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| 3/13/2021 | Antioch Speedway - Antioch, CA Wingless Sprints, Dwarf Cars, Hobby Stocks, Super Stocks Hobby Stocks, Stock Cars, Non-Winged Sprints, Dwarf, IMCA Northern SportMod | Results | | Mark Garner (IMCA Northern SportMod) | 2nd | - | - | 3rd |
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| 3/20/2021 | Antioch Speedway - Antioch, CA IMCA Modifieds, IMCA Sport Modifieds, IMCA Stock Cars, Dwarf Cars Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Garner (IMCA Northern SportMod) | 7th | - | 4th | 9th |
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| 4/2/2021 | Ocean Speedway - Watsonville, CA Taco Bravo Round # 3 360 Sprints - Winged, Hobby Stocks, A Modifieds, B Modifieds | Results | | Mark Garner (B Modifieds) | 3rd | - | - | 5th |
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| 4/3/2021 | Antioch Speedway - Antioch, CA IMCA Modifieds, IMCA Sport Modifieds, IMCA Stock Cars, Dwarf Cars Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Garner (IMCA Northern SportMod) | 1st | - | - | 7th |
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| 4/16/2021 | Merced Speedway - Merced, CA Al Miller Memorial Race #5 Hobby Stocks, A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Garner (B Modifieds) | 6th | - | 9th | - |
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| 4/17/2021 | Merced Speedway - Merced, CA Al Miller Memorial Race #6 Hobby Stocks, A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Garner (B Modifieds) | 9th | - | 5th | - |
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| 5/29/2021 | Antioch Speedway - Antioch, CA Freedom Series IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Garner (IMCA Northern SportMod) | 2nd | - | - | 16th |
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| 5/30/2021 | Antioch Speedway - Antioch, CA Freedom Series IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Garner (IMCA Northern SportMod) | 3rd | - | - | 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 | | Mark Garner (IMCA Northern SportMod) | 3rd | - | - | 10th |
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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 | | Mark Garner (IMCA Northern SportMod) | 3rd | - | - | 10th |
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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 | | Mark Garner (IMCA Northern SportMod) | 1st | - | - | 2nd |
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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 | | Mark Garner (IMCA Northern SportMod) | 4th | - | - | 22nd |
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| 8/7/2021 | Antioch Speedway - Antioch, CA IMCA Modifieds, IMCA Sport Modifieds, IMCA Stock Cars, Mini Stocks Factory Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Garner (IMCA Northern SportMod) | 3rd | - | - | 7th |
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| 8/21/2021 | Antioch Speedway - Antioch, CA BCRA Midgets, 600 Micro Sprint Non-Winged, Hobby Stocks, Mini Stocks Midgets: BCRA - Bay Cities Racing Association Champ 360 Sprints - Winged, Factory Stocks, Hobby Stocks, 1200cc Outlaws Winged Minis | Results | | Mark Garner (Hobby Stocks) | 1st | 4th | - | 17th |
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| 9/24/2021 | Ocean Speedway - Watsonville, CA 11th Annual Pettit Shootout Night # 1 Hobby Stocks, A Modifieds, B Modifieds | Results | | Mark Garner (B Modifieds) | 4th | - | 2nd | 20th |
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| 9/25/2021 | Ocean Speedway - Watsonville, CA 11th Annual Pettit Shootout Night # 2 Hobby Stocks, A Modifieds, B Modifieds | Results | | Mark Garner (B Modifieds) | 4th | - | 3rd | - |
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| 10/22/2021 | Antioch Speedway - Antioch, CA Dwarf Car Mania II Night #1 Dirt Late Models, Dwarf | Results | | Mark Garner (Dirt Late Models) | 3rd | - | - | 4th |
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| 10/30/2021 | Antioch Speedway - Antioch, CA Co Co Farms - Pacific Coast Nationals - Hobby Stocks Night #2 Hobby Stocks, Stock Cars, Dirt Late Models, IMCA Modified, IMCA Stock Car | Results | | Mark Garner (Dirt Late Models) | 5th | - | - | 9th |
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