The dirty reiverkielder forest, northumberland

Our selection of the best, fastest, toughest, quirkiest and most enjoyable UK races this month

25-26 JULY 2026 City racing for all levels. Places now at t100triathlon.com 7 DORNEY DUATHLON FEBRUARY (various distances) Dorney Lake, Windsor atwevents.co.uk 15 GRAVESEND CYCLOPARK WINTER DUATHLON (

Coastal views, hilltop vistas, verdant farmland and heather moors all wrapped up in an epic Scottish ride

SOUTHAMPTON MARATHON FESTIVAL This is not just about the marathon, it’s a festival with a running race for everybody, including a mile fun run, a 5K, 10K and a half – there’s even a team option. Expec

‘Believe it or not this was my first audax. I’ve been eyeing PBP [Paris-Brest-Paris, 1,200km] for decades but you have to do a series of audaxes to qualify, and there aren’t any organised audaxes in M

THE ORKNEYS