| | Heat | Dash | B Feature | A Feature |
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| 1/29/2021 | Screven Motor Speedway - Sylvania, GA $8,000 to win 410 Sprints - Winged: All Star Circuit of Champions A Modifieds: Southeastern Modified Series | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 11th |
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| 1/30/2021 | Screven Motor Speedway - Sylvania, GA $10,000 to win 410 Sprints - Winged: All Star Circuit of Champions A Modifieds: Southeastern Modified Series | Results | | Brent Marks (410 Sprints - Winged) | 8th | - | 3rd | 17th (DNF) |
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| 2/2/2021 | East Bay Raceway Park - Tampa, FL $6,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 4th | - | - | 9th |
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| 2/3/2021 | Volusia Speedway Park - De Leon Springs, FL DIRTcar Nationals $6,000 to win 410 Sprints - Winged: All Star Circuit of Champions DIRTcar UMP Modifieds | Results | | Brent Marks (410 Sprints - Winged) | 4th | 3rd | - | 5th |
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| 2/4/2021 | Volusia Speedway Park - De Leon Springs, FL DIRTcar Nationals $6,000 to win 410 Sprints - Winged: All Star Circuit of Champions DIRTcar UMP Modifieds | Results | | Brent Marks (410 Sprints - Winged) | 3rd | 5th | - | 12th |
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| 2/5/2021 | Volusia Speedway Park - De Leon Springs, FL 50th Annual DIRTcar Nationals - Night #4 (DIRTcar UMP Modifieds Gator Championship Night 1) 410 Sprints - Winged: World of Outlaws DIRTcar UMP Modifieds | Results | | Brent Marks (410 Sprints - Winged) | 2nd | 5th | - | 8th |
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| 2/7/2021 | Volusia Speedway Park - De Leon Springs, FL 50th Annual DIRTcar Nationals - Night #6 (DIRTcar UMP Modifieds Gator Championship Night 3) 410 Sprints - Winged: World of Outlaws DIRTcar UMP Modifieds | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 16th |
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| 3/5/2021 | Volusia Speedway Park - De Leon Springs, FL 410 Sprints - Winged: World of Outlaws DIRTcar UMP Modifieds | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 12th |
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| 3/6/2021 | East Bay Raceway Park - Tampa, FL 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 12th |
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| 3/12/2021 | Magnolia Motor Speedway - Columbus, MS 410 Sprints - Winged: World of Outlaws CRUSA Late Model Sportsman | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 15th |
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| 3/13/2021 | Revolution Park - Monroe, LA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 7th | - | 2nd | 17th |
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| 3/19/2021 | Cotton Bowl Speedway - Paige, TX 410 Sprints - Winged: World of Outlaws Factory Stocks | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 18th |
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| 3/20/2021 | Cotton Bowl Speedway - Paige, TX 410 Sprints - Winged: World of Outlaws IMCA Southern SportMod | Results | | Brent Marks (410 Sprints - Winged) | 2nd | 4th | - | 2nd |
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| 3/27/2021 | Lake Ozark Speedway - Eldon, MO 410 Sprints - Winged: World of Outlaws 305 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 7th | - | 2nd | 8th |
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| 4/3/2021 | Attica Raceway Park - Attica, OH Core and Main Spring Nationals $6,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 4th |
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| 4/6/2021 | Bridgeport Motorsports Park - Bridgeport, NJ | Results | | Brent Marks (410 Sprints - Winged) | 4th | 4th | - | 4th |
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| 4/10/2021 | Port Royal Speedway - Port Royal, PA National Open 360 Sprints - Non-Winged: USAC East Coast Sprint Cars 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 14th |
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| 4/15/2021 | Virginia Motor Speedway - Jamaica, VA $12,000 to win 410 Sprints - Winged: All Star Circuit of Champions DIRTcar UMP Modifieds | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 10th |
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| 4/16/2021 | Williams Grove Speedway - Mechanicsburg, PA The Tommy Hinnershitz Classic -$6,000 to win 410 Sprints - Winged: All Star Circuit of Champions 358 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 9th | - | 6th | 13th |
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| 4/17/2021 | Port Royal Speedway - Port Royal, PA Keith Kauffman Classic $10,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 20th |
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| 4/18/2021 | Bedford Speedway - Bedford, PA Johnny Grum Classic $6,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 4th | - | - | 10th |
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| 4/24/2021 | Port Royal Speedway - Port Royal, PA Port Royal Speedway 360 Sprints - Winged: United Racing Club 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 8th | - | 2nd | 19th |
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| 4/25/2021 | Selinsgrove Raceway Park - Sellinsgrove, PA | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 1st |
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| 4/25/2021 | Selinsgrove Speedway - Selinsgrove, PA Ray Tilley Classic 410 Sprints - Winged, Dirt Super Late Models | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 1st |
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| 5/1/2021 | Port Royal Speedway - Port Royal, PA 410 Sprints - Winged, Dirt Super Late Models | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 2nd |
