For much of the session, the top five Prototypes were covered by just 0.11sec, with Renger van der Zande in the #01 Chip Ganassi Racing Cadillac setting a 70.264sec, leading the stablemate #02 car’s endurance extra Ryan Hunter-Reay by 0.061sec. Loic Duval in the JDC Miller Motorsports entry made it a Caddy 1-2-3, mere hundredths behind, the team having fixed its faulty brake-bias lever which had caused the car to have an off in FP1.
At this point, Helio Castroneves of Meyer Shank Racing was fourth fastest in the quickest of the Acura ARX-05s ahead of Mike Conway in the Action Express Racing Cadillac.
