NEWPORT (Rhode Island), July 7: Top seed John Isner won through to the quarter-finals of the Hall of Fame Championships by beating France’s Arnaud Clement in straight sets.

Isner took the second-round match 7-6, 6-4 by winning 80 percent of his first serve points at the grass court ATP tournament on Wednesday.

The 6ft 9in, 26-year-old Isner also used his booming serve to hammer 11 aces.

Isner seized control when he broke Clement in the seventh game of the second set to take a 4-3 lead after the Frenchman double-faulted on the final point.Isner will next face American compatriot Alex Bogomolov in the semi-finals.

Results (prefix number denotes seeding):

Second round: Denis Kudla (US) bt 2-Grigor Dimitrov (Bulgaria) 6-1, 6-4; 8-Tobias Kamke (Germany) bt Donald Young (US) 7-6 (7-3), 6-4; 1-John Isner (US) bt Arnaud Clement (France) 7-6 (8-6), 6-4; Edouard Roger-Vasselin (France) bt Jimmy Wang (Taiwan) 7-5, 6-4; Michael Yani (US) bt Tommy Haas (Germany) 5-2 – Haas retired; 5-Alex Bogomolov Jr (US) bt Ruben Bemelmans (Belgium) 2-6, 6-0, 6-1; 6-Olivier Rochus (Belgium) bt Nicolas Mahut (France) 6-4, 7-6 (7-3); Matthew Ebden (Australia) bt Matthias Bachinger (Germany) 2-6, 6-4, 6-4.