MASON − There are four Saturday semifinal spots still up for grabs at the Cincinnati Open. Those will be filled as quarterfinal action wraps up at the Lindner Family Tennis Center on Friday, Aug. 21.
An American man has not won the Cincinnati Open in 20 years.All three remaining Americans from the ATP tour will play on Friday in the quarterfinals. At least one will advance to the Cincinnati Open semifinals when No. 6 seed Taylor Fritz and No. 27 seed Brandon Nakashima battle on Center Court during the day session.
At night, Frances Tiafoe will face Lorenzo Musetti of Italy.
Cincinnati Open giant killer
On the WTA side, reigning Cincinnati Open champion Iga Swiatek advanced to the semifinals via walkover on Thursday. She's joined in the semifinals by Jessica Pegula, who defeated Amanda Anisimova.
Two other former Cincinnati Open champions will try to reach the semifinals on Friday. Madison Keys, who won it all in 2019, will face Sara Bejlek in the afternoon. Coco Gauff (2023 winner) ends the night session on Center Court against Marta Kostyuk.
Here's how a replay of how the quarterfinal action unfolded in Mason on Friday.
Coco Gauff advances to Cincinnati Open semifinals
WTA No. 4 seed Coco Gauff is through to the Cincinnati Open semifinals after a swift 6-2, 6-2 victory over No. 10 Marta Kostyuk on Center Court. She will face the unseeded Sara Bejlek in the final match on Center Court Saturday night.
Coco Gauff cruises in 1st set vs. Marty Kostyuk in Cincinnati Open quarterfinals
Coco Gauff took advantage of five double faults and broke Marta Kostyuk three times in a 6-2 win in the first set on Center Court.
Coco Gauff, Marta Kostyuk wrap up Cincinnati Open quarterfinals
A WTA top 10 match wraps up the quarterfinals as No. 4 Coco Gauff and No. 10 Marta Kostyuk are now warming up on Center Court. Gauff, the 2023 Cincinnati Open champion, has won 11 of her last 12 WTA 1000 quarterfinals, though the one loss was in Mason last year. Kostyuk is 13-0 this season against American opponents and a perfect 5-0 in quarterfinals.
Frances Tiafoe punches ticket to Cincinnati Open semifinals
It took four match points, but Frances Tiafoe finally secured a 7-6 (2), 7-5 win over Lornezo Musetti to reach the Cincinnati Open semifinals for the second time in three years (runner-up to Sinner in 2024).
The Cincinnati Open men's final on Sunday will feature an American as Tiafoe will battle compatriot Brandon Nakashima in the semifinals Saturday night.
Frances Tiafoe breaks Lorenzo Musetti, will serve for the match
Some incredible play at the net allowed Frances Tiafoe to break Lorenzo Musetti. The American will now have a second chance at serving for the match with a 6-5 lead.
Lorenzo Musetti saves match point, breaks Frances Tiafoe to extend match
Frances Tiafoe was serving for the match and got to match point before Lorenzo Musetti reeled off three consecutive points for the break. The second set is now tied 5-5 with Musetti serving.
Frances Tiafoe, Lorenzo Mussetti hold serve once again
Frances Tiafoe now needs a break to advance to the Cincinnati Open semifinals. He and Lorenzo Musetti each held serve and Tiafoe leads 5-3 with the ball heading back to Musetti's court.
Frances Tiafoe gets break, holds serve in 2nd set vs. Lorenzo Musetti
Frances Tiafoe got an early break, then held serve to take a 3-1 lead in the second set over Lorenzo Musetti.
Musetti did just hold serve to cut the deficit to 3-2.
Frances Tiafoe takes 1st set over Lorenzo Musetti in a tie break
Both Lorenzo Musetti and Frances Tiafoe held serve the rest of the way to enter a tie break, where Tiafoe prevailed, 7-2.
Lorenzo Musetti, Frances Tiafoe trade breaks in Cincinnati Open quarterfinals
Lorenzo Musetti and Frances Tiafoe each recorded a break thus far in the opening set of their quarterfinal matchup on Center Court. It's 3-3 with Tiafoe set to serve.
Brandon Nakashima advances to Cincinnati Open semifinals
Brandon Nakashima just defeated Taylor Fritz, 7-6 (9), 4-6, 6-3 on Center Court, winning the final four games to punch his ticket to the Cincinnati Open semifinals. Nakashima, who will debut in the ATP top 20 next week, leads the tour with 22 hard-court wins this year.
He is the first American to reach the semifinals in Canada and Cincinnati in a season in 15 years (Mardy Fish).
Taylor Fritz ties it against Brandon Nakashima on Center Court
Taylor Fritz recorded six aces and won 93% of points on the first serve to take the second set from Brandon Nakashima, 6-4. Center Court will now see a three-set quarterfinal for the second straight match.
Taylor Fritz gets first break of Cincinnati Open quarterfinal matchup
Down a set, No. 6 seed Taylor Fritz just broke Nakashima to take a 2-1 lead in the second set.
Madeira native Caty McNally falls in Cincinnati Open doubles semifinals
The duo of Marie Bouzkova and Linda Noskova defeated Madeira's Caty McNally and Iva Jovic 6-3, 6-2 in the Cincinnati Open doubles semifinals on Grandstand.
