Knoxville Raceway is a semi-banked 1/2 mile dirt oval raceway located at the Marion County, Iowa fairgrounds in Knoxville, Iowa. Races are held on Saturday nights, and regular events include 360 cubic inch and 410 cubic inch sprint cars.
The first races were held at the Knoxville Raceway in 1954. The dirt on the track is Des Moines River black bottom gumbo. The Marion County Fairgrounds is governed by a 24 member fairboard and the current Race Director is Ralph Capitani.
The current one-lap track record is 14.407 seconds set by current & 3 times Australian champion Brooke Tatnell on May 7, 2006. During that night, 31 cars timed under the 14 second range and 26 cars beat the old track record set by Terry McCarl during the 2005 Knoxville Nationals.