| | Heat | Dash | B Feature | A Feature |
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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 | | Ron Mahder (Super Stocks) | 4th | - | - | 15th (DNF) |
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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 | | Ron Mahder (WISSOTA Super Stock) | 5th | - | - | 25th (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 | | Ron Mahder (Super Stocks) | 3rd | - | - | 3rd |
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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 | | Ron Mahder (Super Stocks) | 1st | - | - | 16th (DNF) |
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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 | | Ron Mahder (WISSOTA Super Stock) | 1st | - | - | 2nd |
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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 | | Ron Mahder (WISSOTA Super Stock) | 6th | - | - | 13th (DNF) |
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| 7/17/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #10 / Pro Stock $5,000 To Win 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series 305 Sprints - Non-Winged, 600cc Modifieds, Super Stocks, USRA Late Models | Results | | Ron Mahder (Super Stocks) | 3rd | - | 15th (DNF) | - |
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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 | | Ron Mahder (WISSOTA Super Stock) | 1st | - | - | 14th |
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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 | | Ron Mahder (Super Stocks) | 3rd | - | - | 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 | | Ron Mahder (WISSOTA Super Stock) | 2nd | - | - | 3rd |
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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 | | Ron Mahder (Super Stocks) | 2nd | - | - | 17th (DNF) |
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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 | | Ron Mahder (USRA Modifieds) | 6th | - | - | 14th (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 | | Ron Mahder (Super Stocks) | 3rd | - | - | 2nd |
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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 | | Ron Mahder (WISSOTA Super Stock) | 2nd | - | - | - |
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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 | | Ron Mahder (WISSOTA Super Stock) | 2nd | - | - | 24th (DNF) |
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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 | | Ron Mahder (WISSOTA Super Stock) | 2nd | - | - | 10th |
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