Bryce Molder held his nerve to see off Briny Baird at the Frys.com Open in California, in the longest play-off of the year on the PGA Tour.
The American beat his compatriot on the sixth extra hole at CordeValle with a birdie to claim the first victory of his career.
Molder had three chances to win, missing from 20 feet, 15 feet and 12 feet before his winning effort on the 18th hole.
He said: "It's a little surreal right now. That's a lot of golf
The loss was a bitter one for Baird, who is still searching for his first professional win after 12 years and 348 starts on the PGA tour.
"I finished second before four times, and only one of those four times did I really honestly think I had a chance to win," the 39-year-old said afterwards. "Today I felt like I was out there to win the tournament. For me, that's a big deal."
' return to competitive action after more than two months out with injury was marred by a spectator who decided to throw a hot dog at the world number one.
The 35-year-old was lining up a putt at the seventh green when a man burst from the crowd shouting "Tiger, Tiger" and heaved the sausage in his direction.
Fortunately, it did not come close to reaching its target and security quickly whisked the man away after he lay down on the grass and surrendered.
"I guess he wanted to be in the news," said Woods, who went on to miss his putt. "And I'm sure he will be."
Dan Diggins, the tournament's director of security, remarked: "He's just an idiot. It wasn't a chilli dog - that could have been bad."
Over on the European Tour, England's Lee Slattery survived a scare to claim his maiden title at the Bankia Madrid Masters.
The 33-year-old from Southport held a three-stroke lead over Italian Lorenzo Gagli at the 18th tee, but dumped his third shot into the water.
He managed to recover for a double bogey to finish on 15 under par, one better than his rival.
"I had a two-footer on the last to win and I have never shaken so much in my life," he told Sky Sports. "I was so relaxed on the back nine, making birdies, but as soon as I made a mistake, like I did on the last, it became quite tough. It was nerve-wracking."
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