John Isner advanced to his fifth successive Atlanta Open final after defeating Gilles Muller on Saturday.
Isner reached last year's decider, having won three consecutive titles in 2015, 2014 and 2013, and the second seed booked another spot in the Atlanta showpiece.
The towering American accounted for third seed Muller 6-4 6-2 without dropping serve, erasing all four break points.
"It was a very good match. Absolutely nothing to complain about today. On and off the court in pretty quick fashion and I certainly will be ready to go tomorrow," Isner said.
"I feel great physically, maybe the best I have felt in quite some time. More importantly than that I am pretty confident as well."
Standing in the way of Isner and a fourth Atlanta crown is countryman Ryan Harrison.
Harrison overcame Brit Kyle Edmund 6-7 (5-7) 6-3 6-4 in Saturday's second semi-final.