ADELAIDE, Australia (AP) _ Former Australian Masters champion Peter Lonard is on the verge of his first victory in three years, holding a four-stroke lead going into Sunday's final round of the Ford Open.

Lonard shot a 5-under-par round of 67 at Kooyonga on Saturday to move to 15-under-par 201.

He leads Australians Gary Simpson and Andrew Bonhomme, who were tied for second place at 11-under 205. Former Australian Open winner Wayne Riley, at 10-under, appears to be the only other potential player to threaten for the lead.

Lonard said he was pleased with Saturday's round because he had moved into contention regularly in recent weeks.

``Every week for the last five weeks I've been thinking 'this is the one,' but I have had a few bad shots and paid the penalty,'' Lonard said.

``This week, I felt far more comfortable driving the ball and with the irons.''

Simpson equaled the course record with an eight-under 64 and will enjoy the support of his hometown galleries Sunday.

Neither Bonhomme nor Simpson have won on the Australian tour, but Bonhomme said he hoped to change that Sunday.

``I'm playing as well as I have for a long time, it's good to be among the action,'' he said. ``I've won overseas and won on the Asian PGA tour but every guy wants to win on their home tour.''

Defending champion Craig Parry is eight shots from the lead after a 71 Saturday. Aaron Baddeley, who has won the last two Australian Opens, dropped from contention with a 75 to be 12 strokes back.