Rianne Mikhaela Malixi missed a 10-foot birdie putt on the first extra hole, allowing overnight leader Natthakritta V. of Thailand to win the 88th Singha Thailand Amateur Open in Bangkok, Thailand Friday.

Four down at the start of the day, the 15-year-old Filipina rallied with five-under-par 65 to force a playoff with Natthakritta who closed with a 69.

Malixi collected seven birdies against two bogeys to finish 72 holes on 10-under par 270, the same output as Natthakritta.

During the playoff, both Malixi and Natthakritta reached the green in regulation, although the Thai was closer to the hole at five feet.

After Malixi missed her birdie try, Natthakritta sealed the win by sinking the putt.

Lois Kaye Go finished in a tie for 10th on 11-over after a 71, Mafy Singson was 20-over after a 76, Sunshine Berry Zhang was 32-over following a 71 and Abby Abarcas was 45-over after an 83.

In boys' action, Shinichi Suzuki closed with even-par 70 to finish fifth in the 88th Singha Thailand Amateur Open in Bangkok, Thailand Friday.

The 14-year-old made two bogeys in the first eight holes before he birdied 9 and 10. He dropped a shot on 11 before making his last birdie on 14.

He finished on 4-over 284, eight shots behind Ashita P. of Thailand who sizzled for 65.

Tied for second on even-par 280 were Supapon A. and Arsit A. who carded 65 and 68, respectively.

Gabriel Manotoc and Kristoffer Arevalo were the next-best Filipinos on 18-over 298 after a 67 and 74, respectively.

Manotoc made seven birdies against four bogeys to post his best round in the tournament.

Edison Tabalin wound up on 22-over 302 after a 72 while Jet Hernandez was 31-over 311 following a 78.

Leandro Luis Bagtas finished on 32-over 312 following a 76.