 It was renamed American Thunder for the 2011 season.To help promote the opening of the then-"Evel Knievel Roller Coaster", Knievel's son, Robbie Knievel, jumped a Honda CR-500 motorcycle over 25 Dodge Chargers on July 3, 2008.As a result of the St. Louis Cardinals losing to the Chicago Cubs in the 2015 National League Division Series, Six Flags St. Louis lost a friendly wager with Six Flags Great America, resulting in the temporary name change of the roller coaster to Cubs Thunder.