The match lasted 4 hours, 37 minutes. That's nothing, of course, compared to the 11-plus hours Isner played across three days during a record-breaking victory that went to 70-68 in the fifth set at Wimbledon in 2010.
Haas was one point away from winning 12 times late in the fourth set Saturday, but couldn't close it out.
He was 2 for 22 on break-point chances until converting his 23rd when Isner put a volley in the net. Haas then served out the victory.