Donald is trying to become the first player to win money titles on the PGA TOUR and European Tour in the same year. When the PGA TOUR Playoffs for the FedExCup ended, Donald was No. 1 on the list by $68,971 over Simpson.
Simpson's agent, Thomas Parker, said Simpson planned to play at Sea Island next week and that he would decide later whether to play the season-ending Children's Miracle Network Hospitals Classic.
Donald has a large lead in the money list in Europe. He could add Disney if he wanted, although his wife is expecting their second child.