Ryan Hunter-Reay's second consecutive short track victory was reason enough to celebrate. Closing to three points of IZOD IndyCar Series championship front-runner Will Power was a bonus.

Hunter-Reay, who prevailed at the Milwaukee Mile a week earlier following a 90-minute rain delay, won the Iowa Corn Indy 250 at Iowa Speedway under caution. The start was delayed 40 minutes because of a thunderstorm.

Hunter-Reay, driving the No. 28 Team DHL/Sun Drop Citrus Soda car, led Andretti Autosport teammate Marco Andretti by 1.2223 seconds on Lap 247 of 250 when the yellow flag flew the next lap for the No. 6 car driven by Katherine Legge making contact with the SAFER Barrier exiting Turn 2.

Andretti, the 2011 race winner, earned his first podium finish of the season. Tony Kanaan followed his runner-up finish to Hunter-Reay at Milwaukee with a third place and Scott Dixon was fourth. Simon Pagenaud, who started last in the 25-car field, climbed to fifth in his fourth oval race.

Also on June 23, Esteban Guerrieri held off Gustavo Yacaman by 0.4005 of a second to win the Sukup 100 at Iowa Speedway.

It was the third victory of the season for the driver of the No. 11 Pistas Argentinas/Sam Schmidt Motorsports with Curb Agajanian car. Guerrieri has finished in the top five in all but one race (seventh at Belle Isle), which has led him to the Firestone Indy Lights championship points lead.

Guerrieri, running second to teammate Tristan Vautier, inherited the lead on Lap 71 of 115 as Vautier was metered a drive-through penalty for blocking. He rallied to finish fourth (3.9 seconds back) in the No. 77 Mazda Road to Indy/SSM with Curb Agajanian car.

Victor Carbone, driving the No. 3 Mav TV/Nevoni/SSM with Curb Agajanian car, finished a season-high third.