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| 2/9/2021 | Volusia Speedway Park - De Leon Springs, FL 50th Annual DIRTcar Nationals - Night #8 DIRTcar Big Block Modifieds: Super DIRTCar Series DIRTcar Pro Late Models | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | 2nd | - | - | 5th |
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| 2/10/2021 | Volusia Speedway Park - De Leon Springs, FL 50th Annual DIRTcar Nationals - Night #9 Dirt Super Late Models: World of Outlaws - Late Models DIRTcar Big Block Modifieds: Super DIRTCar Series | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | 1st | - | - | 11th |
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| 2/11/2021 | Volusia Speedway Park - De Leon Springs, FL 50th Annual DIRTcar Nationals - Night #10 Dirt Super Late Models: World of Outlaws - Late Models DIRTcar Big Block Modifieds: Super DIRTCar Series | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | 1st | - | - | 4th |
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| 2/12/2021 | Volusia Speedway Park - De Leon Springs, FL 50th Annual DIRTcar Nationals - Night #11 Dirt Super Late Models: World of Outlaws - Late Models DIRTcar Big Block Modifieds: Super DIRTCar Series | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | 4th | - | - | 8th |
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| 5/14/2021 | Ransomville Speedway - Ransomville, NY Kulesza Memorial Mini Stock Race and Full Card of Racing DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 2nd |
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| 5/21/2021 | Ransomville Speedway - Ransomville, NY SANY presents a Full Card of Racing DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 3rd |
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| 6/4/2021 | Ransomville Speedway - Ransomville, NY Moley Magnetics presents a Full Card of Racing DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 1st |
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| 6/11/2021 | Ransomville Speedway - Ransomville, NY Clark Rigging and Rental and Behm Automotive presents Kids Poster Contest! DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 6th |
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| 6/18/2021 | Ransomville Speedway - Ransomville, NY Triple T Towing and Bailey Brothers, and 87Buf presents Demolition Derby and Full Card of Racing DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 4th |
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| 7/2/2021 | Ransomville Speedway - Ransomville, NY UBreakIFix, Hebeler Sales & Service, Beyer Boys, and Hy-Tech Concrete present Firework Display! DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 3rd |
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| 7/3/2021 | Merrittville Speedway - Thorold, ON Bobcat of Hamilton Weekly Series Factory Stocks, Asphalt Mini Stocks, Stock Cars, Sportsmans, Street Stocks, Dwarf | Results | | Mat Williamson (Stock Cars) | 2nd | - | - | 1st |
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| 7/9/2021 | Ransomville Speedway - Ransomville, NY VandeMark Chemical presents the RUSH LM and Richard Wilkinson Memorial DIRTcar Sportsmans, Factory Stocks, A Modifieds, Street Stocks, Dirt Crate Late Models | Results | | Mat Williamson (A Modifieds) | - | - | - | 1st |
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| 7/16/2021 | Ransomville Speedway - Ransomville, NY Labor Night at the Races presented by NOLC and BlueCross BlueShield. Kids Rides and Full Card! DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 2nd |
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| 7/23/2021 | Ransomville Speedway - Ransomville, NY Jeffery Machine presents the Sid and Carol Jeffery Memorial Race for Modifieds and Sportsman. DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 1st |
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| 7/24/2021 | Merrittville Speedway - Thorold, ON Bobcat of Hamilton Weekly Series Factory Stocks, Asphalt Mini Stocks, Stock Cars, Sportsmans, Street Stocks, Dwarf | Results | | Mat Williamson (Stock Cars) | 1st | - | - | 2nd |
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| 7/30/2021 | Humberstone Speedway - Port Colborne, ON All Canadian Weekend 360 Sprints - Winged: Knights of Thunder 360 Sprint Car Series Winged Crate Sprints: Action Sprint Tour | Results | | Mat Williamson (360 Sprints - Winged) | 5th | - | - | 10th |
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| 7/31/2021 | Merrittville Speedway - Thorold, ON Bobcat of Hamilton Weekly Series PLUS autograph night Factory Stocks, Asphalt Mini Stocks, Stock Cars, Sportsmans, Street Stocks, Dwarf | Results | | Mat Williamson (Stock Cars) | 2nd | - | - | 4th |
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| 8/1/2021 | Ohsweken Speedway - Ohsweken, ON All Canadian Weekend-Humberstone Speedway Asphalt Mini Stocks, Street Stocks, DIRTcar 358 Modifieds, DIRTcar Sportsman Modifieds | Postponed |
| 8/2/2021 | Merrittville Speedway - Thorold, ON 358 Modified, Sportsman $1000 to win, Hoosier and 4 cylinder Asphalt Mini Stocks, Stock Cars, Sportsmans, Street Stocks | Results | | Mat Williamson (Stock Cars) | 3rd | - | - | 1st |
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| 8/6/2021 | Ransomville Speedway - Ransomville, NY Scholtisek $2000 to win Mod Race and $500 Mini Stock Race DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 1st |
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| 8/7/2021 | Merrittville Speedway - Thorold, ON Bobcat of Hamilton Weekly Series Factory Stocks, Asphalt Mini Stocks, Stock Cars, Sportsmans, Street Stocks, Dwarf | Results | | Mat Williamson (Stock Cars) | 6th | - | - | 17th |
