John Isner claimed his fourth ATP Atlanta title on Sunday, saving a set-point in both sets en route to a 7-6 (8/6), 7-6 (9/7) win over Ryan Harrison. Second-seeded American Isner notched his second ATP title in as many weeks afer lifting the trophy in Newport last week. Atlanta was the perfect place for him to keep the momentum going. Isner, who has reached the final in seven of eight editions of the tournament, added a fourth title to those he won in 2013, 2014 and 2015. Harrison, seeded fourth, was denied a second career ATP title, to go with his victory in Memphis in February.