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Triathlons Found In & Near London
View all ↓Triathlons | London | 2026 - 2027
The most comprehensive list of Triathlons in and near London. Discover, compare and book the best London Triathlons!
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Race Calendar: Triathlons In & Near London
Woking Spring Triathlon & Junior Aquathlon
Woking Leisure Centre, Woking Park, Kingfield Road, Woking, GU22 9BA
Sun 26 Apr 26
£20.00 - £74.50
Dorney Lake Triathlon - May
Windsor, Berkshire
Sat 02 May 26
£60.00 - £122.00
4.6
2026 Tonbridge Triathlon
Tonbridge, Kent
Mon 04 May 26
£50.00 - £60.00
The All Nations Triathlon
Windsor, Berkshire
Sat 09 May 26
£60.00
4.5
HSV Sprint Triathlon
Hatfield Sports Village, De Havilland Campus, Hatfield Business Park, Mosquito Way, Hatfield AL10 9EU
Sun 10 May 26
£46.64 - £51.94
Marlow Triathlon
Marlow, Buckinghamshire
Sun 24 May 26
£72.00 - £152.00
Dorney Lake Evening Triathlon - May
Windsor, Berkshire
Wed 27 May 26
£60.00 - £80.00
5.0
One on the River - Marlow - May
Marlow, Buckinghamshire
Sun 31 May 26
£26.68 - £117.37
Henley Triathlon 2026
Henley-on-Thames, Oxfordshire
Sun 31 May 26
£89.00 - £99.00
4.3
Dorney Lake Triathlon - June
Windsor, Berkshire
Sat 06 Jun 26
£60.00 - £122.00
4.6
One for the Planet - Dorney
Windsor, Berkshire
Sun 14 Jun 26
£26.68 - £85.40
Royal Windsor Triathlon
Windsor, Berkshire
Sun 14 Jun 26
£87.00 - £192.00
Dorney Lake Evening Triathlon - July
Windsor, Berkshire
Wed 01 Jul 26
£60.00 - £80.00
5.0
The FixAddiction Triathlon
Windsor, Buckinghamshire
Sat 04 Jul 26
£60.00
5.0
The Bridge Triathlon
The Bridge, Dartford, DA1 5PR
Sun 05 Jul 26
£47.26 - £94.32
Dorney Lake Triathlon - July
Windsor, Berkshire
Sun 12 Jul 26
£60.00 - £122.00
4.6
One on the River - Marlow - July
Marlow, Buckinghamshire
Sun 12 Jul 26
£26.68 - £117.42
Castle To Coast Triathlon
Dorney Lake,
Sat 18 Jul 26
£265.00 - £293.00
Marlow Triathlon
Marlow, Buckinghamshire
Sun 19 Jul 26
£72.00 - £152.00
The Bridge Childrens Triathlon
Dartford Bridge
Sun 19 Jul 26
£27.39 - £36.81
Dorney Lake Triathlon 26th July
Windsor, Berkshire
Sun 26 Jul 26
£60.00 - £122.00
4.6
Guildford Triathlon & Kids Races
Guildford, Surrey
Sun 26 Jul 26
£27.00 - £67.00
One on the River - Henley - July
Henley-on-Thames, Oxfordshire
Sun 26 Jul 26
£26.68 - £117.42
Bridge August 2nd Triathlon
Dartford, Kent
Sun 02 Aug 26
£68.17
Dorney Lake Triathlon August
Windsor, Berkshire
Sat 08 Aug 26
£60.00 - £122.00
4.6
London T100 Triathlon 2026
London
Sun 09 Aug 26 - Mon 10 Aug 26
£78.00 - £438.00
Thorpe Park Sprint Triathlon
Chertsey, Surrey
Sun 23 Aug 26
£87.00
5.0
Dorney Lake Evening Triathlon - August
Windsor, Berkshire
Wed 26 Aug 26
£60.00 - £80.00
5.0
One on the Lake - Dorney - September
Windsor, Berkshire
Sun 06 Sep 26
£26.68 - £85.40
Tri Reigate Standard Triathlon
Betchworth, Surrey
Sun 13 Sep 26
£97.00
Tri Reigate Sprint Triathlon
Betchworth, Surrey
Sun 13 Sep 26
£87.00
Woking Autumn Triathlon & Junior Aquathlon
Woking Leisure Centre, Woking Park, Kingfield Road, Woking, GU22 9BA
Sun 13 Sep 26
£20.00 - £74.50
Votwo Dorney Lake Triathlon
Windsor, Berkshire
Sun 20 Sep 26
£62.00 - £97.00
4.5
One on the River - Henley - September
Henley-on-Thames, Oxfordshire
Sun 20 Sep 26
£26.68 - £117.42
Dorney Lake Triathlon September
Windsor, Berkshire
Sat 26 Sep 26
£60.00 - £122.00
4.6
Showing 1-35 of 35 results