Source: Mike Tubergen
My grandfather told me that they used to race cars on the horse trace at the fairgrounds. I think he was talking about when fairgrounds were on 16th St. where Pilgrim Cemetery is now (on south side). I have pictures of him racing motorcycles at a fairground track, but not sure which one. There were USAC type cars, and a thrill show, also. (like Joey Chitwood style).