Samantha Horton

The more than three-hour race was riddled with cautions and restarts.

A final restart left drivers one lap to secure the lead.

Going into the final straightaway, Felix Rosenquist came from behind an inch ahead of David Malukas by just over two hundredths of a second.

The photo finish was so close, some in the crowd were unsure who won.

Rosenquist says it was how he always pictured his first Indy 500 win.

It's a second win for team owners Meyers Schenck Racing.

For NPR News, I'm Samantha Horton in Indianapolis.