Brandon Nakashima takes opening set from Taylor Fritz in tiebreak
Taylor Fritz and Brandon Nakashima each held serve six times in the opening set on Center Court to go to a tiebreak, where Nakashima prevailed, 11-9. Fritz won more total points (42-38) while both Americans won over 85% of points on first serve.
All-American ATP matchup coming up on Center Court at Cincinnati Open
The ATP will have at least one American in the semifinals of the Cincinnati Open. No. 6 seed Taylor Fritz is getting ready to face No. 27 Brandon Nakashima in the quarterfinals on Center Court. Fritz is the only former ATP 1000 champion remaining in the field (2022 Indian Wells) and is 4-1 all-time against Nakashima.
Sara Bejlek outlasts Madison Keys in 3-set thriller to advance to Cincinnati Open semifinals
Madison Keys led the third-set tiebreak, 5-4, but lost back-to-back points on serve before Sara Bejlek delivered a game-winning forehand in a match that took 2 hours, 37 minutes.
Bejlek, who knocked out World No. 1 Aryna Sabalenka in the Round of 16, advances to her first-ever WTA 1000 semifinal.
Madison Keys-Sara Bejlek heads into 3rd set tiebreak
Madison Keys just held serve against Sara Bejlek to send the match into a third-set tiebreak.
Sara Bejlek holds serve to take 6-5 lead in 3rd set over Madison Keys
Madison Keys' return crashed into the net on back-to-back break points in the 11th game. Sara Bejlek won four consecutive points to take a 6-5 lead. Keys will now serve to try to send this match into a tiebreak.
Madison Keys, Sara Bejlek still tied in 3rd set of Cincinnati Open quarterfinals
Madison Keys and Sara Bejlek each held serve. We're now tied 5-5 with Bejlek set to serve in the third set.
Madison Keys, Sara Bejlek tied 4-4 in 3rd set of Cincinnati Open quarterfinals
Madison Keys just held serve in the eighth game, finishing it with just her second ace of the match, to tie the third set at 4-4.
Madison Keys closes the gap on Center Court
Madison Keys held serve, then broke Sara Bejlek to cut the third-set deficit to 4-3. Keys will now serve for the tie on Center Court.
Sara Bejlek closing in on Cincinnati Open semifinal berth
Sara Bejlek is in full control on Center Court right now after holding serve for a 4-1 lead in the third set.
Sara Bejlek gets early break in 3rd set against Madison Keys
Sara Bejlek held serve to begin the third set, then broke Madison Keys for a 2-0 lead. She's won 8 of 11 points overall and is now serving for a 3-0 lead.
Sara Bejlek battles back to force 3rd set against Madison Keys
Sara Bejlek won 82% of first serve points and converted a pair of breaks to win the second set over Madison Keys on Center Court, 6-4. Bejlek won five of the final six games after trailing 3-1 early. The match is going to a third set on Center Court to begin the day session at the Cincinnati Open.
Sara Bejlek not going away against Madison Keys
After missing her first five break points, Sara Bejlek finally converted on the sixth try as Madison Keys sent a return long. The second set is now tied 3-3 with Bejlek set to serve.
Madison Keys breaks, holds serve for 2nd set lead over Sara Bejlek
Madison Keys hit behind Sara Bejlek on break point to capture the third game of the second set, then held serve to take a 3-1 lead.
Madison Keys takes 1st set against Sara Bejlek in Cincinnati Open quarterfinals
Madison Keys just pumped her fist in celebration after clinching the first set over Sara Bejlek, 6-3. Keys won 84% of points on the first serve, got an early break and staved off a trio of break points to win the set.
Madison Keys off to stellar start on Center Court in Cincinnati Open quarterfinals
Madison Keys won 13 of the first 16 points against Sara Bejlek. She currently leads the first set, 4-1.
Madison Keys enters Center Court for match against Sara Bejlek
Madison Keys' only WTA 1000 win came here in Cincinnati (2019). She just entered Center Court for her first WTA 1000 quarterfinal since 2025 (Montreal) against Sara Bejlek, who is making her first appearance in a WTA 1000 quarterfinal.
Madeira's Caty McNally still alive in Cincinnati Open doubles
Madeira native Caty McNally will play in the doubles semifinals alongside partner Iva Jovic on Aug. 21. McNally-Jovic has won three matches over the last four days, all in a 10-point third-set tiebreak. McNally-Jovic will face the tandem of Marie Bouzkova-Linda Noskova on Grandstand to wrap up Friday's day session.
Where is the Cincinnati Open played?
The Cincinnati Open is played at the Lindner Family Tennis Center in Mason. The venue underwent a $260 million renovation prior to the 2025 tournament.
Cincinnati Open 2026 schedule
Here is the schedule for each remaining session of the 2026 Cincinnati Open.
Friday, Aug. 21: Quarterfinals (Day), Quarterfinals (Night)
Saturday, Aug. 22: Semifinals (Day), Semifinals (Night)
Sunday, Aug. 23: Finals (Day)
This article originally appeared on Cincinnati Enquirer: Replay | ATP, WTA quarterfinal results at the Cincinnati Open
