A mostly uneventful S1 ended with chart-topper Tristan Vautier sliding off in Turn 2, across the gravel trap and into a rather muddy fence area. Vautier ends the session atop the speed charts at 1:09.0120 after 15 laps of running.
Honda made a strong showing during the first session with Vautier finishing P1, Scott Dixon in P2, Charlie Kimball in P3 and Will Power as the fastest Chevy in p4. Dario Franchitti rounds out the Top Five with a 1:09.3202.
The top 10 times were evenly split between Chevrolet and Honda. Rounding out the Top Ten were Simona de Silvestro, Simon Pagenaud, Ryan Hunter-Reay, Helio Castroneves and Oriol Servia.
Practice 2 begins at 3:45 local time.