https://www.google.com/maps/dir/38.0...!3e0!5i1?hl=en

If you're coming from somewhere south of Louisville on I-65 you can avoid the mess at the I-65/I-64 intersection and the new bridge construction by taking this route. Mostly 2 lane road after you get on US150, but a pleasant drive.

You may have to copy and paste the link for the complete directions.

Enjoy the race.