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| 4/28/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 1st | - | - | 1st |
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| 5/5/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday plus Gateway Vintage Series DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 1st | - | - | 1st |
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| 5/12/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 1st | - | - | 1st |
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| 5/26/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Sprint Cars, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 4th | - | - | 5th |
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| 6/16/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 1st | - | - | 1st |
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| 6/23/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 1st | - | - | 3rd |
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| 7/14/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Rain Out |
| 7/21/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday plus Gateway Vintage Series DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 3rd | - | - | 4th |
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| 7/28/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Fan Appreciation and Kids Night DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 5th | - | - | 6th |
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| 8/11/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 2nd | - | - | 5th |
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| 8/18/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 3rd | - | - | 9th |
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| 9/15/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Super Federated Saturday DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 2nd | - | - | 5th |
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| 9/22/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Pepsi Nationals DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, DIRTcar Sport Compact, B Modifieds | Results | | Lee Stuppy (DIRTcar Sportsmans) | 2nd | - | - | 1st |
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