The Golden State Valkyries made their highly anticipated debut in the Women's National Basketball Association (WNBA) on May 16, 2025, at San Francisco's Chase Center. Despite a 67-84 loss to the Los Angeles Sparks, the event marked a significant milestone as the league's first expansion in 17 years. The game attracted a sellout crowd of over 18,000 fans, including notable attendees such as Golden State Warriors players and head coach Steve Kerr.

The Valkyries' establishment reflects the WNBA's ongoing growth and the increasing popularity of women's basketball nationwide. Awarded to the San Francisco Bay Area in October 2023, the team assembled its leadership and roster within 18 months. Jess Smith, formerly with Angel City FC, was appointed as the team's president, emphasizing the organization's commercial goals. Natalie Nakase, with 16 years of coaching experience and previously an assistant coach with the Las Vegas Aces, was named the Valkyries' first head coach in October 2024. Nakase's appointment is particularly noteworthy as she becomes the first Asian American head coach in the WNBA.

The team's roster features a blend of international talent and experienced players. Notably, Tiffany Hayes, the 2024 Sixth Player of the Year, joined the Valkyries, bringing significant experience and skill to the team. However, the team faced challenges, such as first-round draft pick Justė Jocytė's commitment to Lithuania's national team, delaying her joining the Valkyries.

Fan engagement has been robust, with over 10,000 full-season tickets sold, showcasing a distinct and enthusiastic fan base independent of the NBA's Golden State Warriors. The Valkyries' only preseason home game attracted 17,428 spectators, marking the third-highest preseason attendance in WNBA history.

The WNBA has experienced growth in attendance and viewership, with expectations high for the Valkyries and future expansion teams in Portland and Toronto by 2026. The Valkyries' debut marks a significant chapter in the WNBA's history, reflecting the league's expansion efforts and the growing popularity of women's basketball.

The establishment of the Valkyries in San Francisco reflects the increasing recognition and support for women's professional sports, contributing to greater gender equality in athletics. The team's presence is expected to inspire young athletes, particularly girls, in the Bay Area, promoting participation in sports and fostering a sense of community pride.

The Valkyries' next game is scheduled for Wednesday at 7 p.m. against the Washington Mystics at Chase Center.