The Golden State Open Judo Championships, is one of the premier events in the United States Judo circuit. Operational since 1990, this tournament has become a cornerstone of competitive judo in the country. As part of the sanctioned USA Judo national point tournament series, this event always brings in some of the country's top judo athletes together for an intense weekend of competition, skill-building, and community support. Despite being “just a non‑profit, rec‑center judo organization,” we made history as the first group in the nation to host a judo tournament at the Los Angeles Convention Center in May 2025—setting the stage for the venue’s role as the home of Olympic judo in 2028.

The Golden State Open not only serves as a key event for competitive judo but also as a major fundraiser for the Guerreros Athletic Foundation, the non-profit arm of Guerreros Judo Club based in the City of La Puente. All funds raised go towards supporting the next generation of judo athletes, providing them with resources and opportunities to excel in the sport.

After celebrating 50 years of building champions & nurturing the sport of judo in Southern California, Guerreros Judo has a legacy of excellence that sets the Golden State Open apart from other tournaments. We understand exactly what athletes, coaches, and spectators need from a tournament. Known for innovation and a commitment to the judo community, Guerreros Judo was the first in the nation to adopt SmoothComp software for a judo tournament. It streamlines match orders and provides a more efficient & transparent tournament experience for both competitors and coaches. Thanks to this innovation, the Golden State Open is recognized as one of the most multi-division-friendly events in the country, welcoming competitors of all levels while maximizing mat time.

The tournament is held at the Los Angeles Convention Center, the future venue for judo competitions during the 2028 Summer Olympics. Athletes and spectators alike have a chance to experience the Olympic-level atmosphere in one of the most iconic venues in sports.