Fifth at Indianapolis Armstrong finished in fifth place in Sunday's Indianapolis 500. Impact Armstrong spent the final lap of the Indianapolis 500 battling with teammate Felix Rosenqvist, but was forced to lift to avoid a potential crash. That was enough to let Rosenqvist clear him and go on to take the victory, while Armstrong was caught by the cars behind him and dropped to fifth. The IndyCar Series now heads to Detroit, where Armstrong has one podium and an average finish of 5.7 in three races at the track.