Tony Kanaan and Helio Castroneves led the way during Saturday morning's practice period for Sunday's Iowa Corn 300. Kanaan, the 2010 winner whose led 523 laps at Iowa Speedway in his career, turned a lap of 17.219 seconds (186.902mph) in the NTT Dallara-Chevrolet during a 90-minute session prior to Saturday afternoon's qualifying. Castroneves, winless since 2014, was close behind his Brazilian buddy at 17.241 (186.664mph) in the Team Penske Chevy. Related Stories Related Stories IndyCar INDYCAR: Series to use Phoenix aero at Iowa INDYCAR: Decision time nearing over aero kits INDYCAR: Enerson aiming for late-season debut INDYCAR: Hunter-Reay hunts Iowa breakthrough VIDEO: Carl Haas career...
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