Olympic Triathlons in UK

We are delighted to announce the return of the annual Big T Triathlon, taking place in Trowbridge. You can choose between a sprint distance (400m / 25km / 5km) and our Enduro, olympic distance (600m / 48km / 10km) and Adult Aquathon (400m /5km). There are also Little t Junior races.

Set at the West Craven Sports Centre in Barnoldswick, in the beautiful Lancashire countryside, next years Pendle Triathlon 2019 event is going to be a great day for elite athletes, first timers and all those in between.

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 find a more iconic race than the Pedalcover Slateman Triathlon.

The race offers a unique mix of incredible scenery and challenge with a carnival atmosphere that makes all feel welcome.

Once again the Slateman will be delivered over two days, with the three tri options of the Slateman Sprint, Full and Savage available. Team relay categories are also available for both the Sprint and Full race distances.

The Southport sprint and standard distance triathlon attracts triathletes of all ability levels, from complete novices to elite competitors. Based at Waterside Lodge a modern, purpose built two-storey Activity Centre on Southport Marine Lake, it has become one of the biggest local events, reaching maximum capacity every year. The sprint distance event is a 750m swim / 20k cycle / 5k run, the standard distance is 1500m swim / 40k cycle / 10k run. The cycle course takes place on closed roads and the run course is based around the marina on tarmac paths.

DB Max also use the same venue to organize the Inter-Services Standard Distance Triathlon, and the Army Standard Distance Triathlon Championships.

The Marshman events consist of 2 triathlon races. The Marshman Standard (1500m,40k,10k ) and the Marshman Half-Iron distance race (1900m,92k,21k). 2018 represents the 10th running of our Marshman Half

Also, there is a series of 3 swim-only races which will begin at or near the same time, with 1.9k, 3.8k and 5.7k distances available. Those appear on separate event pages.

Transition (for triathlons) and registration (all events) will open at 6:30 am. See the event pages for individual start times. The transition will likely be closed while athletes are leaving the water and getting out on the bike course. Please be mindful at all times that athletes will be in and out of the venue at various times at racing speed depending on their ability and race distance. There is only one gate so please take care.

This is the 10th year of the Marlow Sprint & Olympic Distance Triathlon, consisting of a river swim, cycling and running. The event has attracted 1000s of participants over the year and is open to all levels of participant and encourages first time triathletes to the event.

The Swim course is in the River Thames. It is designed to make even the weakest swimmer get a fast swim split.

The Marlow Classic Half Iron Distance is the only long distance event in the Thames Valley and is a fairly flat scenic course taking in the views of Marlow and the surrounding areas.

The Bike course for the Sprint Distance is 24.5km & the Olympic Distance is 37km. It is an out and back course and only has two hills, but otherwise fast and flat.

The Run course for the Sprint Distance is a 1 Lap 5km route & the Olympic Distance is 2 Laps for a 10km. The course is on Tarmac and Grass Footpaths. It meanders back towards Marlow and into the finish at Higginson Park from the river tow path.

The event is set to attract over 700 participants, as the world of endurance sports and triathlon creates massive demand for longer distance events over the shorter distances that have originally formed this great sport.

Join us for a great day by the River Barrow.

There's a race for everyone... from absolute beginner to seasoned vet.

The Deva Triathlon is an Olympic distance triathlon held in the centre of the historic City of Chester. It is currently in its 20th Year and is run by Chester Triathlon Club members.

We have had so many fantastic comments about the course being located right in the heart of the City. Transition is in the fabulous Grosvenor Park, a fantastic Victorian Park. The bike route will be a single lap (2 laps for the middle distance) into Wales via Eccleston, Rossett and Borras and back into Chester via Alford and Boughton. The run route will incorporate running over the Old Dee Bridge as well as the suspension bridge, along the Groves and in the meadows with the finish being at the Bandstand, a truly City Centre race.

We are excited to announce the return of Dorney Triathlon in 2019. Join us at Dorney Lake; home to London 2012s rowing and canoeing events for a sprint or standard distance triathlon. The purpose built lake is perfect for the swim and the flat grounds lend themselves to a totally flat bike and run course, ideal for chasing down a new personal best!

The AJ Bell World Triathlon Leeds returns to the city, representing the pinnacle of triathlon competition in the UK and providing more than 5,000 recreational triathletes with the unique opportunity to compete on much of the same course as the worlds best.

The AJ Bell World Triathlon Leeds will be organised exclusively by British Triathlon in partnership with Leeds City Council, UK Sport and the ITU. The same experienced team who worked on the event previously will be back with plenty of credentials including Accenture British Triathlon Mixed Relay Cup, Tri Liverpool and the ITU World Triathlon Series event in Hyde Park, three events well known for their event experience.

Take part in Norfolks favourite weekend of triathlon at the beautiful Fritton Lake, situated within the Somerleyton Estate.

Across the June weekend there are three distances to race; Super Sprint, Sprint and Standard. You also have the option to take on the Triple Tri Challenge, completing all three triathlons in one weekend!

As part of the massively popular Fritton Lake Triathlon Festival Weekend, this sprint distance triathlon event takes in the beautiful aspects provided by Fritton Lake and the surrounding area. It includes an open water 750m swim in the gorgeous Lake, followed by a 20km cycle leg along public roads around the Somerleyton Hall Estate. Once completing the bike course, the 5km run consists of two laps along marked woodland trails around the country park area.

With the swim taking place in the lake, the cycle on roads surrounding the Somerleyton estate and the off road run taking in woodland trails and paths this event is spectator friendly and one to bring the whole family too.