| | Heat | Dash | B Feature | A Feature |
|---|
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|---|
| 3/27/2004 | Irwindale Speedway - Irwindale, CA Midgets: USAC National Midgets with USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Midgets) | - | - | - | - | | Steve Koster (Economy Midgets) | - | - | - | 13th |
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| 5/8/2004 | Kings Speedway - Hanford, CA Midgets: USAC Western States Midgets 360 Sprints - Winged | Results | | Steve Koster (Midgets) | - | - | - | 11th |
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| 5/15/2004 | Bakersfield Speedway - Bakersfield, CA Midgets: USAC Western States Midgets | Results | | Steve Koster (Midgets) | - | - | - | 9th |
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| 5/22/2004 | Perris Auto Speedway - Perris, CA Midgets: USAC Western States Midgets | Results | | Steve Koster (Midgets) | - | - | - | 17th |
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| 6/5/2004 | Bakersfield Speedway - Bakersfield, CA Midgets: USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Midgets) | - | - | - | - | | Steve Koster (Economy Midgets) | 5th | - | - | 13th |
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| 7/10/2004 | Bakersfield Speedway - Bakersfield, CA Midgets: USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Midgets) | 2nd | - | - | - | | Steve Koster (Economy Midgets) | 7th | - | - | 9th |
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| 7/24/2004 | Ventura Raceway - Ventura, CA Midgets: USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Economy Midgets) | 6th | - | - | 8th |
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| 8/28/2004 | Perris Auto Speedway - Perris, CA 410 Sprints - Non-Winged: USAC CRA Sprint Car Series Midgets | Results | | Steve Koster (Midgets) | - | - | - | 19th |
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| 9/11/2004 | Perris Auto Speedway - Perris, CA 410 Sprints - Non-Winged: USAC CRA Sprint Car Series Midgets | Results | | Steve Koster (Midgets) | - | - | - | 14th |
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| 9/25/2004 | Ventura Raceway - Ventura, CA Midgets: USAC Western States Midgets Economy Midgets | Results | | Steve Koster (Economy Midgets) | 4th | - | - | 9th |
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