Roger Chapman shot a 7-under 64 on Saturday to take a five-stroke lead into the final round of the Senior PGA Championship.
Chapman finished the day at 14-under par. John Cook began the round tied with Chapman for the lead, but couldn't keep pace with the Englishman and settled for a 69 to drop into second place at Harbor Shores.
Chapman's 54-hole score of 199 tied the tournament record set by Sam Snead in 1973, although Snead was 17 under when he set the mark.
Steve Pate had a 67 to join 66-year-old Hale Irwin at 7 under. Irwin made a triple bogey on the par-3 fourth, but played well on the back nine and shot 69.