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| 4/2/2021 | Davenport Speedway - Davenport, IA Enduro / Practice A Modifieds, B Modifieds, Street Stocks, Dirt Late Models, Hornets, Sport Compact | Results | | Joe Zrostlik (Hornets) | - | - | - | 1st |
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| 4/17/2021 | Maquoketa Speedway - Maquoketa, IA Season Opener w/ Midwest Jalopies Pro Legends, Vintage Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Joe Zrostlik (IMCA Stock Car) | 1st | - | - | 1st |
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| 4/24/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing $250 to win Sport Compacts Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Joe Zrostlik (IMCA Stock Car) | 3rd | - | - | 1st |
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| 4/30/2021 | Davenport Speedway - Davenport, IA Davenport Speedway Weekly Racing A Modifieds, B Modifieds, Street Stocks, Dirt Late Models, Sport Compact | Results | | Joe Zrostlik (Dirt Late Models) | 4th | - | - | 7th |
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| 5/6/2021 | Marshalltown Speedway - Marshalltown, IA Dale DeFrance Memorial Thursday Night Thunder Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Joe Zrostlik (IMCA Late Models) | 3rd | - | - | 2nd |
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| 5/7/2021 | Davenport Speedway - Davenport, IA Davenport Speedway Weekly Racing A Modifieds, B Modifieds, Street Stocks, Dirt Late Models, Sport Compact, IMCA Modified | Results | | Joe Zrostlik (Dirt Late Models) | 3rd | - | - | 5th |
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| 5/12/2021 | Stuart Speedway - Stuart, IA Jake Durbin Memorial 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact, IMCA Mod Lite | Results | | Joe Zrostlik (IMCA Stock Car) | 6th | - | 3rd | 13th |
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| 5/23/2021 | Hawkeye Downs Speedway - Cedar Rapids, IA Enduro - Summer BBQ Cookout Sport Compact | Results | | Joe Zrostlik (Sport Compact) | - | - | - | 3rd |
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| 5/30/2021 | Stuart Speedway - Stuart, IA Whole Hog 50 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact, IMCA Mod Lite | Results | | Joe Zrostlik (IMCA Stock Car) | 2nd | - | - | 7th |
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| 5/31/2021 | Stuart Speedway - Stuart, IA Whole Hog 50 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Joe Zrostlik (IMCA Stock Car) | 6th | - | 3rd | 16th |
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| 6/15/2021 | Stuart Speedway - Stuart, IA Dynamic Drivelines Dirt Duel IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact, IMCA Mod Lite | Results | | Joe Zrostlik (IMCA Stock Car) | 4th | - | - | - |
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| 6/16/2021 | Buena Vista Raceway - Alta, IA Jimmy Squibb Memorial Race Hobby Stocks, Stock Cars, B Modifieds, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Joe Zrostlik (IMCA Stock Car) | - | - | - | 12th (DNF) |
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| 6/16/2021 | Stuart Speedway - Stuart, IA Dynamic Drivelines Dirt Duel 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Joe Zrostlik (IMCA Stock Car) | - | - | - | 9th |
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| 6/18/2021 | Davenport Speedway - Davenport, IA Weekly Racing w/ Hoker Trucking SLMR Late Models Dirt Super Late Models: SLMR Late Model Series A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Joe Zrostlik (Street Stocks) | 4th | - | - | 6th | | Joe Zrostlik (Sport Compact) | 1st | - | - | 7th |
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| 6/23/2021 | Buena Vista Raceway - Alta, IA Hobby Stocks, Stock Cars, B Modifieds, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Joe Zrostlik (IMCA Stock Car) | - | - | - | - |
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| 7/1/2021 | Davenport Speedway - Davenport, IA DIRTcar Summer Nationals Hell Tour DIRTcar Late Models: DIRTcar Summer Nationals A Modifieds, Street Stocks, Dirt Late Models | Results | | Joe Zrostlik (Dirt Late Models) | 1st | - | - | 4th |
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| 7/14/2021 | Cedar County Raceway - Tipton, IA Cedar County Fair Race Street Stocks, Vintage Modifieds, IMCA Modified, IMCA Sport Compact, IMCA Mod Lite | Results | | Joe Zrostlik (IMCA Sport Compact) | 2nd | - | - | 2nd |
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| 7/27/2021 | Davenport Speedway - Davenport, IA Hoker 50 featuring MARS Late Models Dirt Super Late Models, A Modifieds, Dirt Late Models | Results | | Joe Zrostlik (Dirt Late Models) | 3rd | - | - | 11th |
