026
16th Edition | 57 Miles | 16 Hours | 231m Elevation |
£119


Part Of The 50 Mile Grand Slam
Take on 5 of our 50 Mile Ultra Marathons for the Slam Medal or take on all 8 50 Mile Ultra Marathons for the Grand Slam & get in to the Hall of Fame.