This comes from the sporting section of The Las Vegas Review/Journal. I haven't seen any reports from the various sports books.
Justin Thomas 10-1
Jordan Spieth 10-1
Dustin Johnson 12-1
Rory McIlroy 12-1
Tiger Woods 12-1
Justin Rose 12-1
Jason Day 16-1
Rickie Fowler 16-1
Phil Mickelson 16-1
Bubba Watson 16-1
This also includes a bunch of "Prop Bets" for those who love that sort of stuff. Check it out @ Here are the Masters odds and prop bets
Justin Thomas 10-1
Jordan Spieth 10-1
Dustin Johnson 12-1
Rory McIlroy 12-1
Tiger Woods 12-1
Justin Rose 12-1
Jason Day 16-1
Rickie Fowler 16-1
Phil Mickelson 16-1
Bubba Watson 16-1
This also includes a bunch of "Prop Bets" for those who love that sort of stuff. Check it out @ Here are the Masters odds and prop bets