In one of the most dramatic finishes in Indy history, 19-year old rookie Marco Andretti took the lead with three laps to go, after passing his father Michael Andretti on the outside of turn one. Marco Andretti battled Sam Hornish, Jr. over the final two laps, holding off the challenge until the final straightaway. On the final lap, Hornish passed Marco Andretti about 450 feet from the finish line to take the win. It was the first time a driver successfully made a pass for the lead on the final lap for victory in the 90-year history of the event.