Peter Gojowczyk upsets defending champion Ivo Karlovic in Newport
Gojowczyk, a 28-year-old German, overcame 30 aces from the second-seeded Croatian.
Jul 20, 2017 by AP
Defending champion Ivo Karlovic tops Kudla in Hall of Fame tourney
Top-seeded John Isner used 13 aces to beat Australia's Sam Groth, 6-2, 6-4.
Jul 19, 2017 by AP
Anett Kontaveit, Gilles Muller continue breakthrough seasons
The up-and-comer and the veteran win the titles at the Ricoh Open on grass.
Jun 18, 2017 by Van Sias
Venus, 36, and Karlovic, 38, advance to second round of French Open
Williams, who is seeded 10th, saved two set points in a 6-4, 7-6 win over Qiang Wang.
May 28, 2017 by AP
Court Report: Zverev, Kyrgios survive in third-set tiebreakers
The German ousted John Isner; Kyrgios knocked off Ivo Karlovic.
Mar 28, 2017 by Brad Kallet
Nikoloz Basilashvili upsets No. 1 seed Ivo Karlovic in Memphis
In other second-round action, fourth-seeded Steve Johnson beat Tim Smyczek.
Feb 16, 2017 by AP
WATCH: Safarova saves 9 match points, wins; Karlovic d. Zeballos 22-20
Karlovic—who hit 75 aces—and Zeballos set the record for most games played at the Oz Open.
Jan 17, 2017 by Brad Kallet
Davis Cup delivers again as Delbonis and del Potro end Argentina’s hex
Argentina and Croatia proved again that Davis Cup never disappoints. Our finals recap.
Nov 27, 2016 by Steve Tignor