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| 4/28/2018 | Wagner Speedway - Wagner, SD Test and Tune 360 Sprints - Winged, Hobby Stocks, B Modifieds, Street Stocks, Dirt Late Models, Sport Compact | Results | | Gary Brown Jr (Dirt Late Models) | - | - | - | - |
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| 4/29/2018 | Interstate Speedway (SD) - Jefferson, SD Raceway Park Dirt Late Models: Tri-State Late Models | Results | | Gary Brown Jr (Dirt Late Models) | - | - | - | 2nd |
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| 5/5/2018 | Park Jefferson International Speedway - Jefferson, SD SLMR-Super Late Models plus IMCA Weekly Racing-Road to the Iron Cup IMCA Sport Mods Dirt Super Late Models: SLMR Late Model Series 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Gary Brown Jr (Dirt Super Late Models) | 4th | - | - | 12th |
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| 5/25/2018 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + SLMR Dirt Super Late Models: SLMR Late Model Series DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Gary Brown Jr (Dirt Super Late Models) | 1st | - | - | 10th |
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| 5/31/2018 | Sioux Speedway - Sioux Center, IA Sioux Speedway Dirt Late Models: Tri-State Late Models | Results | | Gary Brown Jr (Dirt Late Models) | 1st | - | - | 2nd |
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| 6/15/2018 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + Tri State Late Models Dirt Late Models: Tri-State Late Models DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Economy Late Models | Results | | Gary Brown Jr (Dirt Late Models) | 1st | - | - | 6th | | Gary Brown Jr (Economy Late Models) | - | - | - | - |
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| 6/17/2018 | Interstate Speedway (SD) - Jefferson, SD Raceway Park Dirt Late Models: Tri-State Late Models | Results | | Gary Brown Jr (Dirt Late Models) | - | - | - | 2nd |
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| 6/29/2018 | Wagner Speedway - Wagner, SD WS Dirt Late Models: Tri-State Late Models Hobby Stocks, B Modifieds, Sport Compact, WISSOTA Super Stock | Results | | Gary Brown Jr (Dirt Late Models) | 3rd | - | - | 3rd |
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| 7/17/2018 | Rapid Speedway - Rock Rapids, IA 3rd Annual Randy Droescher Memorial Dirt Late Models: Tri-State Late Models 360 Sprints - Winged, DIRTcar Late Models | Results | | Gary Brown Jr (Dirt Late Models) | 2nd | - | - | 5th | | Gary Brown Jr (Economy Late Models) | - | - | - | - |
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| 7/22/2018 | Interstate Speedway (SD) - Jefferson, SD Raceway Park Dirt Late Models: Tri-State Late Models | Results | | Gary Brown Jr (Dirt Late Models) | 4th | - | - | 2nd |
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| 7/25/2018 | Jackson Motorplex - Jackson, MN Bank Midwest Night featuring the Ben Nothdurft Memorial for the Trip-State Late Models Dirt Late Models: Tri-State Late Models Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Gary Brown Jr (Dirt Late Models) | 4th | - | - | 25th (DNF) |
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| 8/24/2018 | Wagner Speedway - Wagner, SD WS Dirt Late Models: Tri-State Late Models Hobby Stocks, B Modifieds, Sport Compact, WISSOTA Super Stock | Results | | Gary Brown Jr (Dirt Late Models) | 6th (DNF) | - | - | 8th |
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| 9/8/2018 | Wagner Speedway - Wagner, SD September Sprint-tacular Dirt Late Models: Tri-State Late Models 360 Sprints - Winged, 305 Sprints - Winged, Hobby Stocks, B Modifieds, Street Stocks | Results | | Gary Brown Jr (Dirt Late Models) | 2nd | - | - | 2nd |
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| 9/15/2018 | Rapid Speedway - Rock Rapids, IA Rapid Nationals Night #2 Dirt Late Models: Tri-State Late Models DIRTcar Late Models, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Gary Brown Jr (Dirt Late Models) | 1st | - | - | 3rd | | Gary Brown Jr (Economy Late Models) | - | - | - | - |
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