Revealed: Three key speed secrets of Newgarden’s Indy 500 win

After three red flags, Newgarden decisively passed Marcus Ericsson in the one-lap shootout that decided Sunday’s showpiece. A robust defence exiting Turn 4 ensured he held off Chip Ganassi Racing’s defending winner to secure his first and team owner Roger Penske’s 19th Indy 500 victory.
Analysis: How Newgarden rose to be a thorn to Ericsson’s double Indy 500 bid 
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