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| 4/24/2021 | Rapid Speedway - Rock Rapids, IA Test N Tune 360 Sprints - Winged, DIRTcar Late Models, DIRTcar Sportsmans, Economy Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, IMCA RaceSaver Sprint Car | Results | | Alex Wiertzema (USRA B-Mods) | - | - | - | - |
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| 4/30/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + 305 Sprints DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, IMCA RaceSaver Sprint Car | Results | | Alex Wiertzema (USRA B-Mods) | 4th | - | - | 17th |
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| 5/7/2021 | Rapid Speedway - Rock Rapids, IA Rapid Speedway - WEST Dirt Super Late Models: SLMR Late Model Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 7th (DNF) | - | 9th | - |
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| 5/21/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + 360 Sprints 360 Sprints - Winged, DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 6th | - | - | 5th |
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| 5/28/2021 | Rapid Speedway - Rock Rapids, IA 13th Annual USMTS Rapid Rumble A Modifieds: USMTS - United States Modified Touring Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 6th | - | 9th (DNF) | - |
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| 6/4/2021 | Rapid Speedway - Rock Rapids, IA Mark Lloyd Memorial DIRTcar Late Models, DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 7th (DNF) | - | - | 14th |
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| 6/5/2021 | I-90 Speedway - Hartford, SD CCL Labels Night: Paramount Racing Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Alex Wiertzema (USRA B-Mods) | 7th (DNF) | - | 5th | - |
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| 6/11/2021 | Rapid Speedway - Rock Rapids, IA $1,500 to win at Rapid Speedway Dirt Late Models: Tri-State Late Models DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 5th (DNF) | - | - | 16th (DNF) |
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| 6/18/2021 | Rapid Speedway - Rock Rapids, IA MSTS at Rapid Speedway with Power Series 360 Sprints - Winged: Midwest Power Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 7th | - | - | 17th (DNF) |
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| 6/25/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + A-Mod Special (Kids with Cancer Night) DIRTcar Sportsmans, A Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (A Modifieds) | 5th | - | - | 12th | | Alex Wiertzema (USRA B-Mods) | 6th (DNF) | - | - | 16th (DNF) |
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| 7/9/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + 305 Sprints DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, IMCA RaceSaver Sprint Car | Results | | Alex Wiertzema (USRA B-Mods) | 7th | - | 5th | 16th |
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| 7/16/2021 | Rapid Speedway - Rock Rapids, IA B-Mod Special DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 7th | - | 4th | 16th |
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| 7/17/2021 | I-90 Speedway - Hartford, SD MSTS at I-90 Speedway 360 Sprints - Winged, 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Alex Wiertzema (USRA B-Mods) | 2nd | - | - | 10th |
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| 7/23/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 6th (DNF) | - | - | 7th |
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| 8/6/2021 | Rapid Speedway - Rock Rapids, IA Dave Mulder Memorial DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 5th | - | 2nd | 12th |
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| 8/13/2021 | Rapid Speedway - Rock Rapids, IA $1,500 to win at Rapid Speedway Dirt Late Models: Tri-State Late Models DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Alex Wiertzema (USRA B-Mods) | 2nd | - | - | 12th |
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| 8/21/2021 | I-90 Speedway - Hartford, SD LMSS Legends & Paramount Racing Series 305 Sprints - Winged, Street Stocks, Masters Legends, USRA B-Mods, USRA Hobby Stocks | Results | | Alex Wiertzema (USRA B-Mods) | 1st | - | - | 19th (DNF) |
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| 9/18/2021 | Rapid Speedway - Rock Rapids, IA $1,500 to win Rapid Nationals Dirt Late Models: Tri-State Late Models 360 Sprints - Winged, DIRTcar Sportsmans, USRA B-Mods | Results | | Alex Wiertzema (USRA B-Mods) | 4th | - | - | 8th |
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