The Associated Press

HILTON HEAD ISLAND, S.C. — C.T. Pan took advantage of Dustin Johnson’s back-nine meltdown to win the RBC Heritage for his first PGA Tour victory.

The 27-year-old Pan, from Taiwan, closed with a 4-under 67 on Sunday at Harbour Town Golf Links for a one-stroke victory over Matt Kuchar. Pan finished at 12-under 272.

The top-ranked Johnson, the third-round leader in his home-state event, had a 77 to tie for 28th at 4 under. He played a five-hole stretch in 7 over, making bogeys on Nos. 11-13 and double bogeys on Nos. 14-15.

Pan took the lead for good with a 9-foot birdie putt on the par-4 16th.

Kuchar closed with a 67.

Patrick Cantlay, Scott Piercy and Shane Lowry tied for third at 10 under. Cantlay and Piercy shot 69, and Lowry had a 70.

Also:

Henderson defends Lotte Championship title: KAPOLEI, Hawaii — Brooke Henderson successfully defended her Lotte Championship title Saturday to tie Sandra Post’s record for LPGA Tour victories by a Canadian with eight. The 21-year-old Henderson closed with a 2-under 70 at Ko Olina Golf Club for a four-stroke victory over Eun-Hee Ji. Henderson closed with seven straight pars. Ji shot a 73. Ariya Jutanugarn (73) and Minjee Lee (74) tied for third at 11 under.

McCarron takes Mitsubishi Electric Classic: DULUTH, Ga. — Scott McCarron completed a wire-to-wire victory in the Mitsubishi Electric Classic for his third victory at TPC Sugarloaf. McCarron closed with a 1-under 72 for a two-stroke victory over Jerry Kelly, Joe Durant, Kirk Triplett and Kent Jones in the PGA Tour Champions event.

Griffin triumphs in playoff at Web.com event: PRATTVILLE, Ala. — Lanto Griffin made a 7-foot birdie putt on the 18th hole to force a playoff, and he won with a birdie on the fourth extra hole in the Robert Trent Jones Golf Trail Championship on the Web.com Tour.

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