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| 5/1/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Opening Night DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 5th | - | - | 19th (DNF) |
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| 5/8/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 7th | - | - | - |
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| 5/22/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 7th | - | 3rd | 9th |
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| 5/29/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing, Earl J Hubert Memorial Street Stock Special DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, Street Stocks, Pro Late Model | Results | | Don Hilleary (Street Stocks) | 6th | - | 4th | - |
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| 6/5/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing - Fan Appreciation Night DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 5th | - | - | 9th |
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| 6/12/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing, Pappy and Bob Allen Memorial DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks, Dirt 4 cyl Modifieds | Results | | Don Hilleary (Street Stocks) | - | - | - | - |
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| 7/3/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing plus Fireworks. Emergency First Responder Night DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 5th | - | - | 8th |
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| 7/17/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing, Eden/Piercy Memorial Sportsman Special DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 2nd | - | - | 4th |
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| 8/7/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 2nd | - | - | 7th |
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| 8/14/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing plus Vintage Racing DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks, Vintage Full Body Stock Cars | Results | | Don Hilleary (Street Stocks) | 5th | - | - | 7th |
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| 8/21/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Weekly Racing Fair Night DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 9th | - | - | 11th |
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| 8/28/2021 | Fairbury Speedway - Fairbury, IL FALS Cup Championship Night of Racing DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Don Hilleary (Street Stocks) | 4th | - | - | 17th (DNF) |
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