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Triathlon Calendar South East (England) 2026-2027

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Monthly updates for South East (England)

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Explore the best triathlons in South East (England) for 2026-2027! Our updated list features 45 exciting races across the region. Find your next race in South East (England) below and join the running community at these great events!

June 2027
Organised by the local club at White Oaks Leisure Centre on 13 June 2027, the event offers sprint, standard and aqua bike distances and is BTF sanctioned.
Multi-distance triathlon in Windsor with an open-water Thames swim, cycling past Windsor Castle and a finishing run through Windsor Great Park.
July 2027
A triathlon-style event in Winchester City with a 20 km bike leg, a 2 km kayak leg and a 5 km run on the Itchen Canal. Entries are available for individuals and relay teams and the event is run as not for profit.
September 2027
A 20 km swimrun on 5 September 2027 that mixes three river swims on the Thames with three trail runs through Wytham woodlands, starting at Eynsham Lock and finishing at Wytham Chalet, with three feed stations and a finish café.
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