Thunder Run is a wooden roller coaster at the Kentucky Kingdom amusement park in Louisville, Kentucky. The ride originally operated from August 1990 through to October 2009, when then-operators Six Flags abandoned the park. After remaining standing but not operating since 2009, Thunder Run reopened in May 2014 when Kentucky Kingdom reopened under new operators.The ride was manufactured by Dinn Corporation and designed by Curtis D. Summers and John Fetterman. With 2850ft of track, Thunder Run stands tall and features a top speed of.