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Phil Mickelson enjoyed a record-setting victory in his first week using a Callaway RAZR Fit Xtreme driver.
Back in the good ol' days of NASCAR when the race cars actually looked like street cars, there was a saying: ''Win on Sunday, sell on Monday.'' That meant, of course, that fans would want to buy the cars that prevailed on the track.
There's no similar adage in golf, but the same principle applies. That's why you so often see golf equipment ads touting the success of products on tour.
Seldom, however, is the correlation between tour success and sales as immediate and direct as it was over the weekend.