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Triathlons

Triathlon is a multidiscipline sport, combining swimming, cycling and running in sequence.There are five official distances: Sprint Distance (750m swim, 20km bike, 5km bike); Olympic (1.5km swim, 40km bike, 10km swim); ITU Long (3km swim, 80km bike, 20km run); Half/Middle-Distance/70.3/Half-Ironman (1.9km swim, 90km bike, 21.1km run); Full/Ironman (3.8km swim, 180km bike, 42.2km run). There are other unofficial distances, such as super-sprint triathlons or ultra-triathlons. Multisports have been growing in popularity in the UK over recent years, particularly triathlons. The UK now has over 1,000 triathlon events each year with over 200,000 participants. Some triathlons take place in cities, with the swim section in pools or manmade lakes, and the cycle and run elements through cities and past landmarks. Alternatively, some triathlons require open-water swimming in the sea, and take the cycling and running sections off-road onto trails and difficult terrains. There are multisport variations of triathlons such as duathlon, aquathlon, and aquabike, which focus on two of the disciplines but not all three.

79 events found
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    Mon, 2nd May 2022

    Winchester Triathlon
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    Winchester, Hampshire

    Participants

    super sprint, sprint and more

    FilledTicket£29.99 – £49.99
    Booking perks
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    Sun, 26th Jun 2022

    Cardiff Triathlon
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    Cardiff, Cardiff

    Participants

    olympic, sprint, super sprint

    5

    (1 reviews)

    FilledTicket£70.99 – £105.99
    Booking perks
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    Sat, 18th Sep

    Superfeet Sandman Triathlon & Duathlon
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    Llanfairpwllgwyngyll, Isle of Anglesey

    Participants

    sprint, olympic, half ironman and more

    FilledTicket£66.95 – £170
    Booking perks
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    Sun, 19th Sep

    Season Finale Triathlon
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    Windsor, Buckinghamshire

    Participants

    olympic, sprint, super sprint and more

    5

    (1 reviews)

    FilledTicket£19 – £102.99
    Booking perksGreat scenery
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    Sat, 25th Sep

    Eton Dorney Triathlons
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    Windsor

    Participants

    super sprint, sprint, olympic

    FilledTicket£45 – £83
    Booking perks
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    Sat, 7th May 2022

    Weston Park Triathlon and Duathlon
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    Weston-under-Lizard, Staffordshire

    Participants

    super sprint

    FilledTicket£56.99 – £76.99
    Booking perksGreat scenery
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    Sat, 11th Jun 2022

    Adventure Championships Triathlon
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    Wales

    Participants

    sprint, super sprint and more

    FilledTicket£178.99 – £436.99
    Booking perksGreat scenery
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    Sat, 11th Jun 2022

    The SportPursuit Slateman10 Triathlon & Duathlon
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    Llanberis, Gwynedd

    Participants

    olympic, sprint, half ironman, super sprint and more

    5

    (1 reviews)

    FilledTicket£26 – £179.99
    Booking perksGreat scenery
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    Sat, 18th Jun 2022

    Cork Standard Triathlon
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    County Cork

    Participants

    olympic

    FilledTicket€80
    Booking perks
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    Sun, 29th Aug

    New Forest Middle Distance Triathlon
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    Ringwood, Hampshire

    Participants

    sprint, olympic

    FilledTicket£60 – £156
    Booking perksGreat scenery
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    Sun, 29th Aug

    Conquer The Chilterns - Triathlon & Swims
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    Fawley, Buckinghamshire

    Participants

    half ironman, half marathon, 10k, 5k and more

    FilledTicket£15 – £110
    Booking perksGreat scenery
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    Sat, 4th Sep

    Dorney Lake Multisport Weekender - Runs
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    Dorney, Buckinghamshire

    Participants

    half marathon, 10k, 5k, olympic, sprint, super sprint and more

    3.5

    (8 reviews)

    FilledTicket£20 – £35
    Booking perks
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    Sun, 5th Sep

    Dorney Lake Multisport Weekender - Triathlons and Swims
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    Windsor, Buckinghamshire

    Participants

    super sprint, sprint, 5k

    FilledTicket£15 – £75
    Booking perks
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    Sun, 5th Sep

    Exmouth Openwater Sprint Triathlon
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    Exmouth, Devon

    Participants

    sprint, olympic

    5

    (1 reviews)

    FilledTicket£49 – £59
    Booking perks
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    Sat, 11th Sep

    TRI Challenge Triathlon
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    Windsor, Buckinghamshire

    Participants

    sprint

    FilledTicket£45
    Booking perks
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    Sun, 12th Sep

    Bournemouth International Triathlon
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    Bournemouth, Dorset

    Participants

    sprint, olympic

    FilledTicket£30.50 – £91
    Booking perks
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    Sun, 12th Sep

    Tavistock Triathlon
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    Tavistock, Devon

    Participants

    olympic, sprint and more

    FilledTicket£19 – £57
    Booking perks
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    Sun, 26th Sep

    Dawlish Triathlon
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    Dawlish Warren, Devon

    Participants

    sprint, super sprint

    FilledTicket£39 – £49
    Booking perks
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    Sun, 10th Oct

    Torbay Triathlon Autumn
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    Paignton, Torbay

    Participants

    sprint, super sprint and more

    FilledTicket£19 – £51
    Booking perks
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    Sun, 14th Nov

    Donut Duathlon
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    Paignton, Torbay

    Participants

    sprint

    FilledTicket£13 – £30
    Booking perks
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    Sun, 27th Mar 2022

    Harlech Triathlon and Duathlon
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    Harlech, Gwynedd

    Participants

    sprint

    4.5

    (1 reviews)

    FilledTicket£45.99 – £61.99
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    Sun, 24th Apr 2022

    Torbay Triathlon Spring
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    Paignton, Torbay

    Participants

    sprint, super sprint, 5k and more

    FilledTicket£19 – £42
    Booking perks
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    Sun, 15th May 2022

    Exmouth Triathlon
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    Exmouth, Devon

    Participants

    sprint, super sprint

    FilledTicket£19 – £51
    Booking perks
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    Sun, 12th Jun 2022

    Dartmouth Triathlon
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    Dartmouth, Devon

    Participants

    sprint, super sprint

    FilledTicket£42 – £50
    Booking perks
Showing 1 - 24 of 79 events

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 you need to know about Triathlons

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, however, if you want to be competitive you should practice your transitions as they can make a big difference to your time. Our 8 week sprint triathlon training plan will get you up to speed. If you are well prepared you could expect to finish a Super-Sprint in under an hour and the Sprint in under 90 minutes.

Olympic (1.5k, 40k, 10k) distance triathlons are the standard distance for international competition. To be competitive here, you’ll need to take your training seriously. We recommend following our 12 week middle distance triathlon training plan (designed for Half Ironman preparation) to get you in shape. If you want to compete in a big name event, the ITU World Triathlon event in Leeds is one of the most popular in the UK, and you’ll get to see some of the worlds best competing for the World Series title. 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. IRONMAN UK and the Outlaw Triathlon are among the UK’s favourites. 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.

Kit

To compete in a triathlon you’ll need the right gear. We’ve written a blog post on 33 essential items to pack for a triathlon, which highlights what you really need and why. Don’t forget your swim cap!

Triathlons by Location

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