Jason Day was the betting favorite after Round 1 of the PGA Championship, and a second-round 65 did nothing to scare off the oddsmakers in Vegas.
The Westgate Las Vegas Superbook lists Day as the 9/4 favorite to go back to back at the PGA, with Henrik Stenson, fresh off a victory at The Open not far behind at 9/2. Leaders Jimmy Walker (13/2) and Robert Streb (10/1) round out the top four, while fan favorites Jordan Spieth and Rickie Fowler offer a little bit better odds at 20/1 and 25/1, respectively.