Park Sung-joon of South Korea improved on his runnerup finish of a week ago, shooting a final-round 69 on Sunday to win the KBC Augusta by two strokes.
The 27-year-old Park, the co-leader after each of the first two rounds, carded four birdies against a lone bogey for his first victory on the JGTO tour. Hwang Jung-gon was two strokes back in second and doused his compatriot with water at the completion of the round.
"It feels really good," Park said in English. "I got close a couple of times."
The tournament was shortened to 54 holes after it took two days to play the second round after it was suspended on Friday.
Yoshinori Fujimoto, who started the final round in a tie for the lead along with Park and Satoshi Tomiyama, shot an even-par 72 to finish in a tie for third. Tomiyama was 2 over and finished in seventh.