Triathlons in United Kingdom

Triathlon events combine swimming, cycling, and running across five official distances: Sprint; Olympic; Long ITU; Half/70.3 (Half Ironman); Full (Ironman). The UK has over 1,000 events each year and over 200,000 participants.
Showing 1 - 43 of 43 events
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  • SEP28
    Hever Castle Triathlon and Sport Festival
    Hever, South East, United Kingdom

    The UKs second biggest triathlon, the worlds largest childrens triathlon and the finale of both the Castle Tri Series and the UK triathlon season.

    A...

    £30 - £270
    • Triathlon
    • Swimming
    • Half Ironman
    • Olympic
    • Super Sprint
    • Duathlon
    • Running
    • Half Marathon
    • 10k
  • AUG8
    The London Triathlon
    London, London, United Kingdom

    Attracting over 13,000 participants and 30,000 spectators each year, this iconic event has become a must do event in the sporting calendar. With a variety...

    • Triathlon
    • Olympic
    • Sprint
  • SEP22
    Ironman 70.3 Weymouth
    Weymouth, South West, United Kingdom

    Famous for hosting the 2012 Olympic and Paralympic Sailing events, Weymouth will now be hosting the ultimate test of endurance. For one day only this...

    £260 - £330
    • Triathlon
    • Half Ironman
  • OCT6
    Warwickshire Triathlon
    Stratford-upon-Avon, West Midlands, United Kingdom

    The Warwickshire Triathlon is a fun but challenging event set around the historic town of Stratford-upon-Avon. The event is aimed at all abilities and...

    £59.50 - £64.95
    • Triathlon
    • Super Sprint
    • Sprint
  • SEP22
    Hercules Festival of Sport – St. Albans
    St Albans, East of England, United Kingdom

    Set in the historic Roman town of St. Albans, our Hercules Festival of Sport will once again be a wonderful event and an ideal end to your season.

    Our...

    £15 - £55
    • Triathlon
    • Sprint
    • Duathlon
    • Running
    • 5k
    • 10k
  • SEP28
    Mumbles Triathlon
    Mayals, Wales, United Kingdom

    The award-winning Mumbles Triathlon has become a well known event in South Wales, and attracts a number of athletes from all levels and...

    £45 - £125
    • Triathlon
    • Half Ironman
    • Sprint
    • Super Sprint
  • JUL12
    Ironman UK
    Bolton, North West, United Kingdom

    Dubbed one of the UK's friendliest towns, Bolton has something for everyone in the IRONMAN family. Athletes can take a nature walk with the kids, go...

    £410
    • Triathlon
    • Ironman
    • Running
    • 5k
  • SEP29
    Ludlow Sprint Triathlon
    Ludlow, West Midlands, United Kingdom

    Looking for a challenge this year? Look no further than Ludlow's very own Sprint Triathlon. Sign up for the Ludlow Sprint Triathlon which is the...

    £35 - £40
    • Triathlon
  • MAY17
    Outlaw Half Nottingham
    Nottingham, East Midlands, United Kingdom

    The Outlaw Half Nottingham is one of Britains most popular events, often selling out in a matter of minutes. The Middle Distance event covers a 1.2 mile...

    £165 - £195
    • Triathlon
  • SEP22
    Conquer The Chilterns Triathlon
    Fawley, South East, United Kingdom

    Take part in the Chilterns Triathlon, in the heart of the Thames Valley and only an hour from London.

    This is one of the most scenic triathlons in the...

    £60 - £115
    • Triathlon
    • Half Ironman
  • OCT13
    The Peninsula Triathlon
    Ipswich, East of England, United Kingdom

    The Peninsula Triathlon is brought to you by Ipswich Basketball Club and is based in the idyllic setting of the Royal Hospital School, Holbrook, Suffolk....

    £40
    • Triathlon
  • JUN13
    The SportPursuit Slateman Triathlon
    Llanberis, Wales, United Kingdom

    A swim surrounded with mountains, a bike course in the heart of the Snowdonia National Park and a run through an awesome slate quarry - we challenge you to...

    £26 - £190
    • Triathlon
    • Olympic
    • Sprint
    • Half Ironman
    • Duathlon
    • Swimming
  • SEP22
    The Wasdale Triathlon Half X
    Seascale, North West, United Kingdom

    Described as the deepest, steepest and the highest, this half Ironman challenge is surely one of the toughest in the Country. The swim is in Wastwater, the...

