Helio Castroneves passed Palaou several times in the waning laps of the INDY 500. But each time the younger driver was able to quickly re-pass. I wonder if Helio was deliberately, ever so slightly, lifting after each time he assumed the lead. The result was Palaou may have felt he easily had time in the final two laps to catch and re-pass Helio for the win. Just curious...did the old man fool the younger?
I think it's more that in the end Helio got the help of the draft of the backmarkers to be able to defend his position.