Jaume Munar vs Arthur Rinderknech — R64 — US Open

The serve was the separator, though it took a long time to say so. Rinderknech landed 22 aces to Munar's three and won 85 percent of his first-serve points against 67, numbers that only turned into daylight after an opening set that changed hands six times, the 26th seed's break for 6-5 in game 11 answered by an immediate break back in game 12 before a tiebreak settled it. Munar never converted another break point after that set: 0 for 3 the rest of the way. Cleaner tennis was no defense, as the 55th-ranked Munar kept his unforced errors to 15 against Rinderknech's 33 and still trailed 66 winners to 25 and 17 points overall. The finish was a break in game 12 for 7-5, three hours and six minutes in, and it leaves Rinderknech with his first win over Munar in three meetings on record.