| | Heat | Dash | B Feature | A Feature |
|---|
|
|---|
| 5/2/1981 | Knoxville Raceway - Knoxville, IA 410 Sprints - Non-Winged, 360 Sprints - Non-Winged | Results | | Mackie Heimbaugh (410 Sprints - Non-Winged) | - | - | - | 17th |
|
| 6/13/1981 | Knoxville Raceway - Knoxville, IA | Results | | Mackie Heimbaugh (410 Sprints - Non-Winged) | - | - | - | 15th |
|
| 6/20/1981 | Knoxville Raceway - Knoxville, IA | Results | | Mackie Heimbaugh (410 Sprints - Non-Winged) | - | - | - | 20th |
|
| 6/27/1981 | Knoxville Raceway - Knoxville, IA | Results | | Mackie Heimbaugh (410 Sprints - Non-Winged) | - | - | - | 15th |
|
| 7/4/1981 | Knoxville Raceway - Knoxville, IA | Results | | Mackie Heimbaugh (410 Sprints - Non-Winged) | - | - | - | 14th |
|
| 8/1/1981 | Knoxville Raceway - Knoxville, IA | Results | | Mackie Heimbaugh (410 Sprints - Non-Winged) | - | - | - | 13th |
|