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| 5/2/2021 | BAPS Motor Speedway - York Haven, PA Select Collision Kevin Gobrecht Classic ($5 off GA to ALL Fans Wearing a Kevin Gobrecht T-Shirt) 410 Sprints - Winged, Supermodifieds | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 1st |
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| 5/7/2021 | Eldora Speedway - Rossburg, OH 410 Sprints - Winged: World of Outlaws 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Brent Marks (410 Sprints - Winged) | 2nd | 3rd | - | 1st |
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| 5/8/2021 | Eldora Speedway - Rossburg, OH 410 Sprints - Winged: World of Outlaws 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 18th |
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| 5/12/2021 | Lincoln Speedway - Abbottstown, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 2nd |
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| 5/14/2021 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 2nd | 8th | - | 3rd |
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| 5/15/2021 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 11th |
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| 5/18/2021 | Bridgeport Motorsports Park - Bridgeport, NJ 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 2nd | 5th | - | 6th |
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| 5/21/2021 | Attica Raceway Park - Attica, OH 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 7th | - | 1st | 3rd |
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| 5/22/2021 | Sharon Speedway - Hartford, OH 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 6th |
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| 5/31/2021 | Port Royal Speedway - Port Royal, PA Bob Weikert Memorial $29,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 27th (DNF) |
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| 6/5/2021 | Granite City Motor Park - Sauk Rapids, MN 410 Sprints - Winged: World of Outlaws Winged A-Class, WISSOTA Midwest Mods | Results | | Brent Marks (410 Sprints - Winged) | 4th | - | - | 8th |
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| 6/11/2021 | Knoxville Raceway - Knoxville, IA 410 Sprints - Winged: World of Outlaws 360 Sprints - Winged, 305 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 4th | - | - | 11th |
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| 6/12/2021 | Knoxville Raceway - Knoxville, IA 410 Sprints - Winged: World of Outlaws 360 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 7th |
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| 6/17/2021 | 34 Raceway - West Burlington, IA 410 Sprints - Winged: World of Outlaws 305 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 6th | - | - | 12th |
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| 6/18/2021 | Dubuque Fairgrounds Speedway - Dubuque, IA 410 Sprints - Winged: World of Outlaws A Modifieds | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 6th |
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| 6/19/2021 | Beaver Dam Raceway - Beaver Dam, WI 410 Sprints - Winged: World of Outlaws Lightning Sprints: IRA Lightning Sprints Semi-Pro Legends | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 11th |
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| 6/20/2021 | Path Valley Speedway Park - Spring Run, PA | Results | | Brent Marks (410 Sprints - Winged) | - | - | - | 1st |
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| 6/25/2021 | Williams Grove Speedway - Mechanicsburg, PA PA Speedweek 410 Sprints - Winged, 358 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 8th |
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| 6/26/2021 | Lincoln Speedway - Abbottstown, PA PA Speedweek 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 1st |
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| 6/27/2021 | BAPS Motor Speedway - York Haven, PA AJ'S Truck & Trailer Center Pennsylvania Speedweek Presented by Eastern Caisson Corporation 410 Sprints - Winged, Sportsman Sprints | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 1st |
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| 6/28/2021 | Lincoln Speedway - Abbottstown, PA PA Speedweek 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 16th |
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| 6/29/2021 | Grandview Speedway - Bechtelsville, PA PA Speedweek 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 2nd |
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| 7/2/2021 | Williams Grove Speedway - Mechanicsburg, PA PA Speedweek 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 10th |
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| 7/5/2021 | Selinsgrove Speedway - Selinsgrove, PA PA Speedweek 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 1st |
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| 7/10/2021 | Sharon Speedway - Hartford, OH Lou Blaney Memorial $8,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | 1st | 6th |
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| 7/14/2021 | Eldora Speedway - Rossburg, OH 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 8th |
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| 7/15/2021 | Eldora Speedway - Rossburg, OH 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 10th (DNF) | - | - | - |
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| 7/17/2021 | Eldora Speedway - Rossburg, OH 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | 3rd | 11th |
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| 7/18/2021 | Eldora Speedway - Rossburg, OH The Knight Before 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 7th | - | 1st | 14th |
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| 7/23/2021 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 5th |
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| 7/24/2021 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 1st | 4th | - | 1st |
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| 7/31/2021 | Port Royal Speedway - Port Royal, PA 410 Sprints - Winged, Dirt Super Late Models | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 1st |
