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 7: 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

The Massachusetts Open Water Swimming Association envisions a future in which every individual will be able to access safe swimming in Massachusetts open waters, regardless of economic status and physical ability.

MISSION

1. To promote a healthy lifestyle through open water swimming, with a focus on water safety and access to opportunities at all levels of swimming skill.

2. To serve the greater open water swimming community by organizing, promoting, and authenticating amateur open water swims in Massachusetts and surrounding bodies of water.

The Massachusetts Open Water Swimming Association is a 501(c)(3) public charity.

EIN: 27-5555560

Banner photo by Elaine K. Howley