Dallas Open: Koepfer beats Hijikata to make last eight

German Dominik Koepfer, the No 8 seed, advanced to the quarter-finals of the Dallas Open by winning against Australian Rinky Hijikata 6-3, 7-6 (5) at the Styslinger/Altec Tennis Complex.

Koepfer, ranked No 60, will play American Tommy Paul, the second seed, next.

In the previous round of the Dallas tournament, the German defeated American Aleksandar Kovacevic (6-4, 7-6 (5)).

Hijikata, ranked No 88, beat American wildcard Ethan Quinn (6-4, 6-4) in the first round of the Dallas tournament.

Dallas ATP 250, other second-round results (Styslinger/Altec Tennis Complex, hard, USD 756.020, most recent results first):

• Adrian Mannarino vs. Yoshihito Nishioka
• Frances Tiafoe vs. Alex Michelsen
• Jordan Thompson vs. Denis Kudla
• Tommy Paul beat Taro Daniel: 6-3, 6-2
• Ben Shelton (3) beat Michael Mmoh: 6-3, 6-3
• James Duckworth beat Christopher Eubanks (5): 7-6 (3), 6-4
• Marcos Giron beat Max Purcell (6): 6-4, 6-3