Since its inception, SwingVision has made monumental strides in the tennis industry, emerging as a leading innovator in advancing recreational play. Founded in 2019 by Swupnil Sahai and Richard Hsu, SwingVision was designed to be the most accurate single-camera solution for AI object tracking in tennis. The app assists with line calling while tracking statistics and metrics to help players improve their game.

Following a partnership between USTA Southern California and SwingVision in 2023, the technology has been tested and used in numerous junior and adult tournaments across the section. However, until March 21, 2025, it had never been implemented at the high school level. That all changed when SwingVision was used during a match between Marina High School and King High School, marking the first-ever high school competition to utilize the technology, not only in Southern California, but nationwide.

“Electronic line calling (ELC) systems are revolutionizing competitive tennis at all levels,” stated Maria Goldberg, USTA Southern California’s Senior Director of Competition. “Our collaboration with SwingVision has significantly enhanced USTA Southern California’s capacity to ensure fair play. By giving players the ability to challenge calls, SwingVision’s technology cultivates a less confrontational atmosphere and guarantees impartiality for all participants. Launching this initiative at the high school level will encourage sportsmanship among the next generation, as well as increase awareness and data collection.”

SwingVision not only aids with accurate line calling, but also plays a vital role in promoting sportsmanship and fostering a culture of respect and integrity on court—making its implementation especially impactful at the junior and high school levels where habits and values are formed early. Recognizing this, USTA Southern California has taken a bold step forward by bringing on Evan Sonny as the organization’s first full-time Coordinator of Sportsmanship, Officiating, and Fair Play. Evan joined the team in January and has quickly become a key player in supporting the Adult and Junior Competition Teams with the deployment of electronic line calling and the rollout of SwingVision across the section.

Beyond technology, Evan’s role signifies a deeper investment: helping establish a zero-tolerance policy for unsportsmanlike conduct and reinforcing the values that define the sport of tennis. His position is not just a new title, it’s a reflection of USTA Southern California’s long-term commitment to creating a more respectful, fair, and enriching environment for all players. From tournament directors to young athletes, Evan is a resource and a leader, helping to embed sportsmanship into the DNA of every event and interaction. His hire sends a clear message: sportsmanship is not a sideline priority, it’s central to the future of tennis in Southern California. The organization is committed to advancing sportsmanship initiatives in the years to come.

“Electronic line calling is so important at the junior level as it removes one of the biggest sources of tension during matches, that being disputed calls. When players trust the calls, they’re free to channel their energy into competing, not confronting. It restores the purity of the match and helps build a more respectful, sportsmanlike environment,” Evan mentioned. “It’s important that we continue to preach good sportsmanship not only for the players, but for the parents and spectators as well, and SwingVision will only help with that,” he said. “Sportsmanship isn’t just about following rules, it’s about showing respect for the game, your opponent and yourself. In every tournament, how players, coaches, and parents carry themselves sets the tone for the entire experience. It’s what turns a match into a memory worth keeping. Building sportsmanship means we’re not just building better athletes, but better people.” 

To bring this event to life, Evan worked closely with Chuck Kingman, the head coach at Marina High School and USTA Southern California Board Member. The event saw SwingVision used across six courts simultaneously, ensuring fair play and providing players the chance to engage with the technology. While the match was a friendly competition, the event was a resounding success, with both players and parents offering warm feedback and expressing their excitement about the innovation. 

“The possibility of using ELC in the future for high school matches is very exciting,” Chuck said. “Tennis is the only high school sport which doesn’t use umpires or officials of any kind. Players loved using the technology, and I’ve seen first hand how it changes the entire atmosphere of a match for players, parents, and spectators, making line calling issues less problematic and matches less adversarial.” 

As USTA Southern California looks toward the future, there’s an excitement about the continued growth and expansion of SwingVision, particularly at the high school level. SwingVision has the potential to bring accurate line calling, data-driven insights, and enhanced sportsmanship to tennis courts throughout the section, helping to shape the next generation of players. With SwingVision’s continued success, we’re excited to see how it will continue to transform the tennis landscape, and benefit our players and community in Southern California. We are grateful to both Marina High School and SwingVision, who have been great partners in making this breakthrough happen.