Martin Damm vs Frances Tiafoe — R128 — US Open

Two sets to one down, 0 for 4 on break points in a third set Damm had bookended with breaks in game 4 (for 3-1) and game 9 (for 6-3), Tiafoe was a set from losing his opener at the US Open. The second serve separated them. Tiafoe won 54 percent of his second-serve points to Damm's 44, and the decider ran the same way, the 92nd-ranked man adding three double faults while the 11th seed made four unforced errors and won 92 percent behind his first serve, breaking in game 7 for 4-3. Damm out-aced him 28 to 11 and out-hit him 72 winners to 38, and still finished level on points at 156 apiece. Three hours and 48 minutes to beat a man he had needed four sets to get past here a year ago, and Tiafoe is through to the second round.