The Northumbrian
Kielder Forest
29 Jun 2025
Organised by
THE ULTIMATE TRIATHLON
Take on The Northumbrian—a true test of endurance set against the stunning landscapes of Northumberland. This full-distance triathlon challenges even the most experienced athletes with a 2.4 mile swim, a 112 mile bike ride, and a full marathon. Looking for a slightly shorter but still demanding challenge? The half-distance event offers the same incredible experience on a smaller scale. Or, take on the course as a team and share the achievement with friends. With breathtaking scenery and an incredible sense of accomplishment at the finish line, this is an event for those who thrive on pushing their limits. Are you ready to rise to the challenge?
Event Details
The ultimate endurance test, The Northumbrian, returns for its fourth edition on 29th June 2025, offering both full and half-distance triathlons set against the stunning Kielder Water and Forest. Take on a 2.4/1.2-mile swim, a 112/56-mile bike ride, and a 26.2/13.1-mile run through some of the UK’s most inspiring landscapes. Your entry includes The Northumbrian Cycling Jersey, swim cap, electronic chip timing, on-course support and nutrition, medal, finisher’s goody bag, and parking. Limited spots available, don’t miss your chance to conquer this challenging and unforgettable event.
Want to find out more about this event?
This event is presented by Titanium Race Timing on behalf of one of our valued customers. For further detailed information, please refer to the links provided below.
View Event WebsiteEvent Features
Event Location
The event HQ is located at Kielder Waterside, Kielder Forest, Hexham, NE48 1BT
