Mari Humberg and CJ Klinger Reached Semifinals: Mari Humberg and CJ Klinger had a breakthrough Friday, June 20, 2025, at the Select Medical Orange County Cup in San Clemente, California. The duo delivered the day’s biggest mixed doubles upset and followed it up with impressive wins in their respective gender doubles events to earn spots in Saturday’s semifinals.
No. 28 Seeds Shock Tuionetoa and Alshon
In mixed doubles, the No. 28-seeded pair of Humberg and Klinger stunned No. 3 seeds Etta Tuionetoa and Christian Alshon with an 11-8, 11-2 straight-game victory. The result marked one of the most unexpected upsets of the tournament.
A brief controversy arose during the second game when Alshon questioned the legality of Klinger’s serve, arguing that the contact point was too high. He appealed to referees, but the call stood, and the match continued.
The distraction did not faze Humberg and Klinger, who kept their momentum and cruised to the win.
More Wins in Gender Doubles
Their success didn’t stop there. Humberg next returned to the court alongside Meghan Dizon in women’s doubles. The pair eliminated No. 37 seeds Yufei Long and Jamie Wei with a dominant 11-6, 11-3 performance.
Klinger also picked up another big win, this time teaming with JW Johnson in men’s doubles. They defeated No. 8 seeds Tyson McGuffin and Noe Khlif in a thrilling three-game battle, finishing 11-5, 8-11, 11-5 on Humana Championship Court.
All Eyes on Semifinal Saturday
After a strong day of results, all three players will be in action again during Saturday’s semifinal rounds. In mixed doubles, Humberg and Klinger will face Jorja Johnson and JW Johnson.
Later, Humberg and Dizon will take on top seeds Anna Leigh Waters and Anna Bright in a highly anticipated women’s doubles matchup, while Klinger and JW Johnson will face Federico Staksrud and Hayden Patriquin in men’s doubles.
With momentum on their side, Humberg and Klinger are now poised to make deep runs on Semifinal Saturday.
View this post on Instagram
News in Brief: Mari Humberg and CJ Klinger Reached Semifinals
No. 28 seeds Mari Humberg and CJ Klinger upset Etta Tuionetoa and Christian Alshon in straight games, then advanced in gender doubles at the Select Medical Orange County Cup. Both will compete in Saturday’s semifinals after strong quarterfinal wins in mixed, women’s, and men’s doubles.
ALSO READ: Underdog Story Continues as Rafael Lenhard Advances to Quarterfinals at Orange County Cup