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| 2/9/2018 | Arizona Speedway - Queen Creek, AZ AZ MOD Tour A Modifieds: IMCA Arizona Dirt Tour Dirt Super Late Models, B Modifieds | Results | | Jeff Larson (A Modifieds) | 2nd | - | 2nd | 12th |
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| 2/10/2018 | Arizona Speedway - Queen Creek, AZ AZ MOD Tour A Modifieds: IMCA Arizona Dirt Tour Dirt Super Late Models, B Modifieds | Results | | Jeff Larson (A Modifieds) | 7th | - | 6th | - |
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| 2/11/2018 | Central Arizona Raceway - Casa Grande, AZ A Modifieds: IMCA Arizona Dirt Tour Dirt Super Late Models, B Modifieds | Results | | Jeff Larson (A Modifieds) | 6th | - | 3rd | 13th |
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| 2/12/2018 | Central Arizona Raceway - Casa Grande, AZ A Modifieds: IMCA Arizona Dirt Tour Dirt Super Late Models, B Modifieds | Results | | Jeff Larson (A Modifieds) | 5th | - | 1st | 12th |
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| 2/15/2018 | Canyon Speedway Park - Peoria, AZ Arizona Mod Tour Round 5 A Modifieds: IMCA Arizona Dirt Tour B Modifieds | Results | | Jeff Larson (A Modifieds) | 5th | - | 1st | 12th |
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| 2/16/2018 | Abilene Speedway - Abilene, TX Lonestar Stock Car Tour Hobby Stocks, Stock Cars, A Modifieds, B Modifieds | Results | | Jeff Larson (A Modifieds) | - | - | - | 20th |
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| 2/17/2018 | Abilene Speedway - Abilene, TX Lonestar Stock Car Tour Hobby Stocks, Stock Cars, A Modifieds, B Modifieds | Results | | Jeff Larson (A Modifieds) | - | - | - | 9th |
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| 5/10/2018 | 300 Raceway - Farley, IA Sweet Manufacturing Modified Super Weekend - Practice A Modifieds, B Modifieds | Results | | Jeff Larson (A Modifieds) | - | - | - | - |
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| 5/11/2018 | 300 Raceway - Farley, IA Sweet Manufacturing Modified Super Weekend Day 1 A Modifieds, B Modifieds | Results | | Jeff Larson (A Modifieds) | 10th | - | - | - |
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| 5/12/2018 | 300 Raceway - Farley, IA Sweet Manufacturing Modified Super Weekend Day 2 A Modifieds, B Modifieds | Results | | Jeff Larson (A Modifieds) | 10th | - | - | - |
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| 6/21/2018 | 141 Speedway - Maribel, WI | Results | | Jeff Larson (A Modifieds) | - | - | 8th | - |
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| 7/18/2018 | CJ Speedway - Columbus Junction, IA IMCA Late Models: Deery Brothers Summer Series Stock Cars, A Modifieds | Results | | Jeff Larson (A Modifieds) | 5th | - | 1st | 12th |
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| 7/24/2018 | Dubuque Fairgrounds Speedway - Dubuque, IA 360 Sprints - Winged: Sprint Invaders A Modifieds, B Modifieds | Results | | Jeff Larson (A Modifieds) | 1st | - | - | 5th |
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| 7/25/2018 | Dubuque Fairgrounds Speedway - Dubuque, IA Julien Dubuque Classic Fair Race A Modifieds, B Modifieds, Dirt Late Models, Masters Legends, Economy Late Models, Sport Compact | Results | | Jeff Larson (A Modifieds) | 3rd | - | - | 3rd |
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| 7/29/2018 | Dubuque Fairgrounds Speedway - Dubuque, IA Race Day at the Fair A Modifieds, B Modifieds, Dirt Late Models, Vintage Modifieds, Economy Late Models | Results | | Jeff Larson (A Modifieds) | 2nd | - | - | 3rd |
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| 8/30/2018 | 300 Raceway - Farley, IA Runde Auto Group 41st Yankee Dirt Track Classic - Night 1 Stock Cars, A Modifieds, B Modifieds, Young Lions Legends, Economy Late Models, IMCA Late Models | Results | | Jeff Larson (A Modifieds) | - | - | - | - |
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| 8/31/2018 | 300 Raceway - Farley, IA Runde Auto Group 41st Yankee Dirt Track Classic - Night 2 Stock Cars, A Modifieds, B Modifieds, Economy Late Models, IMCA Late Models | Results | | Jeff Larson (A Modifieds) | 3rd | - | - | - |
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| 9/5/2018 | Boone Speedway - Boone, IA 2018 IMCA Super Nationals A Modifieds, Street Stocks | Results | | Jeff Larson (A Modifieds) | 6th | - | 9th | - |
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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 | | Jeff Larson (A Modifieds) | 3rd | - | 2nd | - |
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| 9/7/2018 | Boone Speedway - Boone, IA 2018 IMCA Super Nationals A Modifieds, Street Stocks, Generic 2 | Results | | Jeff Larson (A Modifieds) | 4th | - | 4th | - |
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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 | | Jeff Larson (A Modifieds) | DNS | - | - | - |
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| 9/29/2018 | Dubuque Fairgrounds Speedway - Dubuque, IA Pepsi Rumble on the River A Modifieds, B Modifieds, Masters Legends, Economy Late Models | Results | | Jeff Larson (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 | | Jeff Larson (A Modifieds) | 2nd | - | - | - |
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| 11/9/2018 | Dirt Track at Las Vegas - Las Vegas, NV A Modifieds: Duel in the Desert B Modifieds | Results | | Jeff Larson (A Modifieds) | 4th | - | 2nd | - |
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| 11/10/2018 | Dirt Track at Las Vegas - Las Vegas, NV A Modifieds: Duel in the Desert B Modifieds | Results | | Jeff Larson (A Modifieds) | - | - | - | - |
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