Colombia's Juan Pablo Montoya recovered from the back of the grid to win his second Indianapolis 500 on Sunday.
Montoya fell back to 30th place after his car's rear wing was damaged during a caution period, but recovered and with three laps left overtook Penske Racing team-mate Will Power to win.
The 39-year-old was last victorious in the 200-lap 2.5-mile race in 2000 before spending six years in Formula 1 and eight years in Nascar.
American Charlie Kimball came third.
Championship leader Montoya, who finished fifth in the prestigious race on his return to IndyCar in 2014, said: "This is what IndyCar is all about, awesome racing all the way down to the wire. I don't even know what to say. This is too good."
The Colombian, who won seven races during his time in F1 with Williams and McLaren, added: "I had a good feeling all day. The car under me was awesome."