He graduated in 1978, turned professional that year, and joined the PGA Tour in 1982.

His second win occurred a year later at the Hardee's Golf Classic and his third came in 1990 at the Buick Southern Open.

During this phase of his career, Knox had more than two dozen top-10 finishes and $1.6 million in earnings.

He once held the PGA Tour record for fewest putts in a tournament (93) set at the 1989 MCI Classic.

In 1996, Knox used his understanding of the short game to start TourGreens, an Atlanta-based business that designs and installs tour-quality artificial putting greens.