| Date | Super Stock Cars | Notes |
| 5/24/1968 | Gene Schattschneider | |
| 5/31/1968 | Fogged Out | |
| 6/7/1968 | Gene Schattschneider | |
| 6/14/1968 | Danny Rueth, Ames | |
| 6/21/1968 | Del Stokke | |
| 6/28/1968 | Gene Schattschneider | |
| 7/5/1968 | Gene Schattschneider | Mid-Season Championship |
| 7/12/1968 | Rain | |
| 7/19/1968 | Orie Shipler | |
| 7/26/1968 | Gene Schattschneider | Midwest Super Stock Car Championship |
| 8/2/1968 | Gene Schattschneider | |
| 8/9/1968 | No results shown | |
| 8/13/1968* | Dick Simpson | Fair Race |
| 8/16/1968* | Butch Householder | Fair Race |
| 8/23/1968 | No results shown | |
| 8/30/1968 | Darreld Bunkofske | season championship |
| Track Champion | Gene Schattschneider | |
| Track Promoter | Dwight Cook | |
| * = Fair Race |
