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| 4/28/2018 | Plymouth Speedway - Plymouth, IN Cabin Fever and Fireworks DIRTcar UMP Modifieds, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 3rd | - | - | 10th |
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| 5/5/2018 | Plymouth Speedway - Plymouth, IN USAC Spring Series AMSOIL National Sprint Cars 410 Sprints - Non-Winged: USAC National Sprint Cars DIRTcar UMP Modifieds, Street Stocks | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 5th | - | - | 16th |
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| 5/19/2018 | Plymouth Speedway - Plymouth, IN School Team Spirit Night DIRTcar UMP Modifieds, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints, Mini Wedge | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 3rd | - | - | 11th |
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| 5/27/2018 | Kokomo Speedway - Kokomo, IN BC's Indiana Double A Modifieds, 410 Sprints - Non-Winged, Hornets | Results | | Garrett Jameson (A Modifieds) | 6th | - | 11th | 8th |
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| 6/2/2018 | Plymouth Speedway - Plymouth, IN Kosciusko Night & Autograph Session DIRTcar UMP Modifieds, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 7th | - | - | 9th |
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| 6/16/2018 | Plymouth Speedway - Plymouth, IN Dad's Night DIRTcar UMP Modifieds, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 5th | - | - | 7th |
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| 6/23/2018 | Plymouth Speedway - Plymouth, IN Elkhart County Night DIRTcar UMP Modifieds, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints, Mini Wedge | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 4th | - | - | 15th |
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| 6/30/2018 | Fairbury Speedway - Fairbury, IL DIRTcar Late Models, DIRTcar UMP Modifieds, DIRTcar Sportsmans, B Modifieds, Street Stocks | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 6th | - | - | 9th |
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| 7/3/2018 | Kokomo Speedway - Kokomo, IN Fireworks!!! A Modifieds, 410 Sprints - Non-Winged, Hornets | Results | | Garrett Jameson (A Modifieds) | 8th | - | 11th | - |
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| 7/7/2018 | Plymouth Speedway - Plymouth, IN Boy Scouts & Girl Scouts Night DIRTcar UMP Modifieds, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 4th | - | - | 7th |
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| 7/28/2018 | Plymouth Speedway - Plymouth, IN Fulton County Night DIRTcar UMP Modifieds, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 8th | - | - | 13th |
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| 8/4/2018 | Plymouth Speedway - Plymouth, IN Michigan/Indiana Challenge Wkd Night 2 360 Sprints - Winged: GLSS-Great Lakes Super Sprints DIRTcar UMP Modifieds, Stock Non-Wing, Street Stocks | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 4th | - | - | 6th |
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| 8/11/2018 | Plymouth Speedway - Plymouth, IN Riley Children’s Hospital Night DIRTcar UMP Modifieds, Asphalt Mini Stocks, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 5th | - | - | 10th |
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| 8/18/2018 | Plymouth Speedway - Plymouth, IN Championship Night Final Points DIRTcar UMP Modifieds, Super Sports, Stock Non-Wing, Street Stocks, Winged Crate Sprints | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 4th | - | - | 11th |
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| 9/1/2018 | Fairbury Speedway - Fairbury, IL DIRTcar Late Models, DIRTcar UMP Modifieds | Results | | Garrett Jameson (DIRTcar UMP Modifieds) | 10th | - | 9th | - |
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