Karatsev d. Tiafoe

Karatsev beat Tiafoe 6-3, 7-6(4) in the first round at the Rakuten Japan Open - Tokyo. Karatsev won 74 of 142 points (52%). Karatsev hit 10 aces to 4 and won 71% of points behind the first serve (37/52) against 87% for Tiafoe. Karatsev converted 2 of 3 break points and saved 5 of 6 faced; Tiafoe converted 1 of 6. The match was played on hard in Japan.