Byron and Allmendinger Dominate COTA Xfinity Series

AJ Allmendinger wins the Xfinity Series race at Circuit of the Americas for the second year in a row, while Zane Smith wins the Craftsman Truck Series race for the second year in a row as well. Former F1 champions Kimi Raikkonen and Jenson Button make rare appearances in the Cup Series at COTA. Pit strategy is key at road courses, with crew chiefs developing multiple strategies for the COTA race due to new rules changes and no cautions at stage breaks.