Osaka d. Mertens

Osaka beat Mertens 6-2, 7-6(5) in the semifinals at the Western & Southern Open - New York. Osaka won 89 of 171 points (52%). Osaka hit 4 aces to 3 and won 71% of points behind the first serve (37/52) against 69% for Mertens. Osaka converted 5 of 9 break points and saved 18 of 21 faced; Mertens converted 3 of 21. The match was played on hard in United States.