John Huh parred the eighth hole of a playoff to beat Robert Allenby Sunday and win the Mayakoba Golf Classic in Playa del Carmen, Mexico.
Making his fifth PGA Tour start, Huh parred all eight holes in the playoff that matched the second-longest run of extra holes in PGA Tour history.
Huh, 21, closed with an 8-under 65 to match Allenby at 13-under 271 on the seaside El Camaleon course. Allenby, 40, of Australia, had a two-stroke lead with a hole to play in regulation, but he closed with a double bogey.
The playoff fell three holes short of the PGA Tour record of 11 set in the 1949 Motor City Open when Cary Middlecoff and Lloyd Mangrum were declared co-winners. The playoff was the fifth to go eight holes and first since the 1983 Phoenix Open.
The playoff alternated between the par-4 18th and par-3 10th.
Matt Every and Colt Knost shot 66 to tie for third, two strokes back.
Chris Stroud was a stroke behind entering the final hole, but also made a double bogey for a 71 to drop into a tie for fifth at 10 under with third-round leader Daniel Summerhays, Dicky Pride and Alejandro Canizares. Summerhays closed with a 73, and Pride and Canizares each shot 66.
Huh eagled the par-5 fifth and had six birdies in his bogey-free final round. He finished in the top 12 in two of his first four PGA Tour starts, tying for sixth at Torrey Pines and tying for 12th the following week in the Phoenix Open.
Allenby was trying to win for the first time on the PGA Tour since the 2001 Pennsylvania Classic, his fourth victory in a two-year span. He also won the Nedbank Challenge and Australian PGA in consecutive weeks late in 2009.
• HSBC Women's Champions: American Angela Stanford won on the third playoff hole in Singapore for her fifth career victory on the LPGA Tour. Stanford parred the third playoff hole, beating South Korea's Jenny Shin and China's Shanshan Feng and Na Yeon Choi of South Korea. Stanford tied Shin, Feng and Choi on the 18th to set up the playoff. Feng was eliminated at the first playoff hole, Choi at the second. Stanford trailed Shin by a shot after the 17th when play was suspended for about 90 minutes because of lightning. When play resumed, Shin hit her tee shot out of bounds, leading to a double bogey. Stanford bogeyed No. 18 to fall into a four-way tie at 10-under 278. Top-ranked Yani Tseng finished fifth. She began the third round at 1 under. But a 5-under 67 Saturday and a 4-under 32 on the first nine holes Sunday put her in a brief tie for the lead with Shin. A double bogey on 10 and another bogey on 14 pushed her back down the leader board.