HALLE, Germany — Ivo Karlovic served an ATP record 45 aces in beating third-seeded Tomas Berdych on Friday, while Roger Federer and Kei Nishikori also progressed to the Gerry Weber Open semifinals.
Karlovic defeated Berdych 7-5, 6-7 (8), 6-3, finishing it off with an ace on match point as the big-serving Croat eclipsed the previous ATP record of 44 for a best-of-three-sets match, which he shared with Mark Philippoussis.
"I always like when I'm best at something, so if it's aces I'm happy about it," said Karlovic, who hit 44 aces at Zagreb in February last year.