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| 6/15/2018 | Tri-City Motor Speedway - Auburn, MI Kids Night & Autographs Factory Stocks, Sportsmans, A Modifieds, Street Stocks, Dirt Late Models, Mini Wedge, Mini Outlaws | Results | | Bobby Kosha (Street Stocks) | 5th | - | - | 3rd |
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| 6/22/2018 | Tri-City Motor Speedway - Auburn, MI Winged Sprints Winged Sprints, Factory Stocks, Sportsmans, Street Stocks, Dirt Late Models, Mini Wedge, Mini Outlaws | Results | | Bobby Kosha (Street Stocks) | - | - | - | 12th (DNF) |
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| 6/29/2018 | Tri-City Motor Speedway - Auburn, MI Late Model Power Ball Night Factory Stocks, Sportsmans, A Modifieds, Street Stocks, Dirt Late Models, Mini Wedge, Mini Outlaws | Results | | Bobby Kosha (Street Stocks) | 7th (DNF) | - | - | 2nd |
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| 7/6/2018 | Tri-City Motor Speedway - Auburn, MI Figure 8 Night Factory Stocks, Stock Cars, Sportsmans, A Modifieds, Street Stocks, Dirt Late Models | Results | | Bobby Kosha (Street Stocks) | 2nd | - | - | 20th (DNF) |
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| 7/13/2018 | Tri-City Motor Speedway - Auburn, MI Faster Pastor & Fireworks A Modifieds, Street Stocks, Dirt Late Models, Generic 1, Mini Wedge, Mini Outlaws | Results | | Bobby Kosha (Street Stocks) | 1st | - | - | 2nd |
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| 7/27/2018 | Tri-City Motor Speedway - Auburn, MI Kids Night & Autographs Factory Stocks, Sportsmans, A Modifieds, Street Stocks, Dirt Late Models, Mini Wedge, Mini Outlaws | Results | | Bobby Kosha (Street Stocks) | 6th | - | 2nd | 14th |
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| 7/28/2018 | Thunderbird Raceway - Muskegon, MI Salute to Veterans Night! SS Shootout! LM, MOD, SS, CS, WAR, MW DIRTcar Late Models, Stock Cars, B Modifieds, Street Stocks, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Bobby Kosha (Street Stocks) | 4th | - | - | 18th (DNF) |
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| 8/3/2018 | Mount Pleasant Speedway - Mount Pleasant, MI Happy Birthday Dick Crook! Specials being planned. Hobby Stocks, Stock Cars, B Modifieds, Mini Wedge | Results | | Bobby Kosha (Hobby Stocks) | 6th | - | 10th | - |
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| 8/10/2018 | Tri-City Motor Speedway - Auburn, MI Championship Pre-Show Factory Stocks, Sportsmans, A Modifieds, Street Stocks, Dirt Late Models, Mini Wedge, Mini Outlaws | Results | | Bobby Kosha (Street Stocks) | 2nd | - | - | 15th (DNF) |
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| 8/17/2018 | Tri-City Motor Speedway - Auburn, MI Season Championships Factory Stocks, Sportsmans, A Modifieds, Street Stocks, Dirt Late Models, Mini Wedge, Mini Outlaws | Results | | Bobby Kosha (Street Stocks) | 2nd | - | - | 4th |
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| 8/24/2018 | Tri-City Motor Speedway - Auburn, MI Ring of Fire Factory Stocks, Sportsmans, Street Stocks, Dirt Late Models | Results | | Bobby Kosha (Street Stocks) | 3rd (DNF) | - | - | - |
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| 8/31/2018 | Tri-City Motor Speedway - Auburn, MI 360 Sprints - Winged: GLSS-Great Lakes Super Sprints Dirt Super Late Models, Sportsmans, A Modifieds, Street Stocks, Mini Wedge, Mini Outlaws | Results | | Bobby Kosha (Street Stocks) | 3rd | - | - | 1st |
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| 9/15/2018 | Crystal Motor Speedway - Crystal, MI GREAT LAKES NATIONALS Dirt Super Late Models, Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, 410 Sprints - Non-Winged, Junior 1 Lites Dirt Karts, Dirt Pro Trucks, Mini Wedge, Sport Compact | Results | | Bobby Kosha (Street Stocks) | 3rd | - | - | 15th |
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