07 Oct 2023

Gravel Duathlon

The Active Northumberland Kielder Run Bike Run has a new look for 2023! The Gravel Duathlon follows an almost entirely off-road course around northern Europe’s largest man-made lake, Kielder Water, in Northumberland.


10KM Run – 34KM Bike – 6.4KM Run*

The full event distance will remain the same, however for 2023 Transition 1 will relocate to Kielder Waterside to allow for easier sign-on before the event, and easier access to the course for spectators.

The first run stage takes you on Kielder 10K course around Bull Crag peninsula, arriving back to the start/finish area at Kielder Waterside for Transition 1.

The next stage sees you leave Kielder Waterside on your bike following the Lakeside Way up to Kielder Village, then taking in the North Shore on two wheels, covering 34km* you will return over the impressive Kielder Dam to the South Shore and Transition 2 on the approach to Bull Crag Peninsula. We would recommend mountain bikes, hybrid bike, gravel or cyclocross for the bike section. Traditional road bikes are not suitable.

The final stage is a 6.4km* run taking in the final stages of the 10k route and the stunning Bull Crag Peninsula and back along the Lakeside Way to the finish at Kielder Waterside.

*Distances are approximate


Enter as a team of three taking on the event in a relay. Give yourselves an inventive team name. All competitors will receive free transport to and from transition areas.

Event schedule

Start time: 


What’s included:

  • Medal, tech t-shirt and goody bag for all finishers
  • FREE Park & Ride system for all runners
  • Spectator pass £3 per day 
  • Secure baggage drop
  • Post race massage (additional cost)
  • Local produce and refreshments
  • Prizes for top 3 male and female and overall Team


Athletes must be confident they can complete the course in under 4.5 hours

Car Park Shuttles:

from 10.30AM

Please arrive at least 90 minutes before race start

Route Map

Previous Results