Anna Kalinskaya vs Anastasia Zakharova — R64 — Miami Open

Zakharova, ranked #74, dropped the opener 6-3 but won 61% of her second-serve points to Kalinskaya's 43% — the 18-point swing that flipped the match against the No. 21 seed. After leveling 6-1, Zakharova traded breaks in the decider before closing it out with breaks in games 9 and 11, surviving two match points along the way. She also won 57% of her second-return points. She moves on to face Victoria Mboko, the same player who knocked Kalinskaya out of Indian Wells.