Justin Rose is No. 1 in the world again and this time it feels even more special.
More than having the top ranking, the Englishman goes home with a trophy.
Rose rallied from a three-shot deficit going into the final round with a three-under 68 and then defeated Haotong Li of China on the first play-off hole with a par to win the Turkish Open for the second straight year.
The first time Rose reached No.1 in the world was two months ago, a bittersweet moment because he lost the BMW Championship in a playoff to Keegan Bradley.
"This time I've got some silverware," Rose said, after he supplanted Brooks Koepka at golf's summit.
"Last time it was muted because I was still so mad at not winning the tournament at the BMW.
"But this time I've got the double kind of winning feeling, so it might be a bit more fun to celebrate it at this time."
Rose needed some help from Li , who closed with a 71 and lost the playoff with a three-putt bogey from just inside 10 feet.
"It's a tough day for me," Li said.
"I think I played well the whole week but didn't hole a few putts on the last and that was it."
It was the 21st victory worldwide for Rose and the first time he had successfully defended a title.
The 38-year-old said the season was the best golf of his career "as a collective body of work."
Belgian Thomas Detry and Spaniard Adrian Otaegui both finished with rounds of 65 to share third at 15 under in Turkey.
Dane Lucas Bjerregaard (67) and German Martin Kaymer (66) ended the tournament at 14 under in a tie for fifth.
Jason Scrivener closed with a 71 on Sunday to be best of the Australians in a share of 23rd with Lucas Herbert (69) tied for 35th, Wade Ormsby (73) equal 47th and Scott Hend (72) among a quartet at 68th.