Castroneves finished 1.6 seconds ahead of runner-up Vitor Meira to get his fourth win of the season. He has 11 wins in his IndyCar career.
The win by Castroneves, combined with his teammate's last place finish, means he is the new IRL points leader -- eight points ahead of Sam Hornish Jr.
'SNL': 'Anchorman 2' cast, One Direction sing 'Afternoon Delight' [VIDEO]
Ukrainian protestors topple Lenin statue [VIDEO]