Dallas Open: Isner reaches quarter-finals

American John Isner, the No 5 seed, won against German Daniel Altmaier 6-3, 7-6 (1) to move into the quarter-finals of the Dallas Open at the Styslinger/Altec Tennis Complex on Thursday night.

Isner, ranked No 39, will face Ecuadorian Emilio Gomez next.

In the previous round of the Dallas tournament, the 37-year-old American beat Chun-Hsin Tseng (7-6 (5), 7-6 (1)), his first victory in 2023.

Altmaier, ranked No 99, defeated American qualifier Zachary Svajda (6-2, 6-4).

Dallas ATP250, other second-round results (Styslinger/Altec Tennis Complex, hard, USD 737.170, most recent results first):

• Oscar Otte vs. Marcos Giron
• Taylor Fritz vs. Jack Sock
• Adrian Mannarino (8) beat Jordan Thompson: 6-2, 7-6 (3)
• Emilio Gomez beat Miomir Kecmanovic (4): 2-6, 7-6 (4), 6-4
• Yibing Wu beat Denis Shapovalov (3): 7-6 (1), 6-4
• Frances Tiafoe (2) beat Mackenzie McDonald: 6-1, 6-3
• J.J. Wolf (6) beat Radu Albot: 6-3, 7-6 (5)