| | Heat | Dash | B Feature | A Feature |
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| 1/27/2018 | Canyon Speedway Park - Peoria, AZ Winter Challenge Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dwarf | Results | | Brenda Kirby (A Modifieds) | 4th | - | - | 12th |
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| 2/3/2018 | Mohave Valley Raceway - Bullhead City, AZ Season Opener Asphalt Mini Stocks, A Modifieds, Street Stocks, Super Stocks | Results | | Brenda Kirby (A Modifieds) | 2nd | - | - | 9th |
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| 2/17/2018 | Mohave Valley Raceway - Bullhead City, AZ Weekly Racing Asphalt Mini Stocks, A Modifieds, Street Stocks, Dwarf, Super Stocks | Results | | Brenda Kirby (A Modifieds) | 4th | - | - | 15th |
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| 2/28/2018 | Dirt Track at Las Vegas - Las Vegas, NV 410 Sprints - Winged: World of Outlaws 360 Sprints - Non-Winged: USAC Southwest with USAC West Coast Sprint Cars A Modifieds | Results | | Brenda Kirby (A Modifieds) | 9th | - | - | 22nd (DNF) |
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| 3/1/2018 | Dirt Track at Las Vegas - Las Vegas, NV 410 Sprints - Winged: World of Outlaws 360 Sprints - Non-Winged: USAC Southwest with USAC West Coast Sprint Cars A Modifieds | Results | | Brenda Kirby (A Modifieds) | 7th | - | - | 19th |
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| 3/3/2018 | Mohave Valley Raceway - Bullhead City, AZ Weekly Racing Asphalt Mini Stocks, A Modifieds, Street Stocks | Results | | Brenda Kirby (A Modifieds) | 1st | - | - | 4th |
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| 3/17/2018 | Mohave Valley Raceway - Bullhead City, AZ Weekly Racing Asphalt Mini Stocks, A Modifieds, Street Stocks, Dwarf, Super Stocks | Results | | Brenda Kirby (A Modifieds) | 3rd | - | - | 2nd |
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| 3/31/2018 | Mohave Valley Raceway - Bullhead City, AZ Weekly Racing Asphalt Mini Stocks, A Modifieds, Street Stocks, Super Stocks | Results | | Brenda Kirby (A Modifieds) | 3rd | - | - | 4th |
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| 4/14/2018 | Mohave Valley Raceway - Bullhead City, AZ 25th Anniversary Asphalt Mini Stocks, A Modifieds, Dwarf | Results | | Brenda Kirby (A Modifieds) | 1st | - | - | 8th |
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| 4/21/2018 | Mohave Valley Raceway - Bullhead City, AZ Weekly Racing Asphalt Mini Stocks, A Modifieds, Street Stocks, Super Stocks | Results | | Brenda Kirby (A Modifieds) | 2nd | - | - | 5th |
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| 5/5/2018 | Mohave Valley Raceway - Bullhead City, AZ Weekly Racing Asphalt Mini Stocks, A Modifieds, Street Stocks, Super Stocks | Results | | Brenda Kirby (A Modifieds) | 2nd | - | - | 5th |
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| 5/19/2018 | Mohave Valley Raceway - Bullhead City, AZ Weekly Racing Asphalt Mini Stocks, A Modifieds, Street Stocks, Dwarf, Super Stocks | Results | | Brenda Kirby (A Modifieds) | 3rd | - | - | 6th |
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| 5/26/2018 | Arizona Speedway - Queen Creek, AZ John Morris Classic Hobby Stocks, A Modifieds, B Modifieds, Dirt Late Models, Pure Stock | Results | | Brenda Kirby (A Modifieds) | 7th | - | - | 22nd (DNF) |
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| 5/27/2018 | Arizona Speedway - Queen Creek, AZ John Morris Classic Hobby Stocks, A Modifieds, B Modifieds, Dirt Late Models, Pure Stock | Results | | Brenda Kirby (A Modifieds) | 6th | - | - | 20th (DNF) |
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| 9/5/2018 | Boone Speedway - Boone, IA 2018 IMCA Super Nationals A Modifieds, Street Stocks | Results | | Brenda Kirby (A Modifieds) | 6th | - | 13th | - |
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| 9/6/2018 | Boone Speedway - Boone, IA 2018 IMCA Super Nationals A Modifieds, Midwest Modifieds, Street Stocks, Vintage Full Body Stock Cars | Results | | Brenda Kirby (A Modifieds) | 5th | - | 14th | - |
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| 9/7/2018 | Boone Speedway - Boone, IA 2018 IMCA Super Nationals A Modifieds, Street Stocks, Generic 2 | Results | | Brenda Kirby (A Modifieds) | 5th | - | 11th | - |
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| 9/8/2018 | Boone Speedway - Boone, IA 2018 IMCA Super Nationals Hobby Stocks, A Modifieds, Midwest Modifieds, B Modifieds, Street Stocks, Vintage Full Body Stock Cars, Vintage Modifieds, Generic 1 | Results | | Brenda Kirby (A Modifieds) | 10th | - | - | - |
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| 11/7/2018 | Dirt Track at Las Vegas - Las Vegas, NV Duel In The Desert A Modifieds: Duel in the Desert B Modifieds | Results | | Brenda Kirby (A Modifieds) | - | - | - | - |
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| 11/8/2018 | Dirt Track at Las Vegas - Las Vegas, NV A Modifieds: Duel in the Desert B Modifieds | Results | | Brenda Kirby (A Modifieds) | 3rd | - | 6th | - |
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| 11/9/2018 | Dirt Track at Las Vegas - Las Vegas, NV A Modifieds: Duel in the Desert B Modifieds | Results | | Brenda Kirby (A Modifieds) | 8th | - | 12th | - |
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| 11/10/2018 | Dirt Track at Las Vegas - Las Vegas, NV A Modifieds: Duel in the Desert B Modifieds | Results | | Brenda Kirby (A Modifieds) | - | - | - | 10th |
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| 11/16/2018 | Central Arizona Raceway - Casa Grande, AZ Desert Thunder Winged Outlaw: Power 600 Series Wing Micros Stock Cars, A Modifieds, Restricted 'A' Class, Winged A-Class, B Modifieds, Pure Stock | Results | | Brenda Kirby (A Modifieds) | 6th | - | 9th | - |
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| 11/17/2018 | Central Arizona Raceway - Casa Grande, AZ Desert Thunder Winged Outlaw: Power 600 Series Wing Micros Stock Cars, A Modifieds, Restricted 'A' Class, Winged A-Class, B Modifieds, Pure Stock | Results | | Brenda Kirby (A Modifieds) | 5th | - | 14th | - |
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