MOWSA 2026 event calendar
Saturday, March 7: MOWSA Swimmer Social @EBYC
Jan 15-Mar 1: Boston Light Swim Swimmer & Relay Lottery open
Jan 15-May 1: Solo Marathon Swim Applications open (guaranteed placement window)
Wednesday, April 1: Doty Swim & Egg Rock Scramble Registration opens
April (multiple dates, TBD): Volunteer Info Sessions & Solo Swim Observer Training
Sunday, June 14: Jim Doty Memorial 1&2 Mi Swim @Carson Beach, Southie
Jun-Oct: Solo Marathon Swims (weekdays only, pre-registered)
Monday, Aug 3: Boston Light Swim pre-event dinner
Tuesday, Aug 4: Boston Light Swim main event
Sunday, September 13: Egg Rock Scramble @Short Beach, Nahant
Late-Oct: Vampire Swim/Plunge (location TBD)
Early-Nov: 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