US Clay Court Championships: Fifth seed Wolf reaches quarter-finals

No 5 seed J.J. Wolf moved into the last eight of the US Clay Court Championships by winning against Denis Kudla 6-4, 6-1 at River Oaks Country Club in Houston on Saturday.

Wolf, ranked No 54, will face Dutchman Gijs Brouwer next.

J.J. Wolf defeated Australian Jordan Thompson (6-3, 6-2) in the previous round of the Houston Open.

In the previous round of the Houston Open, Kudla, ranked No 137, edged out Australian qualifier Aleksandar Vukic (6-4, 4-6, 6-4).

Houston ATP250, other second-round results (River Oaks Country Club, clay, USD 642.735, most recent results first):

• Yannick Hanfmann vs. Tommy Paul
• Marcos Giron vs. Tomas Machac
• Cristian Garin vs. Zizou Bergs
• Tomas Martin Etcheverry vs. Max Purcell
• Frances Tiafoe vs. Steve Johnson: saturday
• Gijs Brouwer beat John Isner (4): 6-4, 7-6 (4)
• Daniel Elahi Galan vs. Jason Kubler: saturday