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| 5/27/2018 | Merritt Speedway - Merritt, MI MEMORIAL WEEKEND DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Generic 1, Mini Wedge | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 1st | - | - | 3rd |
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| 6/1/2018 | Farmer City Raceway - Farmer City, IL A Modifieds, Street Stocks, Dirt Late Models, Hornets, Pro Late Model | Results | | Collin Thirlby (A Modifieds) | 2nd | - | - | 3rd |
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| 6/2/2018 | Fairbury Speedway - Fairbury, IL DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 2nd | - | - | 2nd |
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| 6/6/2018 | Merritt Speedway - Merritt, MI DIRTcar Late Models: American Ethanol Dirt Racing Group DIRTcar UMP Modifieds, Stock Cars, B Modifieds | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 2nd | - | - | 3rd |
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| 6/9/2018 | Merritt Speedway - Merritt, MI SPRINTS & PRO STOCK NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, 360 Sprints - Non-Winged, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 2nd | 4th | - | 1st |
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| 7/3/2018 | Merritt Speedway - Merritt, MI FAN APPRECIATION NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 2nd | - | - | 3rd |
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| 7/13/2018 | Oakshade Raceway - Wauseon, OH DIRTcar Summer Nationals DIRTcar UMP Modifieds: DIRTcar Modified Nationals DIRTcar Late Models | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 2nd | - | - | 5th |
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| 7/14/2018 | Oakshade Raceway - Wauseon, OH Birthday Race Summer National Finale DIRTcar Late Models, DIRTcar UMP Modifieds, Sport Compact | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 3rd | - | - | 21st |
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| 7/20/2018 | Merritt Speedway - Merritt, MI 30TH VANDUINEN WOOD TIC DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 2nd | - | 2nd | 4th |
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| 7/28/2018 | Merritt Speedway - Merritt, MI WEEKLY SHOW DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Enduro | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 2nd | - | - | 13th |
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| 8/3/2018 | Merritt Speedway - Merritt, MI 5OTH ANNIVERSARY NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 2nd | - | - | 3rd |
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| 8/4/2018 | Merritt Speedway - Merritt, MI 5OTH ANNIVERSARY NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | - | 1st | - | 4th |
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| 8/11/2018 | Merritt Speedway - Merritt, MI WEEKLY SHOW DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Collin Thirlby (DIRTcar UMP Modifieds) | 4th | - | - | 7th |
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| 9/21/2018 | I-96 Speedway - Lake Odessa, MI SPRINTS ON DIRT - Portland Community Fund Night 410 Sprints - Winged, Sportsmans, B Modifieds, Street Stocks, Hornets, Mini Wedge, Mini Outlaws | Results | | Collin Thirlby (B Modifieds) | 1st | - | - | 1st |
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