Gerry Weber Open: Ivo Karlovic hits record 45 aces in his win over Tomas Berdych

Ivo Karlovic serves against Tomas Berdych in the quarterfinal

Big serving Ivo Karlovic caused an upset in the quarterfinals of the Gerry Weber Open taking out No. 3 seed Tomas Berdych 7-5, 6-7 (8), 6-3.

With this win, Karlovic broke the record for most aces served in a best of three sets match. The Croat shared the previous record of 44 aces with Australian Mark Philippousis.

The men’s singles record in a match stays with John Isner who hit 113 aces against Nicolas Mahut in the marathon match at Wimbledon in 2010.

Karlovic broke Berdych’s serve at 5-5 in the opening set when the Czech double faulted. Karlovic saved three set points in the second set, but sqaundered a match point opportunity when he hit a return into the net.

The Croat broke Berdych’s serve early in the third set to take a 3-1 lead before finishing things off with an ace on match point.

"I just knew there was a lot of aces, but I didn't know it was that many," Karlovic said. "The record will always be there, it will always be written. I'm extremely happy."

Karlovic will take on Roger Federer on Saturday for a place in the final.