Daria Snigur vs Madison Keys — R64 — Cincinnati Open

The serve was the separator, and only after the opening set: Keys won 64 percent of her first-serve points in the set she dropped, then 78 and 76 in the two that followed, while Snigur slid from 66 to 62 and hit no aces at all against the American's 14. The decider had one swing in it. The 20th seed broke in game 3 for 2-1 and was not broken again; Snigur, three of ten on break points to that stage, drew two more chances in the third and took neither. She saved a match point before it ended at two hours and seven minutes, sending Keys into the Cincinnati round of 32 after a first-round bye and a lopsided Toronto loss to Kostyuk.