Triathlon events in UK

16 upcoming triathlon events in UK.

Triathlon

ATW Odyssey Triathlon

8 Aug 2026

Riverside Park, Regatta Meadow, St Neots, Cambridgeshire PE19 7AB

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Triathlon

Big South East Swim & Aquathlon 5k

9 Aug 2026

Dartford, UK

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Triathlon

Big South East Swim & Aquathlon

9 Aug 2026

Dartford, Kent

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Triathlon

Wimbleball Lake Triathlon

30 Aug 2026

Wimbleball Lake, near Dulverton, Somerset

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Triathlon

Something Wild Festival - Rocky Horror SwimRun LONG (17K) Pairs

5 Sept 2026

Plymouth, UK

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Triathlon

Triathlon Y Bala

6 Sept 2026

Bala, Gwynedd

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Triathlon

Bridge August 2nd Triathlon

6 Sept 2026

Dartford, Kent

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Triathlon

Sundowner Triathlon

12 Sept 2026

Allerthorpe Lakeland Park, Melbourne Road, Pocklington, York YO42 4RL

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Triathlon

East Cheshire Junior & Sprint Aquathlon

13 Sept 2026

The King's School, Alderley Road, Prestbury, Cheshire. SK10 4SP

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Triathlon

Woking Autumn Triathlon & Junior Aquathlon

13 Sept 2026

Woking Leisure Centre, Woking Park, Kingfield Road, Woking, GU22 9BA

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Triathlon

IRONMAN 70.3 Weymouth

18 Sept 2026

Weymouth, Dorset

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Triathlon

IRONMAN 70.3 Weymouth

20 Sept 2026

Weymouth, Dorset

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Triathlon

Swim Long - Eton Dorney

20 Sept 2026

Edenbridge, Kent

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Triathlon

Hever Castle Triathlon & Multisport

26 Sept 2026

Hever Castle, Edenbridge, Kent

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Triathlon

Superfeet Sandman - Triathlon & Duathlon

27 Sept 2026

Llanfairpwllgwyngyll, Gwynedd

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Triathlon

London Aquathlon

31 Oct 2026

London

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