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Triathlons Found In Summer 2025

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Triathlons In Summer 2025

The most comprehensive list of Triathlons in Summer 2025. Discover, compare and book the best Summer 2025 Triathlons near you!

Find A Race is the UK's most popular event listings website, with over 3 million users a year using our database of over 2,500 events to discover, compare and book their next challenge.

Popular & Featured

July

Race Calendar: Triathlons Summer 2025

🚀Boosted

THE ROC ENGLAND

Ulverston, Cumbria
06 Sep 25
£240.00

Dorney Triathlon

Windsor, Berkshire
27 Jul 25
£60.00 - £122.00
4.6

Cowman Triathlon

Olney, Buckinghamshire
03 Aug 25
£63.00 - £136.50

Bishopton Triathlon

Bishopton lake, Stockton-on-Tees TS21 1EY
03 Aug 25
£47.97 - £85.11

Sri Chinmoy TRY A TRI beginner's triathlon 2025

Bristol, Avon
03 Aug 25
£20.00

Snowman Duathlon & Triathlon

Betws-y-Coed, Conwy Principal Area
03 Aug 25
£69.99 - £224.99

London T100 Triathlon 2025

London
09 Aug 25 - 10 Aug 25
£78.00 - £420.00

Dorney Triathlon

Windsor, Berkshire
09 Aug 25
£60.00 - £101.00
4.6

ATW St Neots Triathlon - Race3

Riverside Park, Regatta Meadow, St Neots, Cambridgeshire, PE19 7AB
10 Aug 25
£61.48 - £127.20

ATW Oundle Children’s Triathlon

Oundle School, Swimming Pool, Milton Road, Oundle, Northamptonshire, PE8 4AQ
17 Aug 25
£22.26 - £30.74

The Bedford Triathlon

Bedford, Bedfordshire
17 Aug 25
£70.00 - £100.00

York Triathlon 2025

York
17 Aug 25
£89.00 - £99.00
4.9

ATW Oundle Triathlon

Oundle School Swimming Pool, Milton Road, Oundle, Northamptonshire, PE8 4AQ
17 Aug 25
£61.48 - £104.94
4.8

Dorney Evening Triathlon

Windsor, Buckinghamshire
27 Aug 25
£60.00 - £80.00
5.0

ROADFORD LAKE TRIATHLON AUTUMN

Roadford Lake, Broadwoodwidger, Lifton, PL16 0RL
31 Aug 25
£60.42 - £296.80

Thorpe Park Sprint Triathlon

Chertsey, Surrey
31 Aug 25
£72.00 - £342.00
5.0

Brighton and Hove Triathlon

Hove, East Sussex
31 Aug 25
£21.00 - £169.00
5.0

Shropshire Triathlon 2025

Ellesmere, Shropshire
31 Aug 25
£99.00 - £219.00

Salty Sea Dog Duathlons & Triathlons - August

Bournemouth, Bournemouth, Christchurch and Poole
09 Aug 25
£45.00 - £70.00
4.6

Belvoir Castle Triathlon - Multi Sport Weekend

Grantham, Lincolnshire
31 Aug 25
£55.00 - £155.00
4.0
Showing 1-19 of 19 results

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