Nishikori d. Karlovic

Nishikori beat Karlovic 6-3, 6-4, 7-6(4) in the fourth round at the U.S. Open - New York. Nishikori won 104 of 187 points (56%). Nishikori hit 6 aces to 21 and won 84% of points behind the first serve (47/56) against 77% for Karlovic. The second serve told: 70% won for Nishikori, 47% for Karlovic. Nishikori converted 2 of 7 break points and saved 2 of 2 faced; Karlovic converted 0 of 2. Winners to unforced errors: 44–7 for Nishikori, 35–23 for Karlovic. The match was played on hard in United States.