Jason Day is the man to beat this week at the 145th Open - at least, according to oddsmakers.
The world No. 1 was listed as a 7/1 favorite to lift the claret jug when the Westgate Las Vegas Superbook first published odds following the U.S. Open. While his chances have drifted to 8/1 as of Tuesday, he remains the player with the shortest odds.
Dustin Johnson opened at 12/1 last month, but he is now hot on Day's heels at 9/1 following another win at the WGC-Bridgestone Invitational. Jordan Spieth and Rory McIlroy, who both opened at 8/1, are now both listed at 10/1.
Here's a look at some of the betting favorites for Royal Troon, all odds courtesy Westgate:
8/1: Jason Day
9/1: Dustin Johnson
10/1: Jordan Spieth, Rory McIlroy
20/1: Adam Scott, Sergio Garcia
25/1: Rickie Fowler, Branden Grace, Henrik Stenson
30/1: Phil Mickelson, Louis Oosthuizen, Justin Rose
40/1: Martin Kaymer, Lee Westwood
50/1: Danny Willett, Zach Johnson, Shane Lowry, Jim Furyk, Matt Kuchar
60/1: Bubba Watson, Hideki Matsuyama, Charl Schwartzel, Russell Knox, Andy Sullivan, Patrick Reed, Paul Casey
80/1: Graeme McDowell, Matthew Fitzpatrick, Marc Leishman, Brandt Snedeker, Chris Wood, Rafael Cabrera-Bello, Scott Piercy
100/1: Ernie Els, Francesco Molinari, Danny Lee
The Westgate also released a few props regarding scoring this week at Royal Troon, where weather can always be a factor:
Winning score: Over/under 273.5 (10.5 under par)
Lowest single round: Over/under 65 (par 71)
Will Jason Day, Dustin Johnson, Jordan Spieth or Rory McIlroy win: Yes +200 (wager $100 to win $200), No -240 (wager $240 to win $100)