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| 3/10/2021 | Humboldt Speedway - Humboldt, KS Battle at the Bullring Practice Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds, Sport Compact, USRA B-Mods, USRA Modifieds | Rain Out |
| 3/24/2021 | Humboldt Speedway - Humboldt, KS KOA and Battle Practice A Modifieds: USMTS - United States Modified Touring Series B Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Marcus Dunbar (USRA B-Mods) | - | - | - | - |
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| 3/25/2021 | Humboldt Speedway - Humboldt, KS King Of America and Battle at the Bullring Night 1 A Modifieds: USMTS - United States Modified Touring Series B Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Marcus Dunbar (USRA B-Mods) | 1st | - | - | - |
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| 3/26/2021 | Humboldt Speedway - Humboldt, KS King Of America $5,000 to win + Battle Qualifying A Modifieds: USMTS - United States Modified Touring Series B Modifieds, USRA B-Mods, USRA Stock Cars | Results | | Marcus Dunbar (USRA B-Mods) | 2nd | - | - | 20th |
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| 3/27/2021 | Humboldt Speedway - Humboldt, KS King Of America $20,000 to win, Battle at the Bullring $10,00 to win A Modifieds: USMTS - United States Modified Touring Series B Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Marcus Dunbar (USRA B-Mods) | - | - | - | 17th |
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| 4/30/2021 | Sk Speedway - Unity, WI Kim Parson's Memorial Trophy Tour and Super Stock Special Hornets, Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 4th | - | - | 2nd |
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| 5/8/2021 | Rice Lake Speedway - Rice Lake, WI Five Class Program WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 1st | - | - | 2nd |
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| 5/22/2021 | Ogilvie Raceway - Ogilvie, MN Saturday Night Shootout WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 2nd | - | - | 8th |
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| 5/23/2021 | Granite City Motor Park - Sauk Rapids, MN Regular Night with MWM Special - WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 1st | - | - | 3rd |
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| 5/29/2021 | ABC Raceway - Ashland, WI Ashland Ford Chrysler Weekend Deal presented by the Lakeshore Cafe & Zielies Tree Service A Modifieds, Dirt 6-cyl Stock Cars, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 1st | - | - | 13th |
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| 6/5/2021 | ABC Raceway - Ashland, WI Little Caesar's Pizza Meet the Driver's Night Dirt 6-cyl Stock Cars, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 3rd | - | - | 15th (DNF) |
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| 6/12/2021 | ABC Raceway - Ashland, WI RV Mod Series Presented by NAPA Auto of Ashland & Washburn A Modifieds, Dirt 6-cyl Stock Cars, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 2nd | - | - | 1st |
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| 6/19/2021 | ABC Raceway - Ashland, WI Ashland Area Chamber of Commerce AFCO Race of Champions Dirt 6-cyl Stock Cars, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 1st | - | - | 17th (DNF) |
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| 7/10/2021 | ABC Raceway - Ashland, WI Kid's Bike Races presented by Chicago Iron & Supplies Dirt 6-cyl Stock Cars, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 4th | - | - | 18th (DNF) |
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| 7/24/2021 | ABC Raceway - Ashland, WI Northern Clearing Inc Racing for a Reason with the Northern Renegade Sprints 360 Sprints - Non-Winged, Dirt 6-cyl Stock Cars, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 1st | - | - | 1st |
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| 7/29/2021 | ABC Raceway - Ashland, WI 444 Memorial For Tanner Byholm WISSOTA Late Model: Wissota Late Model Challenge Series A Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 3rd | - | - | 8th |
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| 8/21/2021 | ABC Raceway - Ashland, WI Safari Bar Hornet's Nest 25 presented by the ABC Sportsmen Club Dirt 6-cyl Stock Cars, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 2nd | - | - | 3rd |
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| 8/22/2021 | Sheyenne Speedway - Lisbon, ND $5,000 REBEL MW MOD TOUR FINALE Pro Legends, Sport Compact, Pure Stock, WISSOTA Midwest Mods, WISSOTA Street Stock | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 4th | - | 8th | - |
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| 9/3/2021 | Grand Rapids Speedway - Grand Rapids, MN Structural Buildings WISSOTA Late Model Challenge Series WISSOTA Late Model: Wissota Late Model Challenge Series WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Super Stock | Rain Out |
| 9/4/2021 | Hibbing Raceway - Hibbing, MN Structural Buildings WISSOTA Late Model Challenge Series WISSOTA Late Model: Wissota Late Model Challenge Series WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | 5th | - | 2nd | 15th |
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| 9/5/2021 | Hibbing Raceway - Hibbing, MN Structural Buildings WISSOTA Late Model Challenge Series - Championship Night WISSOTA Late Model: Wissota Late Model Challenge Series WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Marcus Dunbar (WISSOTA Midwest Mods) | - | - | - | - |
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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 | | Marcus Dunbar (WISSOTA Midwest Mods) | 3rd | - | - | - |
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