Tiafoe d. Tien

Tiafoe beat Tien 6-2, 7-5, 6-1 in the first round at the U.S. Open - New York. Tiafoe won 114 of 196 points (58%). Tiafoe hit 10 aces to 4 and won 79% of points behind the first serve (37/47) against 54% for Tien. Tiafoe converted 8 of 25 break points and saved 2 of 4 faced; Tien converted 2 of 4. Tien double-faulted 6 times. Winners to unforced errors: 37–41 for Tiafoe, 20–32 for Tien. The match was played on hard in United States.