Jay Haas will carry a three-shot lead into the final round of the Principal Charity Classic after shooting a 6-under 65 on Saturday.
Haas, who won the Champions Tour event at Glen Oaks Country Club in 2007 and 2008, will try to become the first golfer to win three times in Iowa. He is at 11 under following his bogey-free performance in the second round.
Larry Mize eagled the 18th hole to get within three of Haas at 8 under.
Tom Lehman is four strokes back, followed by Andrew Magee at 6 under. Fred Funk and Kenny Perry lead four players at 5-under 137.
First-round leader Mike Goodes shot 3-over par on the front nine and is 4 under for the tournament.