| | Heat | Dash | B Feature | A Feature |
|---|
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|---|
| 4/19/1998 | Phoenix International Raceway - Phoenix, AZ 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Brad Armstrong (410 Sprints - Non-Winged) | - | - | - | 3rd |
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| 4/25/1998 | Manzanita Speedway - Phoenix, AZ 360 Sprints - Winged: Arizona Sprint Car Association 360 Sprints - Non-Winged | Results | | Brad Armstrong (360 Sprints - Non-Winged) | - | - | - | 8th |
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| 5/2/1998 | Manzanita Speedway - Phoenix, AZ 360 Sprints - Winged: Arizona Sprint Car Association Midgets, 360 Sprints - Non-Winged | Results | | Brad Armstrong (360 Sprints - Non-Winged) | - | - | - | 16th |
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| 5/29/1998 | Terre Haute Action Track - Terre Haute, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Brad Armstrong (410 Sprints - Non-Winged) | - | - | - | - |
|
| 6/19/1998 | Attica Raceway Park - Attica, OH 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Brad Armstrong (410 Sprints - Non-Winged) | - | - | 19th | - |
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| 7/1/1998 | Lucas Oil Raceway at Indianapolis - Clermont, IN 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Brad Armstrong (410 Sprints - Non-Winged) | - | - | - | 15th |
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| 7/29/1998 | Lucas Oil Raceway at Indianapolis - Clermont, IN Silver Crown: USAC Silver Crown | Results | | Brad Armstrong (Silver Crown) | - | - | - | 19th |
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| 9/19/1998 | Lucas Oil Raceway at Indianapolis - Clermont, IN Midgets: USAC National Midgets 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Brad Armstrong (410 Sprints - Non-Winged) | - | - | - | 15th |
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| 9/25/1998 | Eldora Speedway - Rossburg, OH 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Brad Armstrong (410 Sprints - Non-Winged) | - | - | - | - |
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