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| 4/18/2021 | Corrigan Oil Speedway - Mason, MI Test and Tune #2 Asphalt Late Models, Street Stocks, Bandits, Semi-Pro Legends, Asphalt Sportsman Late Models, Asphalt Small Block Modifieds, Pony Stock, Pure Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | - | - | - | - |
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| 4/23/2021 | Corrigan Oil Speedway - Mason, MI NorthsideTowing.net Big 8 Super Late Model Series presented by Auto Value Parts Stores Race #1 Asphalt Late Models, Bandits, Asphalt Sportsman Late Models, Asphalt Small Block Modifieds, Pony Stock, Pure Stock | Results | | Justin Kazmar (Asphalt Late Models) | - | - | - | - | | Justin Kazmar (Asphalt Small Block Modifieds) | 3rd | - | - | 6th |
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| 4/30/2021 | Corrigan Oil Speedway - Mason, MI Howard Hanna Real Estate Executive Modified Challenge Series Race #1 Street Stocks, Bandits, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Small Block Modifieds, Pony Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | 3rd | - | - | 5th |
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| 5/15/2021 | Kalamazoo Speedway - Kalamazoo, MI Modified Nationals A Modifieds, Asphalt Street Stocks, Asphalt Rookie Stocks | Results | | Justin Kazmar (A Modifieds) | - | - | 5th | - |
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| 5/30/2021 | Corrigan Oil Speedway - Mason, MI Sunday Slugfest Series #1 / Howard Hanna Real Estate Executives Modified Challenge Series Race #3 Street Stocks, Bandits, Semi-Pro Legends, Asphalt 4-Cylinders, Asphalt Small Block Modifieds, Pony Stock, Figure 8 - FWD Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | 3rd | - | - | 15th (DNF) |
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| 6/18/2021 | Corrigan Oil Speedway - Mason, MI Northside Towing.net Big 8 Super Late Model Series presented by Auto Value Asphalt Late Models, Bandits, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Small Block Modifieds, Pony Stock, Pure Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | - | - | - | 8th |
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| 7/9/2021 | Corrigan Oil Speedway - Mason, MI I-500 Night! Friday night under the lights! Street Stocks, Bandits, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Small Block Modifieds, Pony Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | 2nd | - | - | 4th |
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| 7/18/2021 | Corrigan Oil Speedway - Mason, MI Slugfest #3! Modified Challenge Series #4! Garza Memorial FWD Race! Figure 8! Sheriffs Race! Street Stocks, Bandits, Semi-Pro Legends, Asphalt 4-Cylinders, Asphalt Small Block Modifieds, Pony Stock, Figure 8 - FWD Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | 4th | - | - | 8th |
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| 7/30/2021 | Corrigan Oil Speedway - Mason, MI Howard Hanna Real Estate Executive Modified Challenge Series Race #6 - Autograph Night! Street Stocks, Bandits, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Small Block Modifieds, Pony Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | 6th | - | - | 9th |
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| 8/13/2021 | Corrigan Oil Speedway - Mason, MI Northside Towing.net Big 8 Outlaw Super Late Model Series, VARC - MMHOF, MARFC, Old Timers Night! Asphalt Late Models, Street Stocks, Bandits, Asphalt 4-Cylinders, Asphalt Small Block Modifieds, Pony Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | 5th | - | - | 7th |
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| 9/5/2021 | Corrigan Oil Speedway - Mason, MI Annual Harvest 100! Asphalt Late Models, Street Stocks, Bandits, Semi-Pro Legends, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Small Block Modifieds, Pony Stock, Pure Stock, Figure 8 - FWD Stock | Results | | Justin Kazmar (Asphalt Small Block Modifieds) | - | - | - | 17th |
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| 10/9/2021 | Springport Mid-Michigan Speedway - Springport, MI 2021 Michigan Cup Day Two Asphalt Super Late Models, Stock Cars, Street Stocks, Asphalt Sport Mods, Asphalt 4 cyl Modifieds, Mini Wedge | Results | | Justin Kazmar (Asphalt 4 cyl Modifieds) | 4th | - | - | - |
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| 10/10/2021 | Springport Mid-Michigan Speedway - Springport, MI 2021 Michigan Cup Day Three Asphalt Super Late Models, Stock Cars, Street Stocks, Asphalt Sport Mods, Asphalt 4 cyl Modifieds, Mini Wedge | Results | | Justin Kazmar (Asphalt 4 cyl Modifieds) | - | - | - | 18th |
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