John Isner won his fifth Atlanta Open title on Sunday, with a 5-7, 6-3, 6-4 win over Ryan Harrison to beat the fellow American in the final for the second straight year.

Isner, 33, earned his second win of 2018 and a record fifth in Atlanta to go with previous wins in 2013, 2014, 2015 and 2017. The top seed served out the match to love in the 10th game of the third set, clinching victory with a powerful serve down the line. Isner is having one of the best seasons of his career.