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Ötillö is an ultra-endurance race held annually on the first Monday in September in the Stockholm archipelago, Sweden. 160 women's, men's and mixed teams complete a 70 km racecourse, consisting of a 60 km trail running and 10 km of open water swimming across 25 islands to crown the Ötillö Swimrun World Champions.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).