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| 4/21/2018 | Peoria Speedway - Peoria, IL DIRTcar Late Models, DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Dirt Late Models, Hornets | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 2nd | - | - | 5th |
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| 4/22/2018 | Quincy Raceways - Quincy, IL 305 Sprints - Winged, Midgets, DIRTcar UMP Modifieds, B Modifieds, Sport Compact | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | - | - | - | 2nd |
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| 4/29/2018 | Quincy Raceways - Quincy, IL Bringer Insurance DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | - | - | - | 2nd |
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| 5/6/2018 | Quincy Raceways - Quincy, IL 305 Sprints - Winged, DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | - | - | - | DNS |
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| 5/13/2018 | Quincy Raceways - Quincy, IL Spring Street Automotive DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | - | - | - | 1st |
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| 5/20/2018 | Quincy Raceways - Quincy, IL 305 Sprints - Winged, DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 2nd | - | - | 1st |
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| 5/27/2018 | Quincy Raceways - Quincy, IL Sunday Funday DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 2nd | - | - | 2nd |
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| 5/28/2018 | Peoria Speedway - Peoria, IL Billy Neal Memorial DIRTcar UMP Modifieds, B Modifieds, Hornets, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 3rd | - | - | 4th |
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| 6/3/2018 | Quincy Raceways - Quincy, IL 305 Sprints - Winged, DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 1st | - | - | 1st |
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| 6/13/2018 | Peoria Speedway - Peoria, IL Summer Nationals DIRTcar Late Models: DIRTcar Summer Nationals DIRTcar UMP Modifieds, B Modifieds, Hornets | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 3rd | - | - | 9th |
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| 6/17/2018 | Quincy Raceways - Quincy, IL 305 Sprints - Winged, DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 4th | - | - | 1st |
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| 6/24/2018 | Quincy Raceways - Quincy, IL Mississippi Belle Company DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 1st | - | - | 3rd |
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| 7/1/2018 | Quincy Raceways - Quincy, IL CASEY'S GENERAL STORE DIRTcar UMP Modifieds, Winged A-Class, B Modifieds, Street Stocks, Enduro, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 1st | - | - | 1st |
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| 7/22/2018 | Quincy Raceways - Quincy, IL DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 2nd | - | - | 1st |
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| 8/5/2018 | Quincy Raceways - Quincy, IL DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 1st | - | - | 1st |
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| 8/12/2018 | Quincy Raceways - Quincy, IL WCOY 99.5 DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 1st | - | - | 1st |
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| 8/19/2018 | Quincy Raceways - Quincy, IL DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 1st | - | - | 1st |
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| 8/26/2018 | Quincy Raceways - Quincy, IL OUTDOOR POWER DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 1st | - | - | 1st |
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| 9/23/2018 | Quincy Raceways - Quincy, IL DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 2nd | - | - | 2nd |
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| 9/30/2018 | Quincy Raceways - Quincy, IL BARNEY'S TAVERN CHAMPIONSHIP NIGHT DIRTcar UMP Modifieds, B Modifieds, Street Stocks, Enduro, Sport Compact, Dirt Crate Late Models | Results | | Dave Wietholder (DIRTcar UMP Modifieds) | 2nd | - | - | 1st |
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| 11/29/2018 | The Dome at America's Center - St. Louis, MO Dirt Super Late Models, A Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds | Results | | Dave Wietholder (A Modifieds) | 5th | - | - | - |
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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 | | Dave Wietholder (A Modifieds) | - | - | - | 20th (DNF) |
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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 | | Dave Wietholder (A Modifieds) | - | - | 3rd | 8th |
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