Mark Wilson notched his second victory of the 2011 PGA Tour season on Monday by winning a playoff with Jason Dufner at the weather-plagued Phoenix Open in Arizona. Frost delays over the first two days at the TPC of Scottsdale backed up play and forced a Monday finish. Wilson, who won the Sony Open in Hawaii last month, completed 72 holes tied with Dufner at 18-under par and the two each parred the first extra hole before Wilson won it with a birdie on the second.