Tiger Woods reached number one ranking in the world.
Tiger Woods . He first reached the number one position in the world rankings in June 1997 , after less than a year as a professional . After winning the Arnold Palmer Invitational on March 25 , 2013 , he ascended to the No. 1 ranking once again , holding the top spot until May 2014 . He has been World Number One for the most consecutive weeks and for the greatest total number of weeks of any golfer .