Adam Walton vs Jakub Mensik — R64 — Miami Open

Jakub Mensik dropped the opener and then made his serve untouchable, winning 82% of first-serve points to Adam Walton's 57% across the final two sets of a 3-6 6-2 6-4 turnaround. The flip came immediately after the break: Mensik broke to open the second set and broke again in game seven, then took the decider with a single break in game three. His 16 aces and 33 winners outpaced Walton's 6 and 17, though 45 unforced errors kept it from being clean. A match point came and went before Mensik closed it out. He draws Frances Tiafoe next.