Harvey, who has qualified only 24th yet was fastest of the Rahal Letterman Lanigan-Hondas in a strangely poor event for the team so far, was on his 26th lap of the 1.5-mile track in final practice when his car understeered in the middle of Turn 2.
Harvey downchanged, the #45 Hy-Vee car started oversteering, and its right-rear wheel appeared barely to kiss the wall, but it was enough to unsettle the car and wrench it out of Harvey’s control. It looped around and across the track to make heavy contact with the inside wall and then slide along the back straight to Turn 3.
