SwimRun is a fast growing endurance sport in which you run and swim between two predefined points along a set course of cross country runs and open water swims without stopping in between. SwimRun is quite similar to the sport aquathlon where participants undertake a swim and then transition to a run. However, in SwimRun participants switch between running and swimming many times during a single race, running in their wetsuits and swimming in their trainers.
The sport was conceived in 2006 when Ötillö (meaning ‘Island to island’) was held for the first time in Sweden. The concept of SwimRun was result of a beer fueled challenge between a group of friends – to race across the Stockholm archipelago, running over the islands and swimming between them.