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| 3/19/2021 | Bristol Motor Speedway - Bristol, TN Bristol Dirt Nationals Dirt Super Late Models: XR Workin' Man Series DIRTcar UMP Modifieds | Results | | Tim Isenberg (Dirt Super Late Models) | 11th (DNF) | - | DNS | - |
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| 3/20/2021 | Bristol Motor Speedway - Bristol, TN Bristol Dirt Nationals Dirt Super Late Models: XR Workin' Man Series DIRTcar UMP Modifieds, Stock Cars, A Modifieds, Hornets, IMCA Sport Compact, 604 Crate Late Models | Results | | Tim Isenberg (Dirt Super Late Models) | 5th | - | 6th | - |
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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 | | Tim Isenberg (Dirt Late Models) | 5th | - | - | 24th (DNF) |
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| 8/5/2021 | Cedar Lake Speedway - New Richmond, WI 34th Annual USA Nationals Night 1 Dirt Super Late Models: World of Outlaws - Late Models USRA Late Models | Results | | Tim Isenberg (Dirt Super Late Models) | - | - | - | - |
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| 8/6/2021 | Cedar Lake Speedway - New Richmond, WI 34th Annual USA Nationals Night 2 Dirt Super Late Models: World of Outlaws - Late Models Dirt Late Models | Results | | Tim Isenberg (Dirt Late Models) | 10th (DNF) | - | 6th | 20th (DNF) |
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| 8/7/2021 | Cedar Lake Speedway - New Richmond, WI 34th Annual USA Nationals Night 3 Dirt Super Late Models: World of Outlaws - Late Models Dirt Late Models | Results | | Tim Isenberg (Dirt Late Models) | 4th | - | - | 12th (DNF) |
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| 9/16/2021 | Cedar Lake Speedway - New Richmond, WI 16th Annual Legendary 100 Night 1 Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Street Stocks, Dirt Late Models, 305 Sprints - Non-Winged, Pony Stock, Super Stocks, Pure Stock, USRA Late Models, WISSOTA Midwest Mods | Results | | Tim Isenberg (Dirt Late Models) | - | - | - | 14th |
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| 9/17/2021 | Cedar Lake Speedway - New Richmond, WI 16th Annual Legendary 100 Night 2 Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Street Stocks, Dirt Late Models, 305 Sprints - Non-Winged, Pony Stock, Super Stocks, Pure Stock, USRA Late Models, WISSOTA Midwest Mods | Results | | Tim Isenberg (Dirt Late Models) | - | - | - | 17th |
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| 9/18/2021 | Cedar Lake Speedway - New Richmond, WI 16th Annual Legendary 100 Night 3 Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Street Stocks, Dirt Late Models, 305 Sprints - Non-Winged, Pony Stock, Super Stocks, Pure Stock, USRA Late Models, WISSOTA Midwest Mods | Results | | Tim Isenberg (Dirt Late Models) | - | - | - | DNS |
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