    £150
    • Triathlon
    • Half Ironman
  • MAY17
    Exmouth Triathlon
    Exmouth, South West, United Kingdom

    Returning again with 8 races this year! An event that has multiple distances and category groups for you to choose from.

    This event is perfect for all...

    £15 - £31
    • Triathlon
    • Sprint
    • Super Sprint
  • SEP29
    Dawlish Triathlon
    Dawlish Warren, South West, United Kingdom

    The Dawlish returns. Well be using Dawlish Warren for the HQ and the sea swim. We also hope to have a childrens event (with a sea swim & traffic free...

    £22 - £41
    • Triathlon
    • Sprint
    • Super Sprint
  • SEP22
    Teesdale Triathlon
    Barnard Castle, North East, United Kingdom

    The Teesdale Triathlon is one of the most popular events on the North-East calendar. It consists of a 400m (16 lengths) pool swim, followed by an 18-mile...

    £35 - £40
    • Triathlon
    • Sprint
  • OCT6
    Brackley Triathlon
    Brackley, East Midlands, United Kingdom

    Now approaching its 8th year this family friendly triathlon has the swim section at the new simming pool at Brackley Leisure Centre with transition area...

    £18 - £55
    • Triathlon
    • Sprint
    • Swimming
  • SEP21
    The Traighathlon Series
    Mallaig, Scotland, United Kingdom

    On Sunday 24th September, Road to the Isles Events will deliver a unique, challenging and affordable series of multiple distance triathlons based along the...

    £25
    • Triathlon
    • Super Sprint
    • Sprint
    • Olympic
  • SEP22
    Newent Triathlon
    Newent, South West, United Kingdom

    Sprint Distance Triathlon. 400m swim, 18k cycle, 5k run. A friendly, local triathlon, suitable for first timers and experienced triathletes. 26 lengths of...

    £28
    • Triathlon
    • Sprint
  • SEP22
    North West Triathlon
    Nantwich, North West, United Kingdom

    The North West Triathlon is set in Nantwich, Cheshire and offers a spectator friendly venue for supporting family or friends and a fun and relaxed...

    £59.95 - £64.95
    • Triathlon
    • Sprint
    • Super Sprint
  • SEP22
    End O Season Epworth Sprint Triathlon
    Epworth, Yorkshire and the Humber, United Kingdom

    400m pool swim, 20km bike, 5km run. The event is taking place on the 21st of September...

    £40 - £45
    • Triathlon
    • Sprint
  • SEP21
    TRI Challenge Team Triathlon
    Windsor, South East, United Kingdom

    Awesome fun, great atmosphere and possibly the best team triathlon to take part in. The event is ideal for all levels of triathlete so find your team of 3...

    £30 - £50
    • Triathlon
    • Sprint
  • SEP29
    Southampton Fast Twitch Triathlon
    Dibden, South East, United Kingdom

    A pool based Sprint Triathlon situated on the edge of the beautiful New Forest National Park. The bike course heads out towards the historic village of...

    £47
    • Triathlon
    • Sprint
  • SEP29
    GO TRI Come & Give It A Go
    Wilmslow, North West, United Kingdom

    McA Fitness & Events are really proud to be working alongside Limb Power and CP Sport to showcase this opportunity for everyone to race together. If you...

    £13 - £15
    • Triathlon
    • Super Sprint
  • SEP22
    Kendal Castle Sprint Autumn Triathlon
    Kendal, North West, United Kingdom

    A super autumn pool based sprint triathlon. Our home for the day is Kendal Leisure Centre and the event is a 400m swim, 18km road bike and 5km run....

    £40 - £45
    • Triathlon
  • SEP29
    MacQueen Bros. Mid Argyll Triathlon
    Lochgilphead, Scotland, United Kingdom

    The MacQueen Bros Mid Argyll Triathlon aspires to be a sporting event which promotes local community participation balanced with the right degree of...

    £36 - £42
    • Triathlon
    • Sprint
  • OCT6
    Minehead Triathlon
    Minehead, South West, United Kingdom

    The event will utilise its coastal location by including a 750m mass start open water sea swim in the shadows of North Hill but within the safety of the...

    £45 - £70
    • Triathlon
    • Sprint
  • OCT6
    Homecrafts Goole Triathlon
    Goole, Yorkshire and the Humber, United Kingdom

    The season closer! A pool sprint triathlon based at the Goole Leisure Centre with a secure transition area on the all weather football pitch and well signed...