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| 7/29/2021 | Maquoketa Speedway - Maquoketa, IA Jackson County Fair Race Pro Legends, Vintage Full Body Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Joe Zrostlik (IMCA Stock Car) | 2nd | - | - | 3rd |
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| 7/30/2021 | Cedar County Raceway - Tipton, IA 28th Annual Gary Reinhart Memorial Street Stocks, Vintage Full Body Stock Cars, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Sport Compact | Results | | Joe Zrostlik (IMCA Late Models) | 2nd | - | - | 12th |
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| 8/1/2021 | Dubuque Fairgrounds Speedway - Dubuque, IA Julien Dubuque Classic Fair Race Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, IMCA Late Models, Sport Compact, Dirt Mini Late Models | Results | | Joe Zrostlik (Stock Cars) | 1st | - | - | 1st | | Joe Zrostlik (Sport Compact) | 2nd | - | - | 2nd |
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| 8/7/2021 | 34 Raceway - West Burlington, IA High 5 for Kids Night Presented by The New Mix 107.3 305 Sprints - Winged, Dirt Super Late Models, Stock Cars, A Modifieds, Dirt Late Models, Limited Sport Mod, Sport Compact | Results | | Joe Zrostlik (Stock Cars) | 6th | - | - | 4th |
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| 8/13/2021 | Davenport Speedway - Davenport, IA Ronnie Weedon Memorial Weekly Racing Sportsmans, A Modifieds, B Modifieds, Street Stocks, Dirt Late Models, Sport Compact | Results | | Joe Zrostlik (Street Stocks) | 2nd | - | - | 5th |
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| 8/20/2021 | Davenport Speedway - Davenport, IA Davenport Speedway Season Championship A Modifieds, B Modifieds, Street Stocks, Dirt Late Models, Sport Compact | Results | | Joe Zrostlik (Sport Compact) | 1st | - | - | 2nd |
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| 8/28/2021 | 34 Raceway - West Burlington, IA Pepsi Season Championship - $5 Fan Appreciation 305 Sprints - Winged, Stock Cars, A Modifieds, Dirt Late Models, 2WD Trucks, Limited Sport Mod, Sport Compact | Results | | Joe Zrostlik (Stock Cars) | 3rd | - | - | 6th |
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| 8/29/2021 | Dubuque Fairgrounds Speedway - Dubuque, IA McDermott Excavating Season Championship Night Hobby Stocks, A Modifieds, B Modifieds, Masters Legends, IMCA Late Models, Sport Compact | Results | | Joe Zrostlik (Sport Compact) | 2nd | - | - | 2nd |
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| 9/6/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Late Models, IMCA Northern SportMod, IMCA Hobby Stock | Results | | Joe Zrostlik (IMCA Late Models) | 3rd | - | - | 12th |
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| 9/19/2021 | East Moline Speedway - East Moline, IL Eriksen Chevrolet Salute To Gary Webb Late Model Special Vintage Full Body Stock Cars, IMCA Late Models, Sport Compact, IMCA Modified, IMCA Northern SportMod, Mod Lites | Results | | Joe Zrostlik (IMCA Late Models) | 1st | - | - | 6th |
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| 9/30/2021 | Cedar County Raceway - Tipton, IA Hoker Trucking Darkside Fall Bash IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Joe Zrostlik (IMCA Late Models) | 3rd | - | - | 5th | | Joe Zrostlik (IMCA Sport Compact) | 3rd | - | - | 1st |
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| 10/1/2021 | Cedar County Raceway - Tipton, IA Hoker Trucking Darkside Fall Bash 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Joe Zrostlik (IMCA Stock Car) | 1st | - | - | 6th |
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| 10/2/2021 | Cedar County Raceway - Tipton, IA Hoker Trucking Darkside Fall Bash Street Stocks, Vintage Full Body Stock Cars, Super Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Joe Zrostlik (IMCA Stock Car) | DNS | - | - | DNS |
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| 10/14/2021 | Dubuque Fairgrounds Speedway - Dubuque, IA Iowa Dirt Nationals Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, IMCA Late Models, IMCA Modified | Results | | Joe Zrostlik (Stock Cars) | 1st | - | - | 2nd |
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| 10/15/2021 | Dubuque Fairgrounds Speedway - Dubuque, IA Iowa Dirt Nationals Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Semi-Pro Legends, Sport Compact, IMCA Modified | Results | | Joe Zrostlik (Stock Cars) | 3rd | - | - | 4th | | Joe Zrostlik (Sport Compact) | 3rd | - | - | 4th |
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