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Triathlons
By far the most popular multidisciplinary sport, a triathlon combines swimming, cycling and running in sequence. There are five officially recognised distances and plenty more for the fun of it. Whether it’s your very first triathlon or your 50th, there are incredible events for all levels running up and down the whole country. Find hundreds of the best UK triathlon events on Let’s Do This, with races to book for every level. No matter which time of the year you’re looking to compete, discover triathlons near you today.
Sunday, 17 Sept 2023
Ironman 70.3 Weymouth
Weymouth, Dorset
half ironman
(6 reviews)
Friday, 26 May 2023
Bristol Triathlon Series - Race 2
Frampton Cotterell, South Gloucestershire
sprint
Sunday, 18 Jun 2023
West Bay Triathlon
West Bay, Dorset
olympic, sprint, super sprint
(13 reviews)
Saturday, 24 Jun 2023
Outlaw Half Woburn Weekend 2023
Milton Keynes, Central Bedfordshire
10k
Friday, 30 Jun 2023
Bristol Triathlon Series - Race 3
Frampton Cotterell, South Gloucestershire
super sprint
Friday, 28 Jul 2023
Bristol Triathlon Series - Race 4
Frampton Cotterell, South Gloucestershire
sprint
Sunday, 30 Jul 2023
255 Triathlon Festival of Endurance
Chichester, West Sussex
5k, ultramarathon, sprint, ironman, half ironman
Friday, 25 Aug 2023
Bristol Triathlon Series - Race 5
Frampton Cotterell, South Gloucestershire
sprint
Triathlons in the UK
The triathlon is a multi-sport event combining swimming, cycling and running. The length and duration of these events can vary greatly, ranging from just a few miles to 140 plus. In addition, conditions in competition can differ from event to event. The swim could be in an indoor pool or the sea, and cycling or running on flat coastal roads or rolling countryside hills.
The UK plays host to some of the best triathlon events in the world. Large scale events such as the ITU Worlds Triathlon Leeds and London Triathlon host athletes of all levels of experience with big crowds building a buzzing atmosphere.
What’s the best UK triathlon event for me?
On Let's Do This, you can refine your search for a triathlon by exploring different race distances.
The Super-Sprint distance (400m, 10k, 2.5k) and Sprint distance (750m, 20k, 5k) triathlons are great for beginners looking to explore multi-sport. These events can be attempted without much prior training. But if you want to be competitive you should practice your transitions as they can make a big difference to your time.
Olympic distance triathlons (1.5k, 40k, 10k) are the standard distance for international competition. To be competitive here, you’ll need to take your training seriously. If you can finish one of these in under 3 hours, kudos to you.
The final two distances are the Middle Distance / Half Ironman (1.9k, 90k, 21.1k) and the Full Distance / Ironman (3.8k, 180k, 42.2k). Finishing these events is an achievement in itself. If you have trained well for a Half Ironman you could be pushing for under 6 hours for men and 7 for women. For the full distance, anything under the 17hr cut off point is a solid accomplishment, but under 13 hours (men) and 14 hours (women) deserves serious respect.
Triathlon Event Distances
Triathlon Event Types
Nearby Triathlon Events
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