Welcome to the (statistically) toughest week on the PGA Tour, the Valero Texas Open.

How tough is it, Titleist Brand Ambassador Brendan Steele?

 "It's so tough that a lot of guys are going to be walking away shaking their heads," said Steele, last year's winner at TPC San Antonio.

"I think it's a good test and it's a little different test than we see week-in, week-out."

TPC San Antonio, a par-72 layout guarded by narrow fairways, deep bunkers, undulating greens, tight lies and high winds, had the highest scoring average of any PGA Tour event on the 2011 schedule (73.665).

Steele won with an 8-under 280 total, trusting his Pro V1x golf ball to a final-round 1-under 71 that included a tournament-winning up-and-down on the 18th hole.

"I don't think there's anything about the course that's unfair even when the wind blows that hard," Steele said. "It demands really good shots and if you don't hit them, you're going to pay the price."

This week, 105 players are relying on Titleist Pro V1 and Pro V1x golf balls for their success at TPC San Antonio, more than seven times the nearest competitor with 14 and more than all competitors combined. Titleist is also first in iron sets (35); sand, lob and approach wedges (123); and putters (62).

 Take a look at Team Titleist's pictures from the practice rounds in the slideshow below.