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| 4/20/2018 | Tri City Speedway - Granite City, IL Full Throttle Friday $300 SS, $700 CLM DIRTcar Late Models, DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Pro Late Model | Results | | Dewayne Kiefer (DIRTcar Late Models) | 2nd | 6th | - | 7th |
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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 | | Dewayne Kiefer (DIRTcar Late Models) | 4th | - | - | 1st |
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| 5/5/2018 | Peoria Speedway - Peoria, IL DIRTcar Late Models, DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Dirt Late Models, Hornets | Results | | Dewayne Kiefer (DIRTcar Late Models) | DNS | - | - | DNS |
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| 5/27/2018 | Belle-Clair Speedway - Belleville, IL Carl Springer 50 DIRTcar Late Models, DIRTcar Factory Stock, DIRTcar Sport Compact, Winged A-Class, B Modifieds | Results | | Dewayne Kiefer (DIRTcar Late Models) | 4th | - | - | 6th |
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| 6/2/2018 | Highland Speedway - Highland, IL BIG 10 NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, B Modifieds, Street Stocks | Results | | Dewayne Kiefer (DIRTcar Late Models) | 3rd | - | - | 12th |
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| 6/8/2018 | Tri City Speedway - Granite City, IL Full Throttle Friday Crate LM $700 to win (Make Up Feature for StStock/Sportsman from 5/25) DIRTcar Late Models, DIRTcar UMP Modifieds, Winged Outlaw, B Modifieds, Street Stocks, Pro Late Model | Results | | Dewayne Kiefer (DIRTcar Late Models) | DNS | - | - | DNS |
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| 7/6/2018 | Tri City Speedway - Granite City, IL Full Throttle Friday DIRTcar Late Models, DIRTcar UMP Modifieds, Winged Outlaw, B Modifieds, Street Stocks | Results | | Dewayne Kiefer (DIRTcar Late Models) | 1st | - | - | 9th |
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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 |
| 7/20/2018 | Tri City Speedway - Granite City, IL Full Throttle Friday Crate LM $1000 (Make Up Feature for CLM from 5/25) DIRTcar Late Models, DIRTcar UMP Modifieds, Winged Outlaw, B Modifieds, Pro Late Model | Results | | Dewayne Kiefer (DIRTcar Late Models) | 4th | - | - | 13th |
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| 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 | | Dewayne Kiefer (DIRTcar Late Models) | 1st | - | - | 4th |
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| 7/27/2018 | Tri City Speedway - Granite City, IL Full Throttle Friday DIRTcar Late Models, DIRTcar UMP Modifieds, Winged Outlaw, B Modifieds, Street Stocks | Results | | Dewayne Kiefer (DIRTcar Late Models) | 4th | - | - | 8th |
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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 | | Dewayne Kiefer (DIRTcar Late Models) | 2nd | - | - | 3rd |
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| 8/4/2018 | Crowleys Ridge Raceway - Paragould, AR Factory Stocks, Stock Cars, A Modifieds, Street Stocks, Dirt Late Models, Pony Stock | Results | | Dewayne Kiefer (Dirt Late Models) | 1st | - | - | 1st |
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| 8/11/2018 | Peoria Speedway - Peoria, IL DIRTcar Late Models, DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Dirt Late Models, Hornets | Results | | Dewayne Kiefer (DIRTcar Late Models) | 2nd | - | - | 1st |
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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 | | Dewayne Kiefer (DIRTcar Late Models) | 1st | - | - | DNS |
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| 9/14/2018 | Tri City Speedway - Granite City, IL Full Throttle Friday Season Championship CLM $700/Bmods $500 DIRTcar Late Models, DIRTcar UMP Modifieds, Winged Outlaw, B Modifieds, Street Stocks, Pro Late Model | Results | | Dewayne Kiefer (DIRTcar Late Models) | 3rd | - | - | 2nd |
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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 | | Dewayne Kiefer (DIRTcar Late Models) | 7th | - | - | DNS |
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| 11/30/2018 | The Dome at America's Center - St. Louis, MO Midgets, Dirt Super Late Models, A Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds | Results | | Dewayne Kiefer (Dirt Super Late Models) | 7th | - | - | - |
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| 12/1/2018 | The Dome at America's Center - St. Louis, MO Midgets, Dirt Super Late Models, A Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds | Results | | Dewayne Kiefer (Dirt Super Late Models) | - | - | DNS | - |
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