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Conor Daly leads the field at the start of Friday's Iowa IndyCar 250 at Iowa Speedway. (Chris Owens/IndyCar photo)

Ryan Hunter-Reay (28) leads a pack of cars during Friday's Iowa IndyCar 250 at Iowa Speedway. (Joe Skibinski/IndyCar photo)

Simon Pagenaud (22) leads a pack of cars during Friday's Iowa IndyCar 250 at Iowa Speedway. (Joe Skibinski/IndyCar photo)

Will Power (12) crashes after losing his left-front tire during Friday's Iowa IndyCar 250 at Iowa Speedway. (Joe Skibinski/IndyCar photo)

Oliver Askew (7) leads a wild pack of action during Friday's Iowa IndyCar 250 at Iowa Speedway. (Joe Skibinski/IndyCar photo)

Simon Pagenaud takes the checkered flag to win Friday's Iowa IndyCar 250 at Iowa Speedway. (Chris Jones/IndyCar photo)