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| 4/2/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #1 Sprint Cars, Stock Cars, Dwarf, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 1st | - | - | 3rd |
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| 4/3/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #2 Sprint Cars, Stock Cars, Dwarf, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 5th | - | - | 2nd |
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| 4/10/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #3 Stock Cars, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 1st | - | - | 14th |
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| 4/17/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #4 Stock Cars, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 2nd | - | - | 4th |
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| 5/7/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #5 Stock Cars, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 2nd | 4th | - | 7th |
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| 5/8/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #6 Sprint Cars, Stock Cars, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 6th | - | - | 8th |
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| 6/4/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #7 Sprint Cars, Stock Cars, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 1st | - | - | 4th |
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| 6/11/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #8 Stock Cars, Sport Compact, Super Stocks, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 1st | - | - | 14th |
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| 6/12/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #9 Stock Cars, Sport Compact, Super Stocks, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 2nd | - | - | 5th |
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| 7/3/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #10 Sprint Cars, Stock Cars, Sport Compact, Super Stocks, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 3rd | - | 2nd | 14th |
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| 7/4/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #11 Sprint Cars, Stock Cars, Sport Compact, Super Stocks, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 2nd | - | - | 5th |
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| 7/10/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #12 Stock Cars, Dwarf, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 1st | - | - | 4th |
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| 7/25/2021 | Diamond Mountain Speedway (CA) - Susanville, CA Points Race #13 Stock Cars, Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Richard Longacre (IMCA Northern SportMod) | 5th | - | - | 2nd |
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