1987 Indianapolis 500 Al Unser, Sr. held off Roberto Guerrero by 4.496 seconds, to win his record-tying fourth Indianapolis 500 victory. By leading the final 18 laps, Unser, Sr. tied the all-time record for most laps led in Indy 500 competition, and, at 47 years of age, also became the oldest winner of the 500. Mario Andretti's dominance of the month, and subsequent failure to achieve victory, was largely unprecedented in modern times. He led the practice speed chart on 11 of the 17 days (he participated in only 13 days), won the pole position, won the pit stop contest, had the fastest
Indianapolis 500 Chip Ganassi became the first car owner to win the Daytona and Indianapolis 500s in the same year, with Jamie McMurray winning the Daytona 500 and Dario Franchitti winning the Indianapolis 500. In 2010, Bruton Smith (owner of Speedway Motorsports, Inc.), offered $20,000,000 to any driver, IndyCar or NASCAR, who can win both the Indianapolis 500 and the Coca-Cola 600 on the same day starting in 2011—a feat that has never been done before. For 2011, the Indianapolis Motor Speedway moved the start time of the Indy 500 back to 12:15 PM EDT (prior to 2005, the engines started at