Justin Thomas birdied four of his last six holes to hold off a spirited charge by Adam Scott and earn his maiden PGA Tour victory Sunday at the CIMB Classic. Thomas' six-under-par 66 left him at 26-under for the tournament, one stroke better than former Masters winner Scott, who nearly snagged a come-from-behind victory with a superb 63. Thomas, who led after the second and third rounds, nearly threw it all away down the stretch when he chunked a shot into the water on the 14th hole for a double bogey. "But I just kept telling myself I controlled the tournament before that shot, so I just need to get back in it," said Thomas, 22, who set a course record 61 in the second round. The American rallied to birdie the next three holes and went on to clinch the win, $1.26 million in prize money, and 500 FedEx Cup points. The hot, humid conditions at the par-72 Kuala Lumpur Golf and Country Club had yielded a slew of sub-65 rounds throughout the tournament, and nothing less than a scintillating performance would win it on Sunday. Scott, who failed to win a tournament in the 2015 season, nearly caught Thomas by shooting the round of the day, a bogey-free nine-under 63 that included an eagle on the par-5 third. But a long eagle putt on 18 that could have tied it went wide. Americans Brendan Steele and Kevin Na tied for third at 24-under after respective rounds of 68 and 67. Japan's Hideki Matsuyama finished in sole fifth place, two strokes further back. Seventy of the 77 golfers who completed the tournament finished under par. Kim wins Blue Bay Kim Sei-young made a 6-foot birdie putt on the par-5 18th for a one-stroke victory Sunday in the Blue Bay LPGA. The 22-year-old South Korean player won for the third time in her rookie season on the LPGA Tour, closing with a 2-under 70 at difficult Jian Lake Blue Bay for a 2-under 286 total. Third-ranked Stacy Lewis, fellow American Kim Kaufman and Taiwan's Candie Kung finished a stroke back. Kim holed her winning putt after playing partners Lewis and Kung missed birdie tries — Lewis from 20 feet and Kung from 10. Lewis finished with a 70 for her sixth runner-up finish of the season and the 21st of her career. She won the last of her 11 LPGA Tour titles in June 2014. Kung shot a 71. Kaufman, playing a group ahead, had a 69 for the best round of the day. Kim won playoffs this year in the Bahamas and Hawaii in events also played in strong wind on seaside layouts. The five-time Korea LPGA winner earned $300,000 to move up a spot to fourth on the money list with $1,727,436 and is projected to jump from 11th to eighth in the world. Top-ranked Lydia Ko shot her second straight 70 to tie for eighth at 4 over. She had the best weekend total in the field after opening with rounds of 77 and 75. Ko won the LPGA Taiwan by nine strokes last week to regain the No. 1 spot from Park In-bee.