Zverev d. Altmaier

Zverev beat Altmaier 7-6(1), 3-6, 6-4, 6-3 in the second round at the U.S. Open - New York. Zverev won 143 of 267 points (54%). Zverev hit 7 aces to 5 and won 70% of points behind the first serve (55/79) against 61% for Altmaier. Zverev converted 6 of 26 break points and saved 3 of 8 faced; Altmaier converted 5 of 8. Altmaier double-faulted 7 times. Winners to unforced errors: 48–52 for Zverev, 26–49 for Altmaier. The match was played on hard in United States.