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Triathlons

By far the most popular multidisciplinary sport, a triathlon combines swimming, cycling and running in sequence - with five officially recognised distances and plenty more for the fun of it. The five official distances are: Sprint (750m swim, 20km bike, 5km run), Olympic (1.5km swim, 40km bike, 10km run); 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). ‘Unofficial’ distances include Super-Sprint or Mini Triathlons (400m swim, a 10km bike, 2.5km run) or Ultra Triathlons (generally referring to all triathlon events with a distance that is a multiple of the Ironman Triathlon). So, whether it’s your very first tri or your 50th, there are incredible events for all levels running up and down the whole country. Check them out below...

111 events found
English Riviera Triathlon

Sunday, Jul 3, 2022

English Riviera Triathlon

LocationIndicator

Paignton, Torbay

Participants

olympic, sprint, super sprint, medium (2–5km)

Star4.5

(2 reviews)

FilledTicket£29 – £70
Booking perksGreat atmosphereFlat
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Foxlake Triathlons

Friday, Jul 8, 2022

Foxlake Triathlons

LocationIndicator

Dunbar, East Lothian Council

Participants

super sprint

FilledTicket£30
Booking perksRoad
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Salty Sea Dog Triathlon – July
Booked 6 times this week

Saturday, Jul 16, 2022

Salty Sea Dog Triathlon – July

LocationIndicator

Bournemouth, Bournemouth

Participants

sprint, super sprint

FilledTicket£45 – £58.50
Booking perksFlat road
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Droitwich Triathlon
Booked 1 time this week

Sunday, Jul 17, 2022

Droitwich Triathlon

LocationIndicator

Droitwich Spa, Worcestershire

Participants

sprint

FilledTicket£32 – £38
Booking perksFlat trail
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Mallory Park Children's Triathlon

Saturday, Jul 23, 2022

Mallory Park Children's Triathlon

LocationIndicator

Kirkby Mallory, Leicestershire

FilledTicket£30 – £70
Booking perks
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Mallory Park Sprint Triathlon Ft. Triathlon England National Championships

Sunday, Jul 24, 2022

Mallory Park Sprint Triathlon Ft. Triathlon England National Championships

LocationIndicator

Kirkby Mallory, Leicestershire

Participants

10k, super sprint

FilledTicket£63 – £69
Booking perksRoad
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Triathlon Team Relays Bedford

Sunday, Jul 24, 2022

Triathlon Team Relays Bedford

LocationIndicator

Bedford, Bedford

Participants

super sprint

FilledTicket£174 – £179
Booking perksFlat road
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Central Lancashire Duathlon
Booked 1 time this week

Saturday, Jul 30, 2022

Central Lancashire Duathlon

LocationIndicator

Preston, Lancashire

FilledTicket£12 – £15
Booking perks
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Do3 Sprint & Middle Distance Triathlon

Sunday, Jul 31, 2022

Do3 Sprint & Middle Distance Triathlon

LocationIndicator

Compton Verney, Warwickshire

Participants

sprint, half ironman

FilledTicket£60 – £190
Booking perksGreat sceneryFlat road
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Cowman Triathlon

Sunday, Jul 31, 2022

Cowman Triathlon

LocationIndicator

Olney, Buckinghamshire

FilledTicket£49 – £135
Booking perksFlat road
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Salty Sea Dog Triathlon – August
Booked 10 times this week

Saturday, Aug 6, 2022

Salty Sea Dog Triathlon – August

LocationIndicator

Bournemouth, Bournemouth

Participants

sprint, super sprint

Star5

(1 reviews)

FilledTicket£45 – £58.50
Booking perksGreat atmosphereFlat road
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Allerthorpe Sprint, Supersprint & Olympic Triathlon
Booked 1 time this week

Sunday, Aug 7, 2022

Allerthorpe Sprint, Supersprint & Olympic Triathlon

LocationIndicator

Pocklington, East Riding of Yorkshire

Participants

super sprint, sprint, olympic

FilledTicket£40 – £81
Booking perks
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Erewash Triathlon 2022
Booked 2 times this week

Sunday, Aug 14, 2022

Erewash Triathlon 2022

LocationIndicator

Long Eaton, Derbyshire

Participants

super sprint

FilledTicket£16.50 – £73
Booking perks
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Allerthorpe Sprint, Supersprint, Olympic & 70.3 Triathlon
Booked 1 time this week

Sunday, Sep 4, 2022

Allerthorpe Sprint, Supersprint, Olympic & 70.3 Triathlon

LocationIndicator

Pocklington, East Riding of Yorkshire

Participants

super sprint, sprint, olympic

FilledTicket£40 – £156
Booking perks
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Bala Standard Triathlon
Booked 4 times this week

Sunday, Sep 4, 2022

Bala Standard Triathlon

LocationIndicator

Bala, Gwynedd

Participants

olympic

FilledTicket£36.70 – £99
Booking perksGreat sceneryRoad
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Stratford Park Triathlon

Sunday, Sep 4, 2022

Stratford Park Triathlon

LocationIndicator

Stroud, Gloucestershire

FilledTicket£50 – £55
Booking perksFlat road
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Louth Triathlon
Booked 1 time this week

Sunday, Sep 4, 2022

Louth Triathlon

LocationIndicator

Louth, Lincolnshire

Participants

super sprint, sprint

FilledTicket£35 – £60
Booking perksRoad
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TRI Challenge Triathlon

Saturday, Sep 10, 2022

TRI Challenge Triathlon

LocationIndicator

Windsor, Buckinghamshire

Participants

sprint

FilledTicket£25 – £60
Earlybird entry - ends soon
Booking perksRoad
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Roadford Lake Triathlon

Sunday, Sep 11, 2022

Roadford Lake Triathlon

LocationIndicator

Broadwoodwidger, Devon

Participants

super sprint, sprint, olympic, medium (2–5km)

FilledTicket£45 – £156
Booking perks
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South Manchester Triathlon 2022
Booked 1 time this week

Sunday, Sep 11, 2022

South Manchester Triathlon 2022

LocationIndicator

Wilmslow, Cheshire East

Participants

5k, super sprint, sprint

FilledTicket£43.99 – £66
Booking perksFlat road
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Exmouth Openwater Sprint Triathlon

Sunday, Sep 11, 2022

Exmouth Openwater Sprint Triathlon

LocationIndicator

Exmouth, Devon

Participants

sprint, olympic

Star5

(4 reviews)

FilledTicket£50 – £75
Booking perksGreat atmosphereFlat
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Beyond Cotswold Triathlon (Saturday)
Booked 2 times this week

Saturday, Sep 17, 2022

Beyond Cotswold Triathlon (Saturday)

LocationIndicator

Shorncote, Gloucestershire

Participants

olympic, sprint, super sprint

Star5

(1 reviews)

FilledTicket£50 – £80
Booking perksGreat atmosphereFlat
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Aviemore Triathlon

Sunday, Sep 18, 2022

Aviemore Triathlon

LocationIndicator

Aviemore, Highland Council

Participants

sprint

FilledTicket£25.34 – £68
Booking perksGreat sceneryTrail
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Beyond Cotswold Triathlon (Sunday)
Booked 5 times this week

Sunday, Sep 18, 2022

Beyond Cotswold Triathlon (Sunday)

LocationIndicator

Shorncote, Gloucestershire

Participants

olympic, sprint, super sprint

FilledTicket£45 – £75
Booking perks
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Showing 25 - 48 of 111 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!

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