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| 4/30/2021 | Red Cedar Speedway - Menomonie, WI 5th Annual Randy Buss Ice Breaker Classic Hornets, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 4th | - | - | 3rd |
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| 5/1/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #4 360 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 | | Cory Mahder (A Modifieds) | 2nd | - | - | 4th |
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| 5/7/2021 | Mississippi Thunder Speedway - Fountain City, WI Dairyland Showdown with World of Outlaws Late Models Dirt Super Late Models: World of Outlaws - Late Models A Modifieds, USRA Modifieds | Results | | Cory Mahder (USRA Modifieds) | 1st | - | - | 1st |
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| 5/8/2021 | Mississippi Thunder Speedway - Fountain City, WI Dairyland Showdown with World of Outlaws Late Models Dirt Super Late Models: World of Outlaws - Late Models A Modifieds, USRA Modifieds | Results | | Cory Mahder (USRA Modifieds) | 2nd | - | - | 5th |
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| 5/28/2021 | Rapid Speedway - Rock Rapids, IA 13th Annual USMTS Rapid Rumble A Modifieds: USMTS - United States Modified Touring Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Cory Mahder (A Modifieds) | 2nd | - | - | 24th |
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| 6/4/2021 | Red Cedar Speedway - Menomonie, WI Dave Shackleton Super Stock Memorial Race $5k to Win - No Late Models Hornets, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 4th | - | - | 15th (DNF) |
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| 6/5/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #6 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks | Results | | Cory Mahder (A Modifieds) | 3rd | - | - | 13th |
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| 6/11/2021 | Red Cedar Speedway - Menomonie, WI Race of Champions Raindate - Regular Night Hornets, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 6th (DNF) | - | - | 4th |
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| 6/12/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #7 / Kids Night Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Super Stocks | Results | | Cory Mahder (A Modifieds) | 5th | - | - | 17th (DNF) |
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| 6/17/2021 | Cedar Lake Speedway - New Richmond, WI 22nd Annual Masters A Modifieds, Dirt Late Models, USRA Modifieds, USRA Late Models | Results | | Cory Mahder (USRA Modifieds) | 9th | - | 10th | - |
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| 6/18/2021 | Cedar Lake Speedway - New Richmond, WI 22nd Annual Masters A Modifieds: USMTS - United States Modified Touring Series Dirt Late Models, USRA Late Models, WISSOTA Modifieds | Results | | Cory Mahder (A Modifieds) | 1st | - | - | 5th |
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| 6/19/2021 | Cedar Lake Speedway - New Richmond, WI 22nd Annual Masters Limited Sprints - Winged: Upper Midwest Sprint Car Series A Modifieds: USMTS - United States Modified Touring Series Dirt Late Models, USRA Late Models, WISSOTA Modifieds | Results | | Cory Mahder (A Modifieds) | 1st | - | - | 25th |
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| 7/2/2021 | Mississippi Thunder Speedway - Fountain City, WI Karl Fenske Memorial Dirt Late Models, Hornets, USRA B-Mods, USRA Modifieds, USRA Late Models, USRA Hobby Stocks | Results | | Cory Mahder (USRA Modifieds) | 3rd | - | - | 9th |
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| 7/9/2021 | Red Cedar Speedway - Menomonie, WI Military Night: All Military Personnel Get in FREE with Military I.D. Hornets, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 5th | - | - | 7th |
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| 7/16/2021 | Red Cedar Speedway - Menomonie, WI Dunn County Humane Society Night Hornets, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 4th | - | - | 2nd |
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| 7/18/2021 | Red Cedar Speedway - Menomonie, WI World of Outlaws Late Models & $1,000 to Win Open Modifieds w/ Limited Late Models Dirt Super Late Models: World of Outlaws - Late Models A Modifieds, Dirt Limited Late Models | Results | | Cory Mahder (A Modifieds) | 2nd | - | - | 7th |
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| 7/30/2021 | Red Cedar Speedway - Menomonie, WI Steffes Street Stock Tour Event Hornets, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 3rd | - | - | 6th |
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| 7/31/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #12 / Midwest Mod $5,000 To Win A Modifieds, Midwest Modifieds, Super Stocks, USRA Late Models, WISSOTA Street Stock | Results | | Cory Mahder (A Modifieds) | 4th | - | - | 4th |
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| 8/13/2021 | Red Cedar Speedway - Menomonie, WI Structural Buildings WISSOTA Late Model Challenge Series WISSOTA Late Model: Wissota Late Model Challenge Series WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 1st | - | - | 15th (DNF) |
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| 8/14/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #13 / Heros Night A Modifieds, Midwest Modifieds, Super Stocks, USRA Late Models | Results | | Cory Mahder (A Modifieds) | 4th | - | - | 8th |
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| 8/20/2021 | Mississippi Thunder Speedway - Fountain City, WI Rumble by the River 40 Dirt Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks | Results | | Cory Mahder (USRA Modifieds) | 6th | - | - | 13th (DNF) |
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| 8/21/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #14 / Season Championship 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 | | Cory Mahder (A Modifieds) | 1st | - | - | 3rd |
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| 9/24/2021 | Red Cedar Speedway - Menomonie, WI 41st Annual Punky Manor Challenge of Champions Night #1 Heats WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 4th | - | - | - |
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| 9/25/2021 | Red Cedar Speedway - Menomonie, WI 41st Annual Punky Manor Challenge Of Champions Features & Hall of Fame Induction WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 4th | - | - | 8th |
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| 10/1/2021 | ABC Raceway - Ashland, WI Red Clay Classic A Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Super Stock | Results | | Cory Mahder (WISSOTA Modifieds) | 9th (DNF) | - | 13th (DNF) | - |
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