American Ryan Palmer tapped in for birdie on the final hole to shoot a four- under 66 Sunday and capture the 5.5 million dollar PGA Tour Sony Open. The 33-year-old Palmer held off Australian Robert Allenby to win by one shot at the Waialae Country Club, finishing with a 15-under 265. Palmer, who tied with Allenby over the final three holes Sunday, came up short of the green on the par-five final hole. Allenby chipped onto the green to just inside 10 feet of the cup. Palmer then bounced his next shot in front of the cup and hit the pin leaving the ball inches away. Allenby missed his birdie putt, and Palmer tapped in for his third career victory. This victory puts Palmer in The Masters tournament for the first time in five years. Allenby fired three-under 67 Sunday in his bid to win for the third consecutive time on three different tours. 