| | Heat | Dash | B Feature | A Feature |
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| 5/1/2021 | Lawton Speedway - Lawton, OK 305 Sprints - Non-Winged, Pony Stock, USRA Limited Mods, USRA Tuners | Results | | Mackenzie Holden (Pony Stock) | 4th | - | - | 13th (DNF) |
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| 5/8/2021 | Lawton Speedway - Lawton, OK Non-Winged Sprints, Pony Stock, USRA Limited Mods, USRA Modifieds, IMCA RaceSaver Sprint Car | Results | | Mackenzie Holden (Pony Stock) | 5th | - | - | 15th |
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| 5/29/2021 | Lawton Speedway - Lawton, OK Comanche County Night Non-Winged Sprints, Pony Stock, USRA Limited Mods, USRA Tuners, IMCA RaceSaver Sprint Car | Results | | Mackenzie Holden (Pony Stock) | 3rd | - | - | 4th |
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| 6/5/2021 | Lawton Speedway - Lawton, OK 360 Sprints - Winged: ASCS Sooner Region with ASCS Lone Star Region Pony Stock, USRA Limited Mods, USRA Modifieds, USRA Tuners | Results | | Mackenzie Holden (Pony Stock) | 6th (DNF) | - | - | DNS |
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| 6/11/2021 | Monarch Motor Speedway - Wichita Falls, TX Sooner Sprint Series!! Round 2 Sunoco Summer Series 305 Sprints - Winged, B Modifieds, Enduro, Pony Stock, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mackenzie Holden (Enduro) | 6th | - | - | DNS |
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| 6/12/2021 | Lawton Speedway - Lawton, OK Non-Winged Sprints, Pony Stock, USRA Limited Mods, USRA Tuners, IMCA RaceSaver Sprint Car | Results | | Mackenzie Holden (Pony Stock) | 7th | - | - | DNS |
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| 7/10/2021 | Lawton Speedway - Lawton, OK Champ 360 Sprints - Winged: Oil Capital Racing Series Non-Winged Sprints, Pony Stock, USRA Limited Mods | Results | | Mackenzie Holden (Pony Stock) | 6th | - | - | 9th |
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| 7/24/2021 | Lawton Speedway - Lawton, OK USRA American Racer Modifed Series USRA Modifieds: USRA American Racer Modified Series A Modifieds, Pony Stock, USRA Limited Mods, USRA Tuners | Results | | Mackenzie Holden (Pony Stock) | 4th | - | - | 14th (DNF) |
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| 8/7/2021 | Lawton Speedway - Lawton, OK Non-Winged Sprints, Pony Stock, USRA Limited Mods, USRA Tuners, IMCA RaceSaver Sprint Car | Results | | Mackenzie Holden (Pony Stock) | 5th | - | - | 11th |
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| 8/14/2021 | Lawton Speedway - Lawton, OK 305 Sprints - Non-Winged, Pony Stock, USRA Modifieds, USRA Tuners | Results | | Mackenzie Holden (Pony Stock) | 2nd | - | - | 12th |
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| 8/21/2021 | Lawton Speedway - Lawton, OK Non-Winged Sprints, Pony Stock, USRA Limited Mods, USRA Modifieds, IMCA RaceSaver Sprint Car | Results | | Mackenzie Holden (Pony Stock) | 6th | - | - | 8th |
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| 8/28/2021 | Lawton Speedway - Lawton, OK Championship Finals - Powder Puff Non-Winged Sprints, Pony Stock, USRA Limited Mods, USRA Modifieds, USRA Tuners, IMCA RaceSaver Sprint Car | Results | | Mackenzie Holden (Pony Stock) | 2nd | - | - | 8th |
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