The first-round match already had lasted 10 hours, nearly 3½ hours longer than the previous mark. The fifth set alone has lasted 7 hours, 6 minutes.
The match continued in the same fashion Thursday, with both players holding serving easily. By the time they reached 63-63, Isner had a match total of 105 aces and Muhat had 101.
Isner and Mahut split the first four sets Tuesday, before it became too dark to play. They began the fifth set Wednesday at 2:04 p.m., and play was halted at 9:10 p.m., because of darkness.