MOWSA 2026 event calendar
Sat, Mar 7: MOWSA Swimmer Social @East Boston Yacht Club, East Boston
Jan 15-Mar 1: Boston Light Swim Swimmer & Relay Lottery open
Jan 15-May 1: Solo Marathon Swim Applications open (guaranteed placement window)
Wed, Apr 1: Doty Swim & Egg Rock Scramble Registration opens
Thu, Apr 9: Volunteer Info Sessions & Solo Swim Observer Training
Sun, Apr 14: Jim Doty Memorial 1&2 Mi Swim @Carson Beach, Southie
Jun-Oct: Solo Marathon Swims (weekdays only, pre-registered)
Mon, Aug 3: Boston Light Swim pre-event dinner @Boston Harbor Yacht Club, South Boston
Tue, Aug 4: Boston Light Swim main event, finish @Curley Community Center, Southie
Sun, Sep 13: Egg Rock Scramble @Short Beach, Nahant
Sun, Nov 1: Vampire Swim/Plunge @East Boston Yacht Club, East Boston
Sun, Nov 13: Beyond the Breakers OWS Conference
Visit the individual swim or sanctioning page for specific 2026 registration info!
VISION
To make open water swimming more accessible, inclusive, and safe throughout Massachusetts.
MISSION
To be the Massachusetts authority and community hub for marathon swimming, recognized for our expertise, integrity, passion, and commitment to swimmers and all participants in an Open Water swim.
The Massachusetts Open Water Swimming Association is a 501(c)(3) public charity.
EIN: 27-5555560
Banner photo by Elaine K. Howley