Marlborough
Triathlon Calendar near Marlborough 2026-2027
Monthly updates for Marlborough
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Marlborough for 2026-2027! We've gathered 8 exciting races in the area. Check out our detailed list below to find your next local race.
October 2026
Duathlon at Thruxton Race Circuit features sprint and standard distances on a smooth tarmac course and serves as a GB 2027 age group qualifier.
November 2026
A winter adventure race in Wiltshire combining trail running and mountain biking with map and compass navigation and flexible time-limited courses.
April 2027
A duathlon at Chieveley Village Hall on 18 April 2027 combining two 5 km runs with a 25 km bike leg and on-site parking and refreshments.
May 2027
Sprint triathlon and related races at Calne Community Campus on 2 May 2027 with pool swims, road cycling and mixed terrain runs.
Sprint-distance triathlon in Royal Wootton Bassett with a 400 m pool swim, 22 km bike and 5 km run; proceeds support Wiltshire & Bath Air Ambulance.
Monthly updates for Marlborough
Get new running races (and updates) in your inbox every month.
Standard distance triathlon at Cotswold Water Park with a 1500 m lake swim, 40 km bike and flat 10 km tarmac run plus an Aquabike option.
A sprint triathlon at Westonbirt House on 31 May 2027 featuring a 400 m pool swim, 23 km bike route past the Arboretum and a 5 km traffic-free run.
September 2027
A long-running sprint triathlon in Newbury with a 300 m swim, 22 km open road cycle and 5 km canal run; 40th edition on 5 September 2027.