#54-Darrell Wallace, Jr. was fastest during the opening practice at Iowa Speedway with a speed of 137.261mph. #88-Matt Crafton was second, followed by #17-Timothy Peters, #51-Erik Jones, #00-Cole Custer, #21-Joey Coulter, #20-Justin Lofton, #97-Jeff Choquette, #9-Chase Pistone, and #77-German Quiroga. 36 drivers practiced during the session. See complete results on the Iowa practice 1 speeds page (pdf).
