| | Heat | Dash | B Feature | A Feature |
|---|
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|---|
| 4/22/1978 | Reading Fairgrounds - Reading, PA 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | 15th |
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| 4/30/1978 | Sandusky Speedway - Sandusky, OH 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | 1st |
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| 5/26/1978 | Indiana State Fairgrounds - Indianapolis, IN 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | - |
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| 6/17/1978 | Eldora Speedway - Rossburg, OH 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | 8th |
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| 6/23/1978 | Flemington Fair Speedway - Flemington, NJ 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | 10th |
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| 6/30/1978 | Wayne County Speedway - Orrville, OH 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | 14th |
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| 7/1/1978 | New York State Fairgrounds - Syracuse, NY Silver Crown: USAC Silver Crown | Results | | Greg Leffler (Silver Crown) | - | - | - | 20th |
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| 7/4/1978 | Reading Fairgrounds - Reading, PA Midgets: USAC National Midgets 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | 3rd |
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| 8/6/1978 | Sandusky Speedway - Sandusky, OH 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | 8th |
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| 8/19/1978 | Illinois State Fairgrounds - Springfield, IL Silver Crown: USAC Silver Crown | Results | | Greg Leffler (Silver Crown) | - | - | - | 14th |
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| 9/17/1978 | Eldora Speedway - Rossburg, OH 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | | Greg Leffler (305 Sprints - Non-Winged) | - | - | - | 11th |
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| 9/29/1978 | New York State Fairgrounds - Syracuse, NY 410 Sprints - Winged: World of Outlaws 410 Sprints - Non-Winged | Results | | Greg Leffler (410 Sprints - Non-Winged) | - | - | - | - |
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| 9/30/1978 | New York State Fairgrounds - Syracuse, NY 410 Sprints - Winged: World of Outlaws 410 Sprints - Non-Winged | Results | | Greg Leffler (410 Sprints - Non-Winged) | - | - | - | 6th |
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