The Boston Triathlon
Welcome to Boston’s Only Triathlon! We are thrilled to have you join us in one of the greatest cities in the world for a weekend of events.
OUR STORY Our mission at ethos is to bring athletes together for challenging and unique sporting events in cities worldwide.
Our team works year round to inspire and attract triathletes from Boston and around the globe to participate in world-class events like the Boston Triathlon.
ABOUT THE BOSTON TRIATHLON Participants will swim Boston’s historic Dorchester Bay, bike its city streets and run along Southie’s scenic shoreline. The course is spectator-friendly, easy to get to and has ample parking. Following the race, join friends and family for free beer and fun at a post-race celebration.