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| 4/3/2021 | Lincoln Park Speedway - Putnamville, IN Indiana Open Wheel Racing Fest with Fireworks DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 7th | - | 6th | - |
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| 4/10/2021 | Lincoln Park Speedway - Putnamville, IN Sprints, Modifieds, Super Stocks, and Bombers DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 5th | - | - | 17th |
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| 4/17/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing 305 Sprints - Winged, DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 3rd | - | - | 8th |
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| 4/24/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing plus Midget Cup Midgets, DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 5th | - | - | 13th |
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| 4/30/2021 | Bloomington Speedway - Bloomington, IN DIRTcar UMP Modifieds, 410 Sprints - Non-Winged, Super Stocks, Pure Stock | Results | | Katie Grigsby (Pure Stock) | 4th | - | - | 3rd |
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| 5/1/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing plus MMSA Lightning Sprints: Midwest Mini Sprint Association DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 7th | - | 1st | 10th |
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| 5/8/2021 | Lincoln Park Speedway - Putnamville, IN Little Feet Bike Challenge #1 DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 7th | - | - | 10th |
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| 5/15/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 4th | - | - | 13th |
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| 5/21/2021 | Paragon Speedway - Paragon, IN Bomber Spring Fling DIRTcar UMP Modifieds, Stock Cars, 410 Sprints - Non-Winged, Hornets | Results | | Katie Grigsby (Stock Cars) | DNS | - | - | DNS |
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| 5/22/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 2nd | - | - | 11th |
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| 5/29/2021 | Lincoln Park Speedway - Putnamville, IN MSCS SPRINTS $2,500 to win 410 Sprints - Non-Winged: Midwest Sprint Car Series MSCS DIRTcar UMP Modifieds, Factory Stocks, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 6th | - | - | 13th |
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| 6/5/2021 | Lincoln Park Speedway - Putnamville, IN Fan Rememberance Race DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks, Dirt Crate Late Models | Results | | Katie Grigsby (Factory Stocks) | 6th | - | - | 7th |
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| 6/12/2021 | Lincoln Park Speedway - Putnamville, IN Little Feet Bike Challenge #2 DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 6th | - | 2nd | 13th |
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| 6/19/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing plus 305 winged sprints 305 Sprints - Winged, DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 7th | - | - | 11th |
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| 6/26/2021 | Lincoln Park Speedway - Putnamville, IN FIREWORKS SPECTACULAR DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 2nd | - | - | 8th |
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| 7/2/2021 | Lincoln Park Speedway - Putnamville, IN Bill Gardner Sprintacular Night 1 with MSCS/USAC Sprints 410 Sprints - Non-Winged: USAC National Sprint Cars with Midwest Sprint Car Series MSCS DIRTcar UMP Modifieds, Factory Stocks, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 1st | - | - | 5th |
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| 7/17/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 4th | - | - | 9th |
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| 7/24/2021 | Lincoln Park Speedway - Putnamville, IN Baily Hicks Memorial Lightning Sprints: Midwest Mini Sprint Association 305 Sprints - Winged, DIRTcar UMP Modifieds, Factory Stocks, Hornets, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 2nd | - | - | 21st |
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| 8/7/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Hornets, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | DNS | - | - | 17th |
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| 8/13/2021 | Paragon Speedway - Paragon, IN Fan Appreciation Night DIRTcar UMP Modifieds, Stock Cars, 410 Sprints - Non-Winged, Hornets, Super Stocks | Results | | Katie Grigsby (Stock Cars) | 5th | - | - | 6th |
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| 8/14/2021 | Lincoln Park Speedway - Putnamville, IN Little Feet Bike Challenge #3 DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 4th | - | - | 7th |
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| 8/20/2021 | Bloomington Speedway - Bloomington, IN FAN Appreciation DIRTcar UMP Modifieds, 410 Sprints - Non-Winged, Hornets, Super Stocks, Pure Stock | Results | | Katie Grigsby (Pure Stock) | 2nd | - | - | 3rd |
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| 8/21/2021 | Lincoln Park Speedway - Putnamville, IN The Return to Putnamville - MSCS Sprints 410 Sprints - Non-Winged: Midwest Sprint Car Series MSCS Lightning Sprints: Midwest Mini Sprint Association DIRTcar UMP Modifieds, Factory Stocks, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 6th | - | - | 7th |
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| 8/22/2021 | Paragon Speedway - Paragon, IN USAC SPRINTS RETURN TO PARAGON Stock Cars, 410 Sprints - Non-Winged | Results | | Katie Grigsby (Stock Cars) | 3rd | - | - | 14th |
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| 8/27/2021 | Paragon Speedway - Paragon, IN Friday Night Racing DIRTcar UMP Modifieds, Stock Cars, 410 Sprints - Non-Winged, Hornets, Super Stocks | Results | | Katie Grigsby (Stock Cars) | 3rd | - | - | 6th |
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| 8/28/2021 | Lincoln Park Speedway - Putnamville, IN Buckeye Bob 33 - Gary Rickets Memorial DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 8th | - | - | 16th |
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| 9/10/2021 | Bloomington Speedway - Bloomington, IN Friday Night Racing 410 Sprints - Non-Winged, Hornets, Pure Stock, IMCA RaceSaver Sprint Car | Results | | Katie Grigsby (Pure Stock) | 4th | - | - | 11th |
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| 9/11/2021 | Lincoln Park Speedway - Putnamville, IN Patriot 100 DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 4th | - | - | 10th |
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| 9/18/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing 305 Sprints - Winged, DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Rain Out |
| 9/25/2021 | Lincoln Park Speedway - Putnamville, IN Rescheduled King of Nonwing and Fireworks DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Katie Grigsby (Factory Stocks) | 5th | - | - | 10th |
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