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| 4/3/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #1 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks, USRA Late Models | Results | | Colby Mann (Midwest Modifieds) | 5th | - | 4th | DNS |
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| 5/7/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Tuner Special 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 9th |
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| 5/8/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 7th |
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| 5/15/2021 | Deer Creek Speedway - Spring Valley, MN Points Race A Modifieds, USRA B-Mods, USRA Modifieds, USRA Late Models, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Colby Mann (USRA B-Mods) | 5th | - | - | 8th |
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| 5/22/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 4th |
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| 5/29/2021 | Deer Creek Speedway - Spring Valley, MN 18th Annual USMTS Southern MN Spring Challenge A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Stock Cars, WISSOTA Midwest Mods | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 20th (DNF) |
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| 6/11/2021 | Mississippi Thunder Speedway - Fountain City, WI Weekly Racing Hornets, USRA B-Mods, USRA Modifieds, USRA Late Models, USRA Hobby Stocks | Results | | Colby Mann (USRA B-Mods) | 5th | - | - | 11th |
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| 6/12/2021 | Winneshiek Raceway - Decorah, IA USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners, Mod Lites | Results | | Colby Mann (USRA B-Mods) | 6th | - | - | 7th |
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| 6/18/2021 | Fayette County Speedway - West Union, IA Weekly Points Race 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 15th (DNF) |
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| 6/19/2021 | Deer Creek Speedway - Spring Valley, MN Pink Out Night - Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 11th |
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| 7/2/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by The Place in Protivin ~ $100 extra to each feature winner 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 3rd | - | - | 8th |
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| 7/3/2021 | Deer Creek Speedway - Spring Valley, MN Fireworks - Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Colby Mann (USRA B-Mods) | 4th | - | - | 9th |
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| 7/9/2021 | Mississippi Thunder Speedway - Fountain City, WI Firecracker 40 Dirt Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 7th |
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| 7/10/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Colby Mann (USRA B-Mods) | 4th | - | - | 26th (DNF) |
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| 7/13/2021 | Winneshiek Raceway - Decorah, IA Winneshiek County Fair Race USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners, Mod Lites | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 5th |
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| 7/16/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by KAR Auto & No Limit Diesel 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 2nd |
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| 7/21/2021 | Fayette County Speedway - West Union, IA Fayette County Fair Race - Rage Chassis 40 USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, IMCA Modified | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 24th (DNF) |
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| 7/23/2021 | Mississippi Thunder Speedway - Fountain City, WI Weekly Racing USRA B-Mods, USRA Modifieds, USRA Late Models, USRA Hobby Stocks | Results | | Colby Mann (USRA B-Mods) | 3rd | - | - | 10th |
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| 7/30/2021 | Mississippi Thunder Speedway - Fountain City, WI K-Town Klash USRA B-Mods, USRA Modifieds, USRA Late Models, USRA Hobby Stocks | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 8th |
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| 7/31/2021 | Winneshiek Raceway - Decorah, IA Upper Iowa Speedway - Weekly Points Race USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners, Mod Lites | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 5th |
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| 8/6/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Iowa Donor Network Race 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 5th |
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| 8/7/2021 | Winneshiek Raceway - Decorah, IA Upper Iowa Speedway - Weekly Points Race USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners, Mod Lites | Results | | Colby Mann (USRA B-Mods) | 3rd | - | - | 6th |
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| 8/13/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by Chase Trucking ~ Hall of Fame - $1000 to win Hobby Stocks 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 3rd | - | - | 5th |
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| 8/14/2021 | Deer Creek Speedway - Spring Valley, MN Veterans Night- Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Colby Mann (USRA B-Mods) | 4th | - | - | 13th |
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| 8/15/2021 | Mason City Motor Speedway - Mason City, IA B-Mod Challenge Presented by Kabrick Distributing 600cc Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 5th |
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| 8/20/2021 | Fayette County Speedway - West Union, IA 2021 Season Championship ~ Sponsored by Appliance Plus of West Union 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 2nd |
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| 8/21/2021 | Winneshiek Raceway - Decorah, IA Upper Iowa Speedway - Weekly Points Race - Race Sponsored by LetterWerks USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners, Mod Lites | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 11th (DNF) |
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| 9/4/2021 | Deer Creek Speedway - Spring Valley, MN 16th Annual USMTS Labor Day Duel A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Late Models, USRA Stock Cars | Results | | Colby Mann (USRA B-Mods) | 2nd | - | - | 25th (DNF) |
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| 9/5/2021 | Fayette County Speedway - West Union, IA USMTS A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 3rd |
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| 9/23/2021 | Deer Creek Speedway - Spring Valley, MN 23rd Annual Featherlite Fall Jamboree USRA B-Mods, USRA Modifieds | Results | | Colby Mann (USRA B-Mods) | 3rd | - | - | 17th |
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| 9/24/2021 | Deer Creek Speedway - Spring Valley, MN 23rd Annual Featherlite Fall Jamboree A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods | Results | | Colby Mann (USRA B-Mods) | 3rd | - | - | 8th |
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| 9/25/2021 | Deer Creek Speedway - Spring Valley, MN 23rd Annual Featherlite Fall Jamboree A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods | Results | | Colby Mann (USRA B-Mods) | 6th | - | 3rd | 15th |
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| 10/2/2021 | Mississippi Thunder Speedway - Fountain City, WI The Great Pumpkin Race Hornets, USRA B-Mods, USRA Modifieds, USRA Late Models, USRA Hobby Stocks, USRA Stock Cars | Results | | Colby Mann (USRA B-Mods) | 1st | - | - | 10th |
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| 10/6/2021 | Lucas Oil Speedway - Wheatland, MO Practice Night USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | - | - | - | - |
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| 10/7/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks | Results | | Colby Mann (USRA B-Mods) | 3rd | - | 1st | 12th |
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| 10/8/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 5th | - | 2nd | 10th |
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| 10/9/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | - | - | 2nd | 18th |
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| 10/16/2021 | Mason City Motor Speedway - Mason City, IA Five Star Classic 600cc Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Colby Mann (USRA B-Mods) | 4th | - | - | 6th |
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