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SwimRun Casco Bay Islands (4.25 mi swim/10.25 mi run OR 2.5mi/11.75mi)


Inspired by the international swimrun race series ÖTILLÖ (island to island), originating in Sweden in 2006, SwimRun USA is pleased to bring you the only "ÖTILLÖ-style" swimrun event in North America! 

Consisting of multiple, alternating swim and overland running legs (island roads, trails, and shoreline scrambles) between a variety of islands in Portland, Maine’s spectacular Casco Bay. 

For 2018, our 3rd edition, the Long Course event will consist of approximately 4.25 miles of open water swimming and 20.25 miles of overland running across 11 islands, 20% more course than 2017! The simultaneous Short Course event will consist of approximately 2.5 miles of swimming and 11.75 miles of overland racing across 6 islands, 50% more racing than 2017!

Remaining true to the originators of the ÖTILLÖ, SwimRun Casco Bay Islands is a two-person team event. Not a relay, teammates must race the entire course together. Rules permit swim aids such as hand paddles, pull buoys, wetsuits and even swim fins to name a few. Certain safety gear is mandated by race rules and hydration and race fuel can be carried too, but what one starts with, so too must they finish with. Changing from trail shoes to swim fins, or tending to awkward gear can chew up valuable time. Having the right teammate and equipment can make all the difference.