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
2002 Indianapolis 500 2009 Indianapolis 500, and is currently with NBC Sports as one of the network's INDYCAR broadcasters. INDYCAR played off the controversy when Tracy won at the Speedway in 2016 at the Sportscar Vintage Racing Association Brickyard Vintage Racing Invitational Pro-Am, a race featuring amateur drivers paired with Indianapolis Motor Speedway racers, with the headline "Tracy finally gets to drink milk" upon his first career win at the Speedway. The race was carried live on the Indy Racing Radio Network. The network celebrated its 50th anniversary covering the Indianapolis 500. Mike King served as chief announcer. Johnny Rutherford served as "driver