Raducanu lost 6-2, 6-4 in the second round, ending her 10-match winning streak that began in New York. She received a wild-card into the combined ATP and WTA tournament in the Southern California desert.
It was Raducanu’s fifth Tour-level event since making her WTA Tour debut in June.
“I’m kind of glad that what happened today happened so I can learn and take it as a lesson so going forward I’ll just have more experience banked,” she said.
Former world No. 1 Andy Murray beat Adrian Mannarino 6-3, 6-2 in his first match as a wild-card. Murray fired five aces and connected on 82% of his first serves against the French lefty-hander. Murray converted three of six break points; Mannarino failed in his lone chance to break.
Leyla Fernandez, who lost to Raducanu in the U.S. Open final, defeated Alize Cornet 6-2, 6-3. Fernandez converted 5 of 9 break points and hit 71% of her second serves.
Sasnovich, a 27-year-old from Belarus ranked 100th in the world, reached the doubles semifinals last month at the U.S. Open while Raducanu was completing a stunning run from qualifier to champion at age 18.
“Emma just won the U.S. Open and I lost there in the first round,” Sasnovich said, “so it was a little bit different.”
Sasnovich got service breaks to take leads of 3-1 and 5-2 and close out the set in 30 minutes without ever losing her serve.
Raducanu rallied in the second set, taking a 4-2 lead. But Sasnovich broke for a fifth time and led 5-4 before serving out the match. Sasnovich won 53% of her second serves to just 29% for Raducanu.
“I’m still so new to everything,” Raducanu said. “The experiences that I’m going through right now, even though I might not feel 100 percent amazing right now, I know they’re for the greater good.”
Sasnovich advanced to play No. 11 seed Simona Halep in the third round. Halep beat Marta Kostyuk 7-6 (2), 6-1.
Iga Swiatek needed just 71 minutes to dispatch Petra Martic 6-1, 6-3.
The last time the tournament was played in 2019, Swiatek lost in qualifying. Now, she’s the No. 2 seed and the 2020 French Open champion.
Swiatek won nine of the first 10 games against Martic before the Polish star got broken twice and fell behind 0-3 in the second set. Swiatek rallied to win the next six games and close out the match.
“In 2019, I wasn’t playing that confident, but I’m really happy that times have changed now,” Swiatek said. “In the second set, I lost focus for one game and she broke me pretty fast, so I knew I just had to keep going and not stop for a second time.”
No. 4 seed Elina Svitolina beat Tereza Martineova 6-2, 7-5. No. 7 Petra Kvitova beat Arantxa Rus 6-2, 6-2. Ninth-seeded Anatasia Pavlyuchenkova topped American Madison Keys 6-3, 6-1.
Victoria Azarenka advanced via walkover when Magda Linette quit trailing 7-5, 3-0. Shelby Rogers routed Kristina Kucova 6-2, 6-2. No. 19 Jessica Pegula beat Sloane Stephens 6-2, 6-3.
On the men’s side, Americans Jenson Brooksby and Ernesto Escobedo won their first-round matches. Brooksby beat Cem Ilkel 7-6 (5), 6-4, and Escobedo defeated Holger Rune 6-4, 6-1.