The Northumbrian
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Event overview
The Northumbrian is an endurance multisport event held at Kielder Water and Forest Park in Northumberland National Park. The 2026 edition is scheduled across 27–28 June 2026 and is described as the fifth edition. The event includes individual and team triathlon races plus trail runs and an aquabike race. The triathlon competitions form the British and English Middle Distance Triathlon Championships. The venue is based at Kielder Waterside.
Races and entry details
- Full Iron Distance Tri
- Half Iron Distance Tri
- Aquabike Half Distance
- 50K Ultra Trail Run
- 28K Trail Run
- Team Half Distance
- Team Full Distance
Triathlon and team entries require British Triathlon membership and a race licence; a single-use Race Pass may be purchased. Age restrictions apply: triathlon and team events require entrants to be 18 years and above. Trail runs specify minimum birth dates (for example, born before 28/06/2008 for the 50K event).
Entry fees shown on the event page include: Full £330, Half £215, Aquabike £165, 50K £65, 28K £40, Team Half £230 (per team), Team Full £350 (per team). Price validity dates are listed on the event pages. The aquabike listing shows registrations remaining as unlimited. Visit the organization's website for the most recent information.