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| 8/8/2021 | Ohsweken Speedway - Ohsweken, ON Asphalt Mini Stocks, Street Stocks, DIRTcar 358 Modifieds, DIRTcar Sportsman Modifieds | Results | | Mat Williamson (DIRTcar 358 Modifieds) | 2nd | - | - | 3rd |
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| 8/13/2021 | Ransomville Speedway - Ransomville, NY Sean Letts Memorial Sportsman DIRTcar Trail race, Susice Memorial SS DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 3rd |
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| 8/14/2021 | Merrittville Speedway - Thorold, ON Winged Crate Sprints: Action Sprint Tour Factory Stocks, Asphalt Mini Stocks, Stock Cars, Street Stocks, Dwarf | Results | | Mat Williamson (Stock Cars) | 3rd | - | - | 18th |
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| 8/20/2021 | Ransomville Speedway - Ransomville, NY Crate Late Models and Easter Night/Human Foot Races DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Dirt Crate Late Models | Results | | Mat Williamson (A Modifieds) | - | - | - | 1st |
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| 8/21/2021 | Merrittville Speedway - Thorold, ON Nostalgia Night 2021 Asphalt Mini Stocks, Stock Cars, Sportsmans | Results | | Mat Williamson (Stock Cars) | 1st | - | - | 1st |
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| 8/27/2021 | Ransomville Speedway - Ransomville, NY Firth Jewelers, Sunset Bar and Grill and Sevenson present a Full Card of Racing DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 1st |
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| 8/28/2021 | Merrittville Speedway - Thorold, ON Bobcat of Hamilton Weekly Series PLUS Family autograph night Factory Stocks, Asphalt Mini Stocks, Stock Cars, Sportsmans, Street Stocks, Dwarf | Results | | Mat Williamson (Stock Cars) | 1st | - | - | 1st |
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| 8/29/2021 | Ohsweken Speedway - Ohsweken, ON Pete Cosco Memorial-Humberstone Speedway Asphalt Mini Stocks, Street Stocks, Dirt Late Models, DIRTcar 358 Modifieds, DIRTcar Sportsman Modifieds | Results | | Mat Williamson (DIRTcar 358 Modifieds) | 1st | - | - | 4th |
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| 9/3/2021 | Ransomville Speedway - Ransomville, NY Hy-Tech Concrete/Krown presents 358, Spt, Nov, and SS Championships, Mini Stocks plus Demo Derby! DIRTcar Sportsmans, Factory Stocks, Sportsmans, A Modifieds, Street Stocks | Results | | Mat Williamson (A Modifieds) | - | - | - | 4th |
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| 9/17/2021 | Ohsweken Speedway - Ohsweken, ON 360 Sprints - Winged: Knights of Thunder 360 Sprint Car Series Winged Crate Sprints: Action Sprint Tour | Results | | Mat Williamson (360 Sprints - Winged) | 5th | - | - | 10th |
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| 9/19/2021 | Ohsweken Speedway - Ohsweken, ON Humberstone Speedway Asphalt Mini Stocks, Street Stocks, DIRTcar 358 Modifieds, DIRTcar Sportsman Modifieds, Mod Lites | Results | | Mat Williamson (DIRTcar 358 Modifieds) | 1st | - | - | 1st |
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| 10/6/2021 | Oswego Speedway - Oswego, NY DIRTcar Big Block Modifieds: Super DIRTCar Series DIRTcar 358 Modifieds, DIRTcar Sportsman Modifieds, DIRTcar Pro Stock | Rain Out |
| 10/6/2021 | Weedsport Speedway - Weedsport, NY Super DIRT Week Kick Off Party DIRTcar 358 Modifieds, DIRTcar Sportsman Modifieds | Results | | Mat Williamson (DIRTcar 358 Modifieds) | 2nd | - | - | 1st |
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| 10/7/2021 | Oswego Speedway - Oswego, NY DIRTcar Big Block Modifieds: Super DIRTCar Series DIRTcar 358 Modifieds | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | - | - | - | - | | Mat Williamson (DIRTcar 358 Modifieds) | - | - | - | - |
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| 10/8/2021 | Oswego Speedway - Oswego, NY DIRTcar Big Block Modifieds: Super DIRTCar Series DIRTcar 358 Modifieds, DIRTcar Sportsman Modifieds, DIRTcar Pro Stock | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | 2nd | - | - | - | | Mat Williamson (DIRTcar 358 Modifieds) | 2nd | - | - | - |
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| 10/9/2021 | Oswego Speedway - Oswego, NY DIRTcar Big Block Modifieds: Super DIRTCar Series DIRTcar 358 Modifieds, DIRTcar Sportsman Modifieds, DIRTcar Pro Stock | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | 2nd | - | - | 1st | | Mat Williamson (DIRTcar 358 Modifieds) | 2nd | - | - | 2nd |
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| 11/4/2021 | The Dirt Track at Charlotte - Concord, NC 410 Sprints - Winged: World of Outlaws Dirt Super Late Models: World of Outlaws - Late Models DIRTcar Big Block Modifieds: Super DIRTCar Series | Postponed |
| 11/5/2021 | The Dirt Track at Charlotte - Concord, NC 410 Sprints - Winged: World of Outlaws Dirt Super Late Models: World of Outlaws - Late Models DIRTcar Big Block Modifieds: Super DIRTCar Series | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | 2nd | - | - | 3rd |
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| 11/6/2021 | The Dirt Track at Charlotte - Concord, NC 410 Sprints - Winged: World of Outlaws Dirt Super Late Models: World of Outlaws - Late Models DIRTcar Big Block Modifieds: Super DIRTCar Series | Results | | Mat Williamson (DIRTcar Big Block Modifieds) | 1st | - | - | 5th |
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