2016 PGA Championship futures betting odds

After his first major win in the U.S. Open and a ninth place finish in the Open Championship, Dustin Johnson holds the slight edge as the betting favorite going into the PGA Championship. Gregory Shamus/Getty Images

With three in the books, attention has turned to the fourth and final major of the golf season -- the PGA Championship. Here are the current odds released by the Westgate Las Vegas SuperBook, as of July 25.