Taking place on SATURDAY 27TH JUNE – the day before the Triathlon events
Taking advantage of newly created trails at Kielder, the Northumbrian 50K Ultra and 28K trail runs debuted at the 2025 event. Starting at Kielder Waterside, you will join the triathlon run loop after completing a spectacular 25KM loop taking in the new Lonesome Pine trail and some of the best views of Kielder Water.
Get some extra support from your friends and family over the final two laps of bull crag, where you will pass through the event village before finishing alongside your fellow runners and triathletes at the lake’s edge.
A UTMB Index race contributes towards every Finishers UTMB Index in the corresponding category (20K, 50K, 100K or 100M) and gives privileged access to the UTMB World Series Events or Majors.
This event is licensed by the Trail Running Association and will adhere to UK Athletics rules.
CP One – 20km – 4 hours [12:45]
CP Two – 30km – 6 hours [14:45]
Finish – 50km – 10 hours [18:45]
Participants must be 18 years of age on race date to enter either the 28K or 50K events.