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| 4/10/2021 | Oklahoma Sports Park - Ada, OK Sooner Sprint Series + Regular Racing Program 305 Sprints - Winged, B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 1st | - | - | 1st |
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| 5/1/2021 | Legit Speedway Park - West Plains, MO IMCA Modified Show-Me Showdown $2,000 to Win Dirt Super Late Models, Hobby Stocks, A Modifieds, Economy Late Models, Limited Sport Mod, Super Stocks | Results | | Mark Mullins (Super Stocks) | 3rd | - | - | 12th |
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| 5/8/2021 | Oklahoma Sports Park - Ada, OK Non-Winged Sprints: United Sprint League B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 1st | - | - | 1st |
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| 5/28/2021 | Legit Speedway Park - West Plains, MO Scrappin' 40's Night 1 IMCA Mod $750 to Win & Powri Super Stock $1,000 to Win A Modifieds, Economy Late Models, Limited Sport Mod, Super Stocks | Results | | Mark Mullins (Super Stocks) | 6th | - | - | 14th |
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| 5/29/2021 | Legit Speedway Park - West Plains, MO Dirt Late Models: Cash Money Dirt Late Model Series Hobby Stocks, A Modifieds, Super Stocks | Results | | Mark Mullins (Super Stocks) | 6th | - | 8th | 21st |
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| 6/19/2021 | Oklahoma Sports Park - Ada, OK Sooner Late Model Series + Regular Racing Program Dirt Super Late Models, B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 1st | - | - | 5th |
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| 7/17/2021 | Oklahoma Sports Park - Ada, OK Sooner Sprint Car Series + Regular Racing Program 305 Sprints - Winged, B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 2nd | - | - | 1st |
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| 7/31/2021 | Oklahoma Sports Park - Ada, OK Wingless Summer Sizzler Non-Winged Sprints: United Sprint League B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 1st | - | - | 3rd |
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| 8/14/2021 | Oklahoma Sports Park - Ada, OK Late Models + Regular Racing Program Dirt Super Late Models, B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 2nd | - | - | 1st | | Mark Mullins (Asphalt Sport Mods) | 5th | - | - | 5th |
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| 8/28/2021 | Oklahoma Sports Park - Ada, OK Fan Appreciation + Regular Racing Program B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 2nd | - | - | 1st |
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| 9/11/2021 | Oklahoma Sports Park - Ada, OK A Modifieds: TOMS - Touring Outlaw Modified Series B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 4th (DNF) | - | - | 2nd |
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| 9/18/2021 | Oklahoma Sports Park - Ada, OK Regular Racing Program (Last Points Night) B Modifieds, Street Stocks, Asphalt Sport Mods, Limited Sport Mod, Pure Stock | Results | | Mark Mullins (Street Stocks) | 2nd | - | - | 1st |
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| 9/25/2021 | Monett Motor Speedway - Monett, MO Fall Weekly Race 3 + Late Model DIRTcar Late Models, Stock Cars, Midwest Modifieds, B Modifieds, Street Stocks, Pure Stock | Results | | Mark Mullins (Street Stocks) | 4th | - | - | 6th |
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| 10/9/2021 | Oklahoma Sports Park - Ada, OK $1000 to win EMod & Pure Stock B Modifieds, Pure Stock | Results | | Mark Mullins (B Modifieds) | 5th (DNF) | - | - | 8th |
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| 10/29/2021 | Southern Oklahoma Speedway - Ardmore, OK 17 Annual Jordan Page Winter Nationals - Night 1 Hobby Stocks, Stock Cars, 600cc Modifieds, Limited Sport Mod, IMCA Modified | Results | | Mark Mullins (600cc Modifieds) | 6th | - | - | - |
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| 10/30/2021 | Southern Oklahoma Speedway - Ardmore, OK 17th Annual Jordan Page Winter Nationals - Night 2 Hobby Stocks, Stock Cars, 600cc Modifieds, Limited Sport Mod, IMCA Modified | Results | | Mark Mullins (600cc Modifieds) | - | - | 4th | 14th |
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