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It's the first stop of the 2013 PGA Tour season on the continental U.S. and a quick look at the Humana Challenge leaderboard (which is currently dominated by red numbers) shows that players already have their games in shape.

And as the official counts come in,Titleist is the overwhelming top choice in golf balls at the Humana Challenge with 106 players in the field of 156 relying upon a Pro V1 or Pro V1x, more than six times the nearest competitor with 16. Titleist was also the favorite in the iron sets (42), sand, lob and approach wedge (160) and putter (57) categories.

Highlighting the golf ball count, a total of 62 players are relying upon a 2013 Pro V1 (11) or Pro V1x (51) prototype as the tour seeding and performance validation process continues.

Check out the slideshow above to go inside the ropes and see what the players including Titleist Brand Ambassadors Geoff Ogilvy, Webb Simpson, Bud Cauley, Kevin Na,  and Patrick Cantlay, among others, were up to early in the week.

Good luck to the field!