At the 1990 Chattanooga Classic, he finished at 20-under-par 260 to defeat Richard Zokol by two strokes.
He played on the Nationwide Tour from 2003 to 2012, where he won the 2010 Chattanooga Classic.
He achieved his first top-5 finish since May 2008 with a T5 effort at the 2010 Chattanooga Classic in October.
His best finish was a win at the 2005 Chattanooga Classic.
From 2003 to 2010 the event was called the Chattanooga Classic.
Estes, the 1988 College Player of the Year, had his previous best finish this year, a fifth at the Chattanooga Classic.
He also played in 10 Nationwide Tour events that year and finished second at the Chattanooga Classic.
He recorded two runner-up finishes on the Nationwide Tour, including a loss in a playoff at the Chattanooga Classic.
On the Nationwide Tour (1997-98, 2007, 2009-12), he won the 2007 Chattanooga Classic.
He picked up his second professional victory the following week at the Chattanooga Classic on the Nationwide Tour.