Here are the 2018 Masters Odds, according to Jeff Sherman and the Westgate Las Vegas Superbook. Jordan Spieth, 10-1 Justin Thomas, 10-1 Dustin Johnson, 12-1 Tiger Woods, 12-1 Rory McIlroy, 12-1 Justin Rose, 12-1 Bubba Watson, 16-1 Phil Mickelson, 16-1 Rickie Fowler, 16-1 Jason Day, 16-1 The 2018 Masters begins on Thursday, April 5 on ESPN.