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| 5/9/2020 | Park Jefferson International Speedway - Jefferson, SD SPRING NATIONALS PRESENTED BY RICKY LEMMEN MOTORSPORTS 305 Sprints - Winged, Hobby Stocks, Stock Cars, B Modifieds, IMCA Modified | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 6th |
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| 5/16/2020 | Park Jefferson International Speedway - Jefferson, SD $2000 to Win Tri State Late Models plus IMCA Weekly Racing Season Opener Dirt Late Models: Tri-State Late Models 305 Sprints - Winged, Dirt Super Late Models, Hobby Stocks, Stock Cars, B Modifieds, Hornets | Rain Out |
| 5/17/2020 | Interstate Speedway (SD) - Jefferson, SD Professional Concrete Presents Sprint Series Of Nebraska Racesaver Sprints plus Weekly Racing Series 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 10th |
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| 5/23/2020 | I-90 Speedway - Hartford, SD 2020 Season Opener: Paramount Racing Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 2nd | - | - | 5th |
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| 5/25/2020 | Park Jefferson International Speedway - Jefferson, SD South Dakota Sprint Car Nationals presented by Pepsi of Siouxland 360 Sprints - Winged: Malvern Bank 360 Sprints with Midwest Sprint Touring Series A Modifieds: USMTS - United States Modified Touring Series 305 Sprints - Winged, Hobby Stocks, B Modifieds | Rain Out |
| 5/30/2020 | I-90 Speedway - Hartford, SD 360 Sprints - Winged: Midwest Sprint Touring Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 1st | - | - | 6th |
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| 6/6/2020 | I-90 Speedway - Hartford, SD 360 Sprints - Winged: Midwest Sprint Touring Series with Midwest Power Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 4th |
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| 6/12/2020 | Wagner Speedway - Wagner, SD Season Opener 305 Sprints - Winged, Hobby Stocks, B Modifieds, Dirt Late Models, Limited Modified, Sport Compact | Results | | Trefer Waller (305 Sprints - Winged) | 6th | - | - | 8th |
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| 6/13/2020 | I-90 Speedway - Hartford, SD 360 Sprints - Winged: Midwest Sprint Touring Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 9th |
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| 6/14/2020 | Interstate Speedway (SD) - Jefferson, SD Ideal Wheels Presents 305 Racesaver Sprints IMCA Weekly Racing Series 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Trefer Waller (305 Sprints - Winged) | 7th | - | - | 12th |
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| 6/20/2020 | I-90 Speedway - Hartford, SD Hartford Night + Paramount Racing Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 8th |
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| 6/21/2020 | Stuart Raceway - Stuart, NE 305 Sprints - Winged, Hobby Stocks, Stock Cars, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, B Modifieds | Results | | Trefer Waller (305 Sprints - Winged) | 1st | - | - | 1st |
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| 6/27/2020 | I-90 Speedway - Hartford, SD Tri-State Late Models + Paramount Racing Series Dirt Late Models: Tri-State Late Models 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 7th |
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| 6/28/2020 | Stuart Raceway - Stuart, NE 305 Sprints - Winged, Hobby Stocks, Stock Cars, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, B Modifieds | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 2nd |
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| 7/4/2020 | I-90 Speedway - Hartford, SD 360 Sprints - Winged: Midwest Sprint Touring Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 5th | - | - | 7th |
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| 7/18/2020 | I-90 Speedway - Hartford, SD 360 Sprints - Winged: Midwest Sprint Touring Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 7th (DNF) | - | - | 4th |
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| 7/19/2020 | Stuart Raceway - Stuart, NE 305 Sprints - Winged, Hobby Stocks, Stock Cars, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, B Modifieds, Vintage Modifieds | Results | | Trefer Waller (305 Sprints - Winged) | 2nd | - | - | 6th |
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| 7/20/2020 | Park Jefferson International Speedway - Jefferson, SD IMCA SpeedShiftTV Dirt Knights Tour 305 Sprints - Winged, Hobby Stocks, Stock Cars, B Modifieds, Hornets, IMCA Modified | Results | | Trefer Waller (305 Sprints - Winged) | 2nd | - | - | 6th |
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| 7/25/2020 | I-90 Speedway - Hartford, SD MSTS + Power Series at I-90 Speedway 360 Sprints - Winged: Midwest Sprint Touring Series with Midwest Power Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 5th | - | 2nd | 12th |
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| 7/26/2020 | Stuart Raceway - Stuart, NE 305 Sprints - Winged, Hobby Stocks, Stock Cars, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, B Modifieds, Vintage Full Body Stock Cars | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 3rd |
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| 7/31/2020 | Crawford County Speedway - Denison, IA Last Points Night of Weekly Racing 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, Sport Compact | Results | | Trefer Waller (305 Sprints - Winged) | 4th | - | - | 7th |
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| 8/1/2020 | I-90 Speedway - Hartford, SD Tri-State Late Models + Paramount Racing Series Dirt Late Models: Tri-State Late Models 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 3rd | - | - | 5th |
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| 8/2/2020 | Stuart Raceway - Stuart, NE 305 Sprints - Winged, Hobby Stocks, Stock Cars, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, B Modifieds, Vintage Full Body Stock Cars | Results | | Trefer Waller (305 Sprints - Winged) | 2nd | - | - | 2nd |
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| 8/7/2020 | Crawford County Speedway - Denison, IA Denny Hovinga Special 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Trefer Waller (305 Sprints - Winged) | 8th | - | - | 14th (DNF) |
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| 8/8/2020 | I-90 Speedway - Hartford, SD Paramount Racing Series 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 2nd | - | - | 4th |
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| 8/9/2020 | Stuart Raceway - Stuart, NE 305 Sprints - Winged, Hobby Stocks, Stock Cars, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, B Modifieds | Results | | Trefer Waller (305 Sprints - Winged) | 2nd | - | - | 2nd |
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| 8/15/2020 | I-90 Speedway - Hartford, SD Paramount Racing Series + Hobby & LMSS Pit Stop Race 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 5th | - | - | 7th |
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| 8/16/2020 | Stuart Raceway - Stuart, NE 305 Sprints - Winged, Hobby Stocks, Stock Cars, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, B Modifieds | Results | | Trefer Waller (305 Sprints - Winged) | 2nd | - | - | 6th |
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| 8/22/2020 | I-90 Speedway - Hartford, SD Paramount Racing Series + Extra Features 305 Sprints - Winged, Street Stocks, Masters Legends, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 2nd | - | - | - |
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| 8/29/2020 | I-90 Speedway - Hartford, SD Paramount Racing Series + LMSS Legends Race 305 Sprints - Winged, Street Stocks, Masters Legends, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 4th | - | - | 7th |
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| 9/12/2020 | I-90 Speedway - Hartford, SD *Topless* Tri-State Late Models + Paramount Series Championship Dirt Late Models: Tri-State Late Models 305 Sprints - Winged, Street Stocks, USRA B-Mods, USRA Hobby Stocks | Results | | Trefer Waller (305 Sprints - Winged) | 4th | - | - | 9th |
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| 9/18/2020 | Huset's Speedway - Brandon, SD Power Series Nationals 360 Sprints - Winged: Midwest Power Series IMCA RaceSaver Sprint Car | Results | | Trefer Waller (IMCA RaceSaver Sprint Car) | 5th | - | 10th | - |
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| 9/19/2020 | Huset's Speedway - Brandon, SD Power Series Nationals 360 Sprints - Winged: Midwest Power Series IMCA RaceSaver Sprint Car | Results | | Trefer Waller (IMCA RaceSaver Sprint Car) | 6th | - | 8th | - |
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