The wise men in the desert rolled out odds for the 2016 U.S. Open, and Spieth, the defending champion, is listed as the favorite at 7-1.
Following the two-time major winner are Rory McIlroy and Jason Day, both marked at 8-1. Masters winner Danny Willett, who was listed as high as 70-1 to win the green jacket, saw his Vegas odds improve for the U.S. Open at 30-1.
Other notables include Dustin Johnson (18-1), Justin Rose and Rickie Fowler (both 20-1), Adam Scott (22-1) and Bubba Watson (28-1).
The 2016 U.S. Open begins on June 16 at Oakmont Country Club.