WSL (Washington State)

National adult slow-pitch softball organization running sanctioned tournaments and championships across the United States, focused on team-based competitive play.
Rainbow City Softball

Inclusive league focusing on marginalized genders.
Emerald City Softball Association

Seattle’s largest LGBTQIA+ and allied softball league, ECSA has been fostering inclusion, competition, and community through softball since 1980. It offers multiple divisions for all skill levels and hosts seasonal leagues and tournaments, including the renowned Emerald City Classic.
Queer City Sports

Inclusive recreational sports leagues and social events for LGBTQ+ individuals and allies in the Seattle/Tacoma area.
DiscNW

The organization emphasizes spirit of the game, inclusivity, and community development, and serves as one of the largest and most established Ultimate communities in the U.S.
Tacoma Soccer Center

Community-oriented indoor facility; popular in Tacoma.
Starfire Sports

A premier adult soccer facility and league operator in the Seattle area offering indoor and outdoor leagues for men, women and co-ed divisions, plus tournaments and free-agent support, with recreational and competitive levels.
Rainy City Soccer Club

Seattle’s Queer Soccer Club — community-first, soccer second. Offers scrimmages, training, and matches for LGBTQ+ inclusive community.
USSSA (Washington State)

Statewide adult slow-pitch softball program under USSSA Washington, offering leagues and tournaments for recreational and competitive players. The site supports teams with registration, schedules, rankings, and season updates.
Seattle Parks & Recreation

City-run organization offering multiple adult sports leagues and drop-in programs year-round