This week, Bates is in his comfort zone at the Siouxland Open; an event he captured in 1994 en route to earning his PGA Tour card.
Now, he wants a repeat performance.
Bates, whose stepfather is the Senior PGA Tours Doug Tewell, shot a 2-under-par 70 to finish the third round at 13-under. Hes one shot ahead of Joe Daley, who shot 69.
Overnight leader Tjaart van der Waalt shot 4-over-par 76 to fall five off the pace at 8-under.
Bates made his way to 14-under through 12 holes Saturday, but finished bogey-birdie-bogey-birdie-bogey.
Full-field scores from the Buy.Com Siouxland Open