Henrik Stenson of Sweden made a 20-foot eagle and a tap-in birdie over the last three holes at Bay Hill to seize control Saturday in the Arnold Palmer Invitational.
Stenson had his second straight 6-under 66 for a two-shot lead over Morgan Hoffmann, who had a 71.
Six players were separated by three shots going into the final round, including defending champion Matt Every.
Rory McIlroy looked as if he would be among them. The world's No. 1 player pulled within one shot of the lead on the back nine until he made three straight bogeys.
McIlroy missed a 3-foot par putt on the 15th and took bogey on the par-5 16th. He had to settle for a 71 and was six back.
Stenson was at 16-under 200.