ATLANTA (AP) — John Isner rode an overpowering service game to his fourth Atlanta Open title and second consecutive ATP tournament, beating fellow American Ryan Harrison 7-6 (6), 7-6 (7) on Sunday before a friendly crowd at Atlantic Station.

Having won eight straight matches all in straight sets since bowing out in the second round at Wimbledon earlier this month, the second-seeded former University of Georgia star said he thoroughly enjoys playing in Atlanta, where’s he’s made the finals in seven of the eight tournaments.

He also won titles here in 2013-’15, and is 27-4 on the courts near his alma mater. The 32-year-old Isner won the Hall of Fame Open last week on grass in Newport, Rhode Island.

“This is always going to be my favorite time of year,” he said about the hard-court season. “I couldn’t ask for a better start, obviously . . . I landed on Monday, had a practice on Monday night and things felt good right away. I was on a good roll.”

The match followed service in the first set to force a tiebreaker.

Harrison, the fourth seed, rallied from a 2-4 deficit to level the breaker at 6-6 only to see Isner win with a sizzling forehand to the deep right corner.

Isner fired 23 aces to Harrison’s 10, but after 75 straight service games without being broken he was passed on the forehand side early in the second set to trail 2-0. That ball, at 40-30 Harrison, was originally called out but, after Harrison challenged a replay revealed that it just caught the line.

Isner broke back in the next game when Harrison sent what looked like an easy forehand long.

From there, the friendly foes remained on serve to reach another tiebreaker upon Isner’s 18th ace.

He attributed his winning streak partly to his loss at…