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| 8/8/2021 | Knoxville Raceway - Knoxville, IA 10th annual Capitani Classic presented by Great Southern Bank 410 Sprints - Winged, Winged Sprints | Results | | Brent Marks (410 Sprints - Winged) | 4th | - | 3rd | 15th |
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| 8/9/2021 | Southern Iowa Speedway - Oskaloosa, IA 410 Sprints - Winged: IRA Interstate Racing Association 305 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 4th | - | - | 12th |
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| 8/12/2021 | Knoxville Raceway - Knoxville, IA 410 Sprints - Winged: World of Outlaws 360 Sprints - Winged, Winged Sprints | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 3rd |
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| 8/14/2021 | Knoxville Raceway - Knoxville, IA 410 Sprints - Winged: World of Outlaws 360 Sprints - Winged, Winged Sprints | Results | | Brent Marks (410 Sprints - Winged) | - | - | - | 6th |
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| 8/26/2021 | Grandview Speedway - Bechtelsville, PA Thunder on the Hill $6,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 4th | - | - | 8th |
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| 8/27/2021 | Williams Grove Speedway - Mechanicsburg, PA Jack Gunn Memorial - Twin 20s $4,000 to win each feature 410 Sprints - Winged: All Star Circuit of Champions | Rain Out |
| 8/28/2021 | Lincoln Speedway - Abbottstown, PA Kramer Klash $7,300 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 3rd | 4th | - | 23rd (DNF) |
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| 8/29/2021 | BAPS Motor Speedway - York Haven, PA Johnny Mackison Clash $5,000 to win 410 Sprints - Winged: All Star Circuit of Champions 305 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 10th |
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| 9/3/2021 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged, 358 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 1st |
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| 9/4/2021 | Port Royal Speedway - Port Royal, PA 410 Sprints - Winged, Dirt Super Late Models | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 3rd |
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| 9/6/2021 | Port Royal Speedway - Port Royal, PA Labor Day Classic 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 22nd (DNF) |
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| 9/9/2021 | Port Royal Speedway - Port Royal, PA $8,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 1st | 3rd | - | 1st |
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| 9/10/2021 | Port Royal Speedway - Port Royal, PA Night Before the 50 $10,000 to win 410 Sprints - Winged: All Star Circuit of Champions Dirt Super Late Models | Results | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 10th |
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| 9/11/2021 | Port Royal Speedway - Port Royal, PA 54th annual Tuscarora 50 $54,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 5th |
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| 9/16/2021 | BAPS Motor Speedway - York Haven, PA Drydene Oil Greg Hodnett Foundation Dirt Classic Qualifier 410 Sprints - Winged, Generic 1 | Results | | Brent Marks (410 Sprints - Winged) | 2nd | - | - | 2nd |
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| 9/17/2021 | Williams Grove Speedway - Mechanicsburg, PA Dirt Classic Qualifier $7,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 3rd | 4th | - | 3rd |
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| 9/18/2021 | Lincoln Speedway - Abbottstown, PA Dirt Classic $20,000 to win 410 Sprints - Winged: All Star Circuit of Champions | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 20th (DNF) |
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| 9/24/2021 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged, 358 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | 2nd | 1st | - | 25th (DNF) |
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| 9/25/2021 | Selinsgrove Speedway - Selinsgrove, PA Jim Nace Memorial 39th annual National Open 410 Sprints - Winged | Results | | Brent Marks (410 Sprints - Winged) | - | - | - | 5th |
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| 10/1/2021 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 1st | 5th | - | 5th |
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| 10/2/2021 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 2nd | 1st | - | 15th |
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| 10/8/2021 | Port Royal Speedway - Port Royal, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 5th | - | - | 5th |
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| 10/9/2021 | Port Royal Speedway - Port Royal, PA 410 Sprints - Winged: World of Outlaws | Results | | Brent Marks (410 Sprints - Winged) | 1st | 3rd | - | 8th |
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| 10/10/2021 | Trail-Way Speedway - Hanover, PA 5th Annual Armin Hostetter Memorial (410 Sprint Cars) 410 Sprints - Winged, Pro Legends | Rain Out |
| 11/2/2021 | Cherokee Speedway - Gaffney, SC 410 Sprints - Winged, Dirt Super Late Models | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 1st |
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| 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 | | Brent Marks (410 Sprints - Winged) | 3rd | - | - | 6th |
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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 | | Brent Marks (410 Sprints - Winged) | 2nd | 4th | - | 1st |
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| 11/13/2021 | BAPS Motor Speedway - York Haven, PA Capitol Renegade Showdown Presented by FK Rod Ends ($1,000 to win Enduro 50's) 410 Sprints - Winged, Supermodifieds, Enduro, Dirt 6-cyl Stock Cars | Results | | Brent Marks (410 Sprints - Winged) | 1st | - | - | 1st |
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