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| 4/24/2021 | Sheridan Speedway - Sheridan, WY Sponsored by Big Horn Mountain Radio Network Dirt Mini Trucks, Dwarf, IMCA Modified, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Late Model, WISSOTA Street Stock | Results | | Jeffery Cooper II (IMCA Modified) | 7th | - | - | 19th (DNF) |
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| 5/1/2021 | Casper Speedway - Casper, WY Season Opener Stock Cars, Vintage Modifieds, Dwarf, IMCA Modified, IMCA Hobby Stock, WISSOTA Midwest Mods, WISSOTA Mod Four | Results | | Jeffery Cooper II (IMCA Modified) | 3rd | - | - | 7th |
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| 5/28/2021 | Sweetwater Speedway - Rock Springs, WY Rudy Yeager Memorial Dwarf: Western States Dwarf Car Association A Modifieds, B Modifieds, Street Stocks, 250 yamaha, Asphalt Street Stocks, Generic 1, Generic 2, Speedstr | Results | | Jeffery Cooper II (A Modifieds) | 6th | - | 9th | - |
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| 5/29/2021 | Sweetwater Speedway - Rock Springs, WY Rudy Yeager Memorial Dwarf: Western States Dwarf Car Association A Modifieds, B Modifieds, Street Stocks, 250 yamaha, Asphalt Street Stocks, Generic 1, Generic 2, Speedstr | Results | | Jeffery Cooper II (A Modifieds) | 6th | - | 5th | - |
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| 6/4/2021 | Casper Speedway - Casper, WY Stock Cars, Dwarf, IMCA Modified, IMCA Hobby Stock, WISSOTA Midwest Mods | Results | | Jeffery Cooper II (IMCA Modified) | 5th | - | - | 5th (DNF) |
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| 6/18/2021 | Sweetwater Speedway - Rock Springs, WY Wild West Modified Tour A Modifieds: Wild West Modified Tour B Modifieds, Street Stocks, 250 yamaha, Asphalt Street Stocks, Generic 1, Generic 2 | Results | | Jeffery Cooper II (A Modifieds) | 6th | - | 10th (DNF) | - |
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| 6/19/2021 | Sweetwater Speedway - Rock Springs, WY Wild West Modified Tour A Modifieds: Wild West Modified Tour B Modifieds, Street Stocks, 250 yamaha, Asphalt Street Stocks, Generic 1, Generic 2 | Results | | Jeffery Cooper II (A Modifieds) | 7th | - | 9th | - |
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| 7/2/2021 | Sweetwater Speedway - Rock Springs, WY Star Spangled Weekend of Racing A Modifieds, B Modifieds, Street Stocks, 125cc Winged Micros, 250 yamaha, Asphalt Street Stocks, Generic 1, Generic 2 | Results | | Jeffery Cooper II (A Modifieds) | 6th | - | - | 23rd |
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| 7/3/2021 | Sweetwater Speedway - Rock Springs, WY Star Spangled Late Model and Non-Winged Sprint Car Show Dirt Super Late Models: High Plains Late Models A Modifieds, B Modifieds, Street Stocks, Non-Winged Sprints, 305 Sprints - Non-Winged, 125cc Winged Micros, 250 yamaha, Generic 1, Generic 2 | Results | | Jeffery Cooper II (A Modifieds) | 5th | - | 6th | 18th |
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| 7/4/2021 | Sweetwater Speedway - Rock Springs, WY Star Spangled Late Model and Non-Winged Sprint Car Show - with FIREWORKS!!!! Dirt Super Late Models: High Plains Late Models A Modifieds, Non-Winged Sprints, 305 Sprints - Non-Winged, 125cc Winged Micros, 250 yamaha, Asphalt Street Stocks, Generic 1, Generic 2 | Results | | Jeffery Cooper II (A Modifieds) | 5th | - | - | 19th |
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| 9/3/2021 | Sweetwater Speedway - Rock Springs, WY Labor Day Season Finale 360 Sprints - Winged: ASCS Frontier Region A Modifieds, B Modifieds, Street Stocks, 250 yamaha, Asphalt Street Stocks, Generic 1, Generic 2 | Results | | Jeffery Cooper II (A Modifieds) | - | - | - | - |
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| 9/4/2021 | Sweetwater Speedway - Rock Springs, WY Labor Day Season Finale 360 Sprints - Winged: ASCS Frontier Region A Modifieds, B Modifieds, Street Stocks, 250 yamaha, Asphalt Street Stocks, Generic 1, Generic 2 | Results | | Jeffery Cooper II (A Modifieds) | 6th (DNF) | - | - | 16th (DNF) |
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| 9/25/2021 | Sheridan Speedway - Sheridan, WY Fall Classic - Sponsored by Sheridan Motorsports Association IMCA Modified, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Street Stock | Results | | Jeffery Cooper II (IMCA Modified) | 6th | - | - | 14th (DNF) |
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