Published: Oct 15, 2011 10:26 PM EDT
Updated: Oct 16, 2011 6:30 AM EDT

ST. SIMONS ISLAND, Georgia (AP) - Webb Simpson shot a 1-under 69 on Saturday and is tied for third heading into the final round of the McGladrey Classic.

Simpson and world No. 1 Luke Donald are vying for the PGA Tour money title and both have said they will play next week at Disney. Simpson trails Donald by $68,971, but could move into the top spot with a strong round Sunday.

Simpson also is looking for a tour-leading third win this year, which could make him the favorite for PGA Tour player of the year.

Michael Thompson had three early birdies and finished with a 67 to move into the lead at Sea Island, one shot better than Billy Horschel.

Trevor Immelman matched the course record of 62 and is tied with Simpson at 11 under.