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| 5/22/2020 | Mississippi Thunder Speedway - Fountain City, WI USMTS Spring Shootout and Rumble by the River 40 Presented by Coca-Cola A Modifieds: USMTS - United States Modified Touring Series Dirt Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks | Results | | Chad Mahder (Dirt Late Models) | 1st | - | - | 21st (DNF) |
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| 5/30/2020 | Cedar Lake Speedway - New Richmond, WI NASCAR Dash Race #5 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks, USRA Modifieds | Results | | Chad Mahder (Dirt Late Models) | 1st | - | - | 8th |
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| 6/6/2020 | Rice Lake Speedway - Rice Lake, WI WISSOTA Late Models plus Supers, Streets, MWM, and Pures no Mods DIRTcar UMP Modifieds, WISSOTA Midwest Mods, WISSOTA Late Model, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Chad Mahder (WISSOTA Late Model) | 1st | - | - | 2nd |
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| 6/11/2020 | Cedar Lake Speedway - New Richmond, WI MASTERS Day 1 A Modifieds: USMTS - United States Modified Touring Series Dirt Late Models, USRA Modifieds, USRA Late Models, IMCA Modified | Results | | Chad Mahder (Dirt Late Models) | 4th | - | - | 9th |
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| 6/12/2020 | Cedar Lake Speedway - New Richmond, WI MASTERS Day 2 A Modifieds: USMTS - United States Modified Touring Series Dirt Late Models, USRA Modifieds, USRA Late Models, IMCA Modified | Results | | Chad Mahder (Dirt Late Models) | 2nd | - | - | 24th |
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| 6/13/2020 | Cedar Lake Speedway - New Richmond, WI Masters Day 3 A Modifieds: USMTS - United States Modified Touring Series Dirt Late Models, USRA Modifieds, USRA Late Models, IMCA Modified | Results | | Chad Mahder (Dirt Late Models) | 7th | - | 3rd | 23rd (DNF) |
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| 7/2/2020 | Mississippi Thunder Speedway - Fountain City, WI Dirt Late Models, USRA B-Mods, USRA Modifieds | Results | | Chad Mahder (Dirt Late Models) | 9th (DNF) | - | DNS | - |
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| 7/14/2020 | Gondik Law Speedway - Superior, WI World of Outlaws Dirt Super Late Models: World of Outlaws - Late Models WISSOTA Midwest Mods, WISSOTA Hornet | Results | | Chad Mahder (Dirt Super Late Models) | 3rd | - | - | 6th |
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| 7/18/2020 | Red River Valley Speedway - West Fargo, ND World of Outlaw Late Models Dirt Super Late Models: World of Outlaws - Late Models Sprint Cars, Stock Cars, B Modifieds, Dirt Late Models | Results | | Chad Mahder (Dirt Super Late Models) | 7th | - | 4th | 15th |
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| 7/19/2020 | River Cities Speedway - Grand Forks, ND Dirt Super Late Models: World of Outlaws - Late Models B Modifieds | Results | | Chad Mahder (Dirt Super Late Models) | 5th | - | - | 11th |
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| 8/1/2020 | Rice Lake Speedway - Rice Lake, WI Structural Buildings WISSOTA Late Model Challenge Series DIRTcar UMP Modifieds, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Pure Stock | Results | | Chad Mahder (WISSOTA Late Model) | 2nd | - | - | 9th |
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| 8/6/2020 | Cedar Lake Speedway - New Richmond, WI USA Nationals Dirt Super Late Models: World of Outlaws - Late Models USRA Late Models | Results | | Chad Mahder (Dirt Super Late Models) | 6th | - | 12th (DNF) | - |
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| 8/7/2020 | Cedar Lake Speedway - New Richmond, WI USA Nationals Dirt Super Late Models: World of Outlaws - Late Models DIRTcar UMP Modifieds, Dirt Late Models, USRA Modifieds | Results | | Chad Mahder (Dirt Super Late Models) | 3rd | - | - | - |
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| 8/8/2020 | Cedar Lake Speedway - New Richmond, WI USA Nationals Dirt Super Late Models: World of Outlaws - Late Models Dirt Late Models, USRA Modifieds | Results | | Chad Mahder (Dirt Super Late Models) | - | - | 1st | 24th (DNF) |
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| 8/21/2020 | Mississippi Thunder Speedway - Fountain City, WI Dairyland Showdown Presented by Hurco/Stone Machinery Dirt Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks | Results | | Chad Mahder (Dirt Late Models) | 3rd | - | - | - |
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| 8/22/2020 | Cedar Lake Speedway - New Richmond, WI NASCAR Dash Race #14 & Season Championship 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series DIRTcar UMP Modifieds, A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks, USRA Modifieds, USRA Late Models | Results | | Chad Mahder (Dirt Late Models) | 2nd | - | - | 9th |
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| 8/28/2020 | Mississippi Thunder Speedway - Fountain City, WI 12th Annual Season Championship Night Dirt Late Models, Hornets, USRA B-Mods, USRA Modifieds, USRA Late Models, USRA Hobby Stocks | Results | | Chad Mahder (Dirt Late Models) | 5th | - | - | 11th |
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| 9/3/2020 | ABC Raceway - Ashland, WI Prelude to the Clay USRA Modifieds, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Super Stock | Results | | Chad Mahder (WISSOTA Late Model) | 6th (DNF) | - | - | 13th |
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| 9/4/2020 | Grand Rapids Speedway - Grand Rapids, MN Structural Buildings WISSOTA Late Model Challenge Series USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Pure Stock, WISSOTA Super Stock | Results | | Chad Mahder (WISSOTA Late Model) | 1st | - | - | 13th |
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| 9/10/2020 | River Cities Speedway - Grand Forks, ND Prelude to the Johnny - NLRA Late Model Tour Championship B Modifieds, Dirt Late Models, WISSOTA Midwest Mods, WISSOTA Late Model, WISSOTA Street Stock | Results | | Chad Mahder (WISSOTA Late Model) | 2nd | - | - | 7th |
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| 9/11/2020 | River Cities Speedway - Grand Forks, ND John Seitz Memorial Night 1 - Blazin' Challenge NOSA Sprints 410 Sprints - Winged, B Modifieds, Dirt Late Models, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock | Results | | Chad Mahder (WISSOTA Late Model) | 6th (DNF) | 2nd | 2nd | 6th |
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| 9/25/2020 | Cedar Lake Speedway - New Richmond, WI Fall Frenzy Day 1 A Modifieds, Midwest Modifieds, Dirt Late Models, Super Stocks, USRA Late Models | Results | | Chad Mahder (Dirt Late Models) | 3rd | - | - | 10th |
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| 9/26/2020 | Cedar Lake Speedway - New Richmond, WI Fall Frenzy Day 2 A Modifieds, Midwest Modifieds, Dirt Late Models, Super Stocks, Pure Stock, USRA Late Models | Results | | Chad Mahder (Dirt Late Models) | - | - | - | - |
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