US Clay Court Championships: Hanfmann makes second round, Paul next

German qualifier Yannick Hanfmann won against Japanese qualifier Yosuke Watanuki 6-4, 3-6, 6-2 to advance to the second round of the US Clay Court Championships at River Oaks Country Club in Houston on Tuesday.

Hanfmann, ranked No 134, will play second seed Tommy Paul next.

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

• Max Purcell vs. Daniel Altmaier
• Tomas Machac vs. Jack Sock
• Marcos Giron vs. Emilio Gomez
• Tomas Martin Etcheverry vs. Juan Manuel Cerundolo
• Hugo Dellien vs. Cristian Garin: tuesday
• J.J. Wolf (5) beat Jordan Thompson: 6-3, 6-2
• Steve Johnson (WC) beat Facundo Bagnis: 7-6 (5), 1-6, 6-1
• Jason Kubler (6) beat Fernando Verdasco (WC): 7-6 (7), 6-0
• Gijs Brouwer beat Aleksandar Kovacevic: 6-4, 6-4
• Denis Kudla beat Aleksandar Vukic (Q): 6-4, 4-6, 6-4
• Daniel Elahi Galan beat Zhizhen Zhang: 6-2, 6-3