Josef Newgarden won a final lap duel with Pato O’Ward to become the first back-to-back winner of the Indianapolis 500 in 22-years on Sunday, giving team owner Roger Penske a 20th win at the Brickyard.

Newgarden’s victory capped an eventful afternoon that saw the start delayed four hours due to severe storms and interrupted by multiple cautions.

Still, officials managed to get in all 200 laps around the 2.5-mile oval but only just, with the race finishing in the Indiana sunset just before the 8:15 p.m. ET curfew.