Australian Nick Kyrgios recorded his second career title on Sunday when he fought off top-seeded John Isner 7-6 (3), 7-6 (4) in the championship match of the Atlanta Open.
The second-seeded Kyrgios ended Isner's 15-match winning streak in Atlanta. Isner had won the event each of the past three years.
"I knew I could do it," Kyrgios said. "I knew I had the game, but it's always tough against him. I could play him 50 more times and only beat him once. He's the type of player that's not really going to give you anything."
Isner struggled with his fitness -- and his legs -- in the humid conditions. The 31-year-old American was outplayed in both tiebreaks by the 21-year-old Kyrgios.
Isner missed an early opportunity to create distance when he won the opening game and went up 40-0 in the second. But Kyrgios rallied to force deuce and eventually won the game.
"That definitely settled him down," Isner said. "If I go up 2-0, there's a good chance that set's over. He started serving much better."
Kyrgios agreed that the early comeback propelled him toward victory.
"Obviously, I know that serving was very crucial against John and I came out love-40 and knew I couldn't come out slower," Kyrgios said. "I gained a lot of confidence getting out of that and just getting into the match and getting on the scoreboard helped a lot. It would have been quite a different story if he got me that game."
However, Kyrgios made it clear there was nothing easy about beating the 6-foot-10 Isner and ending his dominance in Atlanta.
"I knew it was going to be tough from the get-go," Kyrgios said. "I knew that I had to come out with some special stuff today, and I thought I did in the tiebreaks. It was a couple lucky points here and there, and that's what it's going to come down to with John."
Duan Ying-Ying of China captuerd the Jiangxi Open championship in Nanchang, China, upending sixth-seeded American Vania King 1-6, 6-4, 6-2 in the final.
Duan recovered after dropping the first set for his first WTA Tour singles title in the first final of her career.
"Vania played really well in the first set," Duan said. "My coach gave me some advice during the second set. He asked me to improve my speed a bit and I did so. It worked."
After going down a break in the second set, Duan broke back and went on to take the second set. In the third set, she rode an early service break to the win.
The 27-year-old King had reached the final in a WTA event for the first time since 2013.