Petkovic advanced to the quarterfinals of Cluj-Napoca on Wednesday after defeating Jaqueline Cristian by a score of 6-4, 6-3.

Krunic won 6-3, 6-3 over Ana Bogdan in the second round of Cluj-Napoca on Wednesday.

Liu advanced to Round 2 of San Jose on Tuesday after beating Dayana Yastremska by a score of 6-3, 4-6, 6-4.

Stephens won 6-4, 6-2 over Catherine McNally during Round 1 of San Jose on Tuesday.

Collins won 6-4, 6-3 over Shelby Rogers in the first round of San Jose on Tuesday.

Auger-Aliassime won 2-6, 6-2, 6-2 over Andreas Seppi in the second round of Washington on Tuesday.

Eala won 7-5, 6-2 over Paula Ormaechea in the first round of Cluj-Napoca on Monday.

Mendez won 6-2, 6-2 over Jana Fett in the first round of Cluj-Napoca on Monday.

Isner won 7-6 (8), 7-5 over Brandon Nakashima in the final of Atlanta on Sunday.

Martinez lost 6-1, 4-6, 6-3 to Casper Ruud in the final of Kitzbuhel on Saturday.

Khachanov lost 6-3, 6-1 to Alexander Zverev in the final of the Tokyo Olympics on Sunday.

Zverev won 6-3, 6-1 over Karen Khachanov in the final of the Tokyo Olympics on Sunday.

Nakashima won 3-6, 6-4, 6-3 over Emil Ruusuvuori in the semifinals of Atlanta on Saturday.

Isner won 7-6 (4), 5-7, 6-3 over Taylor Fritz in the semifinals of Atlanta on Saturday.

Ruud won 6-1, 4-6, 6-3 over Pedro Martinez in the final of Kitzbuhel on Saturday.

Tsurenko (elbow) will play Elena-Gabriela Ruse in the first round of Cluj-Napoca.

Stephens (knee) will play Catherine McNally in the first round of San Jose.

Raducanu (illness) will play Shuai Zhang in the first round of San Jose.