    £39
    • Triathlon
  • SEP22
    Stowmarket Tri - The HaverSports West Suffolk Triathlon
    Stowmarket, East of England, United Kingdom

    Stowmarket Tri - the West Suffolk Triathlon Festival is now organised by HaverSports and back for 2019! Extended this year to incorporate a new running...

    £25 - £45
    • Triathlon
    • Duathlon
  • OCT6
    Carmarthen Sprint Triathlon
    Johnstown, Wales, United Kingdom

    A 400m swim in the eight-lane Carmarthen pool followed by a 23km bike ride down to Llansteffan. On returning from Llansteffan you will then take on the 5km...

    • Triathlon
  • SEP29
    Keyo Brigg Sprint
    Scawby, Yorkshire and the Humber, United Kingdom

    The Keyo Brigg Sprint Triathlon is organised by Lincsquad and consists of a 400 metre pool swim (16 lengths) in the Ancholme Leisure Centres 25 metre pool...

    £15 - £43
    • Triathlon
  • OCT6
    HaverTri The Adams Harrison Triathlon
    Haverhill, East of England, United Kingdom

    HaverTri - the Adams Harrison Triathlon Festival is back for 2019! Now in its fifth year, this event will see athletes take part in a variety of events...

    £25 - £45
    • Triathlon
    • Duathlon
  • SEP29
    Petersfield Sprint Triathlon
    Petersfield, South East, United Kingdom

    The event is based in the scenic grounds of Churcher's College in the lovely market town of Petersfield at the foot of the South Downs. The swim is in...

    £35
    • Triathlon
  • JUN21
    Ironman Cork
    Youghal, County Cork, Ireland

    IRONMAN Ireland, Cork, will showcase the beauty and rugged landscapes of County Cork - one of Ireland's most popular tourist destinations. With the...

    • Triathlon
    • Ironman
  • SEP22
    Peebles Sprint Triathlon
    Peebles, Scotland, United Kingdom

    A sprint race staged in the beautiful countryside of the Scottish Borders.

    Distances: Swim 750m swim, cycle 19.14km cycle and run...

    £36.05 - £45.50
    • Triathlon
    • Sprint
  • SEP29
    GO TRI Hampton Pool Race 2
    Hampton, London, United Kingdom

    First Stride Events are joining forces with Hampton Pool to offer a beginner friendly GO TRI at this great venue on the edge of Bushy...

    £16
    • Triathlon
  • SEP22
    Outlaw X
    Newark, East Midlands, United Kingdom
    • Triathlon
    • Half Ironman
  • APR10
    The Radley Triathlon
    Radley, South East, United Kingdom

    Set in the scenic grounds of Radley College in Abingdon, just outside of Oxford.

    The Radley Triathlon a.k.a. Good Fri Tri is a fantastic pool-based...

    £39.99 - £49.99
    • Triathlon
    • Sprint
  • SEP29
    Bedford Super Sprint Triathlon Series – The Autumn Sprint
    Bedford, East of England, United Kingdom

    The Bedford Super Sprint Triathlon Series has been on the calendar since 2004 and has attracted a whole spectrum of competitors from complete novices who...

    £35 - £60
    • Triathlon
    • Sprint
  • SEP29
    East Leake Triathlon (End of Season)
    East Leake, East Midlands, United Kingdom

    The friendly atmosphere makes East Leake Triathlon a superb event for the first timer (each event we have over 150 first timers), whilst the fast flat...

    £30 - £45
    • Triathlon
    • Sprint
  • SEP21
    Peebles Come & Tri Triathlon
    Peebles, Scotland, United Kingdom

    The Peebles Triathlon events continue to go from strength to strength, with a combined 410 people attending last years Sprint, Come & Tri and Junior...

    £25.75 - £32
    • Triathlon
  • SEP22
    West Wight Triathlon
    Freshwater, South East, United Kingdom

    The popular West Wight Triathlon is an ideal race for first timers but challenging enough for more experienced racers.

    It incorporates a pool swim,...

    £30 - £40
    • Triathlon
  • JUN21
    Ironman Ireland
    Youghal, County Cork, Ireland

    IRONMAN Ireland, Cork, will show off the alluring and jagged landscapes of County Cork, one of Ireland's most popular tourist destinations. With the...

    €555
    • Triathlon
    • Ironman
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More United Kingdom Triathlons

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!