0063
Triathlons Found In Summer 2025
View all ↓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
Race Calendar: Triathlons Summer 2025
🚀Boosted
The Northumbrian Full & Half Iron-Distance Triathlon & Trails Runs
Hexham, Northumberland
29 Jun 25
£40.00 - £350.00
5.0
Pendle Pool Triathlon powered by Fort Vale
West Craven Sports Centre, Kelbrook Rd, Barnoldswick BB18 5TB
01 Jun 25
Free - £40.00
Henley Triathlon 2025
Henley-on-Thames, Oxfordshire
01 Jun 25
£89.00 - £99.00
Staffordshire Middle Distance Triathlon & Running Festival
Walsall
01 Jun 25
£30.00 - £182.00
ATW Grafman Middle Distance Triathlon
Grafham Water Visitor Centre, Marlow Park, Grafham, Huntingdon, Cambs, PE28 0BH
01 Jun 25
£153.70 - £197.16
5.0
Uppingham Pool Triathlon
Oakham, Leicestershire
01 Jun 25
£20.00 - £60.00
Dorney Triathlon- June 2025
Windsor, Berkshire
07 Jun 25
£60.00 - £101.00
4.6
Château de Chantilly Triathlon & Duathlon
Chantilly, Oise
07 Jun 25 - 08 Jun 25
£35.00 - £245.00
Offer
10% OFF
Slateman Triathlon & Duathlon
Caernarfon, Gwynedd
08 Jun 25
£85.99 - £399.99
The WMD TRIATHLON
Weymouth College, Cranford Avenue, Weymouth, DT4 7SW
08 Jun 25
£85.11 - £154.10
5.0
The One on the River - Marlow
Marlow, Buckinghamshire
08 Jun 25
£25.00 - £110.00
5.0
Eastbourne Triathlon
Eastbourne, East Sussex
08 Jun 25
£16.00 - £169.00
4.5
Salty Sea Dog Duathlons & Triathlons - June
Bournemouth, Dorset
14 Jun 25
£45.00 - £70.00
4.6
Royal Windsor Triathlon
Windsor, Berkshire
15 Jun 25
£87.00 - £192.00
Alderford Triathlon 2025
Whitchurch, Shropshire
15 Jun 25
£99.00 - £119.00
5.0
Plymouth Triathlon
Mount Edgcumbe, Cremyl
15 Jun 25
£25.44 - £127.20
ATW Stewartby Lake Triathlon & Aquabike
Stewartby Lake, Green Ln, Bedford MK43 9LY
15 Jun 25
£72.08 - £127.20
The One for the Planet powered by Climategames
Windsor
15 Jun 25
£25.00 - £75.00
ALLERTHOPRE TRIATHLON
Allerthorpe Lakeland Park, Melbourne Road, Pocklington, York YO42 4RL
21 Jun 25
£45.00 - £78.00
Cholmondeley Castle Triathlon & Multisport
Malpas, Cheshire, Cheshire East
21 Jun 25 - 22 Jun 25
£35.00 - £245.00
Offer
10% OFF
Menai Holidays ABERSOCH Triathlon
Abersoch, Gwynedd
21 Jun 25
£85.00 - £90.00
Darwen Triathlon, Aquathlon & Runs
Darwen, Lancashire
22 Jun 25
£24.00 - £67.00
4.0
The Cardiff Triathlon & Duathlon
Cardiff
22 Jun 25
£78.99 - £229.99
Swim Bike Run
Herne Bay, Kent
28 Jun 25
£20.00
UK Ultimate Triathlon 2025
Ellesmere, Shropshire
29 Jun 25
£105.00 - £349.00
5.0
English Riviera Triathlon
The Kings Drive, Torquay, Devon, TQ2 5JE
29 Jun 25
£31.80 - £85.86
Arrow Valley Sprint Triathlon
Redditch, Worcestershire
29 Jun 25
£89.00
Thorpe Park Sprint Triathlon
Chertsey, Surrey
29 Jun 25
£67.00 - £322.00
The Northumbrian Full & Half Iron-Distance Triathlon & Trails Runs
Hexham, Northumberland
29 Jun 25
£40.00 - £350.00
5.0
Dorney Evening Triathlon
Windsor, Buckinghamshire
02 Jul 25
£60.00 - £80.00
5.0
ATW Odyssey Triathlon
Riverside Park, Regatta Meadow, St Neots, Cambridgeshire, PE19 7AB
05 Jul 25
£164.30 - £312.70
The FixAddiction Triathlon
Windsor, Buckinghamshire
05 Jul 25
£60.00
ATW St Neots Triathlon - Race 2
Riverside Park, Regatta Meadow, St Neots, Cambridgeshire, PE19 7AB
06 Jul 25
£61.48 - £127.20
ATW Bristol Triathlon
Brunel Lock Rd, Cumberland Basin, Bristol,
06 Jul 25
£79.50 - £132.50
Conquer The Chilterns Triathlon
Henley-on-Thames, Oxfordshire
12 Jul 25
£68.00 - £108.00
Salty Sea Dog Duathlons & Triathlons - July
Bournemouth, Bournemouth, Christchurch and Poole
12 Jul 25
£45.00 - £70.00
4.6
Upton Tri + Duathlon
Worcester, Worcestershire
12 Jul 25
£50.00 - £85.00
Dorney Triathlon
Windsor, Berkshire
13 Jul 25
£60.00 - £101.00
4.6
The One on the River - Marlow
Marlow, Buckinghamshire
13 Jul 25
£25.00 - £110.00
5.0
Belvoir Castle Triathlon & Mulitsport
Grantham, Belvoir, Leicestershire
19 Jul 25 - 20 Jul 25
£35.00 - £245.00
5.0
Offer
10% OFF
Birmingham Triathlon 2025
Sutton Coldfield, West Midlands
19 Jul 25
£99.00 - £119.00
Showing 1-40 of 63 results