Swimrun Race Organisers

Updated January 2026

This is a summary of Swimrun race organisers from all around the world. Read on to find an organiser in the country you are interested in, and then find a race to match your ability - or maybe challenge you!

We have picked the most prominent or most important organisers; If you feel we have missed a swimrun organiser, please let us know using the Contact Us link!

We have listed the swimrun race organisers alphabetically.

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Swimrun Race Organisers

Gritty Rascals Events

United Kingdom

Gary Pavitt at Gritty Rascals Events has brought back 2 iconic events to the Swimrun calendar, after the demise of Breca.

There are currently 2 locations on offer: Coniston Water in the English Lake District, and the Gower peninsula in south-west Wales.

The Coniston event takes in 4 lakes (Coniston Water, Windermere, Rydal Water and Grasmere) and offers 3 distances (45 km, 21 km and 12.7km) in 2024.

Find out more at our Gritty Rascals Events page!.

Weswimrun

United Kingdom

Weswimrun is an adventure sports company based in Wales, U.K.. They have 3 events planned for 2024, with race distances of 12km, 17km and a monster 60km. They also have a swimrun workshop in May to help people find out about swimrun, and provide coaching and advice.

For more information, have a look at our Weswimrun page!

Two men in wetsuits and red tops clambering out of a Welsh lake during Transition Training for swimrun.

Transition training. Image credit: weswimrun.org

Mudskipper Swimrun Challenge

Canada

Canadian company Canaqua Sports runs numerous running and swimming events across Canada, and the Mudskipper Swimrun Challenge concentrates on swimrun!

They have up to 20 events in 2026, some with a choice of race distance. There are 4 races that count as qualifying events for the Individual IWC World Championship in Grado, Italy.

For more information, go to our Mudskipper Swimrun Challenge page.

Odyssey Swimrun

U.S.A.

Odyssey Swimrun is the original swimrun company in America, and is now called Ötillö Swimrun USA. They organize 4 races across the USA, from August to November. All races offer a choice of 2 distances, usually from around 10 miles to around 20 miles in total distance.

Races are held in:

Casco Bay Islands
Mackinac Island
Orcas Island
Austin

For more information, go to our Odyssey Swimrun page.

Ötillö Swimrun

Sweden / International

The inventors of swimrun, the original Swedish company that set up the swimrun across the Stockholm archipelago - 75 km distance! They now organize a number of events across the world, with new Race Director Staffan Björklund (after the departure of original directors Michael Lemmel and Mats Skott).

For 2026, TEN races have confirmed dates;

Uto, Sweden
Engadin, Switzerland
Gothenberg, Sweden
Åland (Sweden)
Casco Bay, USA
World Championship in Sweden
Orcas Island, USA
Cannes, France
Colorado (USA)
Austin, Texas, USA

Read more about Ötillö and check out the 2026 events at our Ötillö page.

otillo swimmer in a green cap and top in the sea

Swimrun Australia

Australia

Swimrun Australia started with just the one event, in Sydney East, but have recently added events at Melbourne, Sydney North and the Gold Coast, at Miami Beach in Queensland.

Take a look at our Swimrun Australia page here.

Swimrun Canarias

Spain - Canary Islands

Swimrun Canarias organises three events in the Canary Islands, which belong to Spain. They are on the islands of La Palma, Gran Canaria and Tenerife. The 2026 dates have been set for the 8th November, 22nd November and 13th December respectively.

The Canary Islands are off the coast of North Africa, out in the Atlantic. The Lanzarote Ironman triathlon is notable for having very similar conditions to the original event in Kona, Hawai'i.

For more information, check out our Swimrun Canarias page here.

Swimrun Italy

Italy

This organization runs the AquaticRunner IWC World Championship in Grado, Italy. You have to qualify to enter this event. AquaticRunner started off in 2014, with a small event running and swimming along a chain of sandy islands from Grado to Lignano Sabbiadoro.

This was probably the first swimrun event that did not need a wetsuit due to warm waters!

The swimrun Italy website is very slow to be updated, and we are waiting on news of event dates for 2026.

Read more at our Swimrun Italy page here!

Swimrun Portugal

Portugal

Swimrun Portugal Series now runs FIVE events throughout mainland Portugal and Madeira, from April to October. These are all in stunning locations, and definitely deserve consideration!

In 2026 there will be events at;

Troia, on 19th April 2026
Lagoa, on 24th May 2026
Penacova on 14th July 2026
Madeira on the 6th September 2026
Zezere on the 18th October 2026.

Check out our Swimrun Portugal Series page here.

There is also a race at Tamega, which is not part of the Swimrun Portugal series events.

Keen As Mustard

United Kingdom

Based in the U.K., As Keen As Mustard runs THREE races through the summer2026, each with 2 or 3 race distances to choose from, plus a Training and Kit Testing session on 31st May 2026. This training and kit testing day is very useful for trying out new gear, and picking up tips and tricks from fellow swimrunners, PLUS there is cake and a goodie bag!

The Bewl Water race will be organised by Gritty Rascals in 2026.

For more information, go to our Keen As Mustard page!

Other swimrun race organisers include;