The ISC hosts premier men’s fastpitch softball tournaments, including Qualifiers, where teams compete for a chance to advance, and the prestigious ISC World Tournament, showcasing the best teams from around the globe in a battle for championship glory.
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The teams that compete in ISC tournaments and the World Tournament are the lifeblood of our organization and the sport. These teams represent the pinnacle of dedication, skill, and sportsmanship, bringing together athletes from across the globe to showcase their talent and passion for the game. Each team embodies the rich traditions and competitive spirit that define ISC softball, inspiring fans and players alike.
Find all the official ISC Rules here.
The ISC holds a rich history and celebrates its 80th Anniversary in 2025. What started back in 1947 as the NSC is now an international organization that welcomes players and coaches from all over the world each year to its World Tournament
The International Softball Congress (ISC) is committed to building the future of men’s fastpitch by supporting young athletes and the programs that introduce them to the game. The Carrol Forbes Foundation (CFF), created in 1995 in honor of ISC founder Carrol Forbes, helps us do exactly that by providing funding for youth clinics, tournaments, and other development initiatives.
Each year, the Foundation offers up to $1,500 for approved youth-focused activities that grow skills, participation, and passion for fastpitch. To apply, simply complete the appropriate form and send it to CFF Chair Greg Nydick.
Home » Qualifiers » Qualifiers » 2026 64th Seattle Invitational
Tournament Type
Official ISC Qualifier
Contact Information
Tournament Information
Tournament Dates
ISC Representative
UIC
