Taylor Fritz vs Brandon Nakashima — QF — Cincinnati Open

Twenty-two aces, 41 winners to 23, and 97 of the 192 points played — the sixth seed led most of the sheet and lost. The market had made Fritz a 62 percent favorite; he converted 2 of 6 break points to Nakashima's 2 of 3. Both of those came in the third set, a break back in game 6 for 3-3 and the closer in game 8 for 5-3, against a man Fritz had won their last two meetings on record against. Two hours and 13 minutes put the 27th seed into a second Masters 1000 semifinal of the season, after the Canadian Open final, on a week that already holds Medvedev.