Isner has won both their previous matches. Both were in 2015. He won in straight sets on a hard court and 3 sets on clay.
Isner has won this title for the last 3 years. Only Andy Roddick and Mardy Fish have beaten Isner in Atlanta.
Kyrgios has extra motivation as he wants to show that he should have been playing at the Olympics. The sets are going to be very tight. At least 1 tie break is pretty much guaranteed. Hard court stats are better for Kyrgios but I am going with Isner to win in a 3rd set tie break.
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