| | Heat | Dash | B Feature | A Feature |
|---|
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|---|
| 3/22/2003 | Perris Auto Speedway - Perris, CA Midgets, 360 Sprints - Non-Winged | Results | | Steve Koster (Midgets) | - | - | - | 8th |
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| 4/5/2003 | Bakersfield Speedway - Bakersfield, CA Midgets: USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Midgets) | - | - | - | - | | Steve Koster (Economy Midgets) | 2nd | - | - | 10th |
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| 4/26/2003 | Irwindale Speedway - Irwindale, CA Midgets: USAC National Midgets with USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Economy Midgets) | - | - | - | - |
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| 5/10/2003 | Kings Speedway - Hanford, CA Midgets: USAC Western States Midgets 360 Sprints - Winged, Economy Midgets | Results | | Steve Koster (Economy Midgets) | - | - | - | - |
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| 6/7/2003 | Bakersfield Speedway - Bakersfield, CA Midgets: USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Economy Midgets) | - | - | - | - |
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| 8/30/2003 | Perris Auto Speedway - Perris, CA | Results | | Steve Koster (Midgets) | - | - | - | 14th |
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| 9/13/2003 | Bakersfield Speedway - Bakersfield, CA Midgets: USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Midgets) | - | - | - | - | | Steve Koster (Economy Midgets) | 3rd | - | - | 11th |
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| 10/4/2003 | Irwindale Speedway - Irwindale, CA Midgets: USAC Western States Midgets Economy Midgets, 360 Sprints - Non-Winged | Results | | Steve Koster (Midgets) | - | - | - | - | | Steve Koster (Economy Midgets) | - | - | - | 9th |
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| 11/27/2003 | Irwindale Speedway - Irwindale, CA Midgets: USAC National Midgets with USAC Western States Midgets Economy Midgets, 360 Sprints - Non-Winged | Results | | Steve Koster (Midgets) | - | - | - | - | | Steve Koster (Economy Midgets) | - | - | - | 10th |
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