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 14 exciting races in the area. Check out our detailed list below to find your next local race.
November 2026
A winter score format event in Wiltshire combining trail running and mountain biking with map and compass navigation and bike hire available from £42.
April 2027
A classic run, bike, run duathlon on 18 April 2027 around Chieveley and the West Berkshire downs, with two 5 km runs and a 25 km bike leg.
May 2027
Sprint triathlon and related multi-discipline races at Calne Community Campus on 2 May 2027, with electronic timing, pool swim using a Smart Start System, and a 1.5 km fun run.
Sprint triathlon in Royal Wootton Bassett on 9 May 2027 with a 400 m pool swim, 22 km bike and 5 km run; 2027 profits go to Wiltshire Air Ambulance.
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.
Monthly updates for Marlborough
Get new running races (and updates) in your inbox every month.
A four-race evening triathlon series at Lake 62, Ashton Keynes, featuring swim, bike and run options, electronic timing, medals and series prizes.
Sprint triathlon, duathlon, aquabike, aquathlon and open swim at Lake 62 on 29 May 2027, with camping, electronic timing and bespoke finish medals.
Aquathlon at Lake 62 in Ashton Keynes with lake swims and several youth distances plus a 1.5 km family fun run.
A sprint triathlon at Westonbirt House on 31 May 2027 featuring a 400 m pool swim, 23 km bike past the Arboretum and a 5 km traffic-free run.
June 2027
Multisport races at Lake 62 in Ashton Keynes include triathlon, duathlon, aquabike, aquathlon, a new 1.5 km swim and a free family fun run.
September 2027
A multi-discipline event at Lake 62 on 4 September 2027 featuring triathlon, duathlon, aquabike, aquathlon, a 1500m swim and a 1.5km fun run.
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.
Triathlon at Lake 62, Ashton Keynes with private lake swims, road cycling and venue runs, offered as team relays or an individual super sprint.
October 2027
Duathlon at Thruxton Race Circuit with standard and sprint formats on a wide smooth tarmac circuit, spectator facilities, prebooked motorhome parking and volunteer marshalling.