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| 2/9/2018 | Ocala Speedway - Ocala, FL Sunshine State Midget Challenge 360 Sprints - Winged: USCS United Sprint Car Series Midgets: POWRi National Midgets | Results | | Karter Sarff (Midgets) | 4th | - | - | 11th |
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| 2/10/2018 | Ocala Speedway - Ocala, FL Sunshine State Midget Challenge 360 Sprints - Winged: USCS United Sprint Car Series Midgets: POWRi National Midgets 410 Sprints - Winged | Results | | Karter Sarff (Midgets) | 3rd | - | - | 11th |
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| 3/23/2018 | I-44 Riverside Speedway - Oklahoma City, OK Turnpike Challenge Midgets: POWRi National Midgets with POWRi West Midgets, POWRi Winged Outlaw, Winged A-Class, Stock Non-Wing | Results | | Karter Sarff (Midgets) | 1st | - | - | 16th |
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| 3/24/2018 | I-44 Riverside Speedway - Oklahoma City, OK Turnpike Challenge Midgets: POWRi National Midgets with POWRi West Midgets, POWRi Winged Outlaw, Winged A-Class, Stock Non-Wing | Results | | Karter Sarff (Midgets) | 7th | - | - | 20th |
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| 4/20/2018 | Belle-Clair Speedway - Belleville, IL Knepper Memorial Midgets: POWRi National Midgets Winged Outlaw, Winged A-Class, B Modifieds | Results | | Karter Sarff (Midgets) | 2nd | - | - | 19th |
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| 4/21/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Spring Classic 410 Sprints - Winged: World of Outlaws Midgets: POWRi National Midgets Sprint Cars | Results | | Karter Sarff (Midgets) | 2nd | - | - | 15th |
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| 5/4/2018 | Valley Speedway - Grain Valley, MO Rod End Supply National Powri Midget Show Jeff Osborn Memorial Midgets: POWRi National Midgets with POWRi West Midgets Non-Winged Sprints: POWRi WAR Sprints 410 Sprints - Non-Winged | Results | | Karter Sarff (Midgets) | 4th | - | 2nd | 10th |
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| 5/5/2018 | Lucas Oil Speedway - Wheatland, MO 360 Sprints - Winged: ASCS Warrior Region with ASCS Red River Region Midgets: POWRi National Midgets with POWRi West Midgets Non-Winged Sprints: POWRi WAR Sprints 410 Sprints - Non-Winged | Results | | Karter Sarff (Midgets) | 1st | - | - | 7th |
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| 5/8/2018 | Belle-Clair Speedway - Belleville, IL 250 Winged Outlaw, 500 Winged Open Outlaw | Results | | Karter Sarff (500 Winged Open Outlaw) | 6th | - | - | 1st |
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| 5/11/2018 | Jacksonville Speedway - Jacksonville, IL Midwest Season Opener Midgets: POWRi National Midgets Winged Outlaw | Results | | Karter Sarff (Midgets) | 2nd | - | - | 17th |
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| 5/12/2018 | Macon Speedway - Macon, IL Midwest Season Opener Midgets: POWRi National Midgets Winged Outlaw, Street Stocks, Hornets, Pro Late Model | Results | | Karter Sarff (Midgets) | 3rd | - | - | 4th |
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| 6/6/2018 | Belle-Clair Speedway - Belleville, IL Illinois SPEED Week Midgets: POWRi National Midgets Winged Outlaw, B Modifieds | Results | | Karter Sarff (Midgets) | 3rd | - | 14th | 3rd |
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| 6/7/2018 | Brownstown Bullring - Brownstown, IL Illinois SPEED Week Midgets: POWRi National Midgets Non-Winged Sprints: POWRi Lucas Oil WAR Wildcard Sprints Winged Outlaw, Winged A-Class, 410 Sprints - Non-Winged | Results | | Karter Sarff (Midgets) | 5th | - | 1st | 13th |
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| 6/8/2018 | Jacksonville Speedway - Jacksonville, IL Illinois SPEED Week Midgets: POWRi National Midgets Economy Midgets: POWRi Division II Midgets Non-Winged Sprints: POWRi Lucas Oil WAR Wildcard Sprints Badger Midgets: Badger Midget Auto Racing Association Winged Outlaw, Winged A-Class | Results | | Karter Sarff (Midgets) | 2nd | - | - | 5th |
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| 6/30/2018 | Macon Speedway - Macon, IL Midgets: POWRi National Midgets Winged Outlaw, Street Stocks, Hornets, Pro Late Model | Results | | Karter Sarff (Midgets) | 3rd | - | - | 13th |
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| 7/7/2018 | Fairbury Speedway - Fairbury, IL 410 Sprints - Winged: IRA Interstate Racing Association with MOWA-Midwest Open Wheel Association Midgets: POWRi National Midgets DIRTcar Late Models, DIRTcar UMP Modifieds | Results | | Karter Sarff (Midgets) | 4th | - | - | 7th |
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| 7/8/2018 | Angell Park Speedway - Sun Prairie, WI Pepsi Nationals Midgets: POWRi National Midgets Non Wing Crate Sprints: Wisconsin wingLESS Sprints Badger Midgets: Badger Midget Auto Racing Association Young Lions Legends, Semi-Pro Legends, Pro Legends, Masters Legends, Generic 1 | Results | | Karter Sarff (Midgets) | 3rd | - | - | - | | Karter Sarff (Badger Midgets) | 3rd | - | - | 7th |
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| 7/13/2018 | Valley Speedway - Grain Valley, MO Rod End Supply Thunder in the Valley National Powri Midgets Midgets: POWRi National Midgets with POWRi West Midgets Winged Outlaw | Results | | Karter Sarff (Midgets) | 3rd | - | - | 5th |
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| 7/14/2018 | Valley Speedway - Grain Valley, MO Rod End Supply Thunder in the Valley National Powri Midgets Midgets: POWRi National Midgets with POWRi West Midgets, POWRi Sprint Cars, Winged Outlaw, Winged A-Class | Results | | Karter Sarff (Midgets) | 4th | - | - | 9th |
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| 8/3/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Iron Man 55 410 Sprints - Winged: World of Outlaws Midgets: POWRi National Midgets with POWRi West Midgets DIRTcar UMP Modifieds | Results | | Karter Sarff (Midgets) | 2nd | - | - | 7th |
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| 8/4/2018 | Federated Auto Parts I-55 Raceway - Pevely, MO Iron Man 55 410 Sprints - Winged: World of Outlaws Midgets: POWRi National Midgets with POWRi West Midgets Sprint Cars, DIRTcar UMP Modifieds | Results | | Karter Sarff (Midgets) | 2nd | - | - | 8th |
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| 8/6/2018 | English Creek Speedway - Knoxville, IA 2018 Outlaw Dirt Kart Nationals DAY 1 Winged Outlaw, Adult Medium, Restricted Box Stock, Unrestricted Box Stock, 250 Winged Outlaw Heavy, 500 Winged Open Outlaw | Results | | Karter Sarff (500 Winged Open Outlaw) | DNS | - | 2nd | 2nd |
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| 8/14/2018 | Belle-Clair Speedway - Belleville, IL 250 Winged Outlaw, 500 Winged Open Outlaw | Results | | Karter Sarff (500 Winged Open Outlaw) | 1st | - | - | 1st |
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| 8/18/2018 | Macon Speedway - Macon, IL Camfield Memorial Midgets: POWRi National Midgets Winged Outlaw, Street Stocks, Hornets, Pro Late Model | Results | | Karter Sarff (Midgets) | 5th | - | 2nd | 11th |
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| 8/19/2018 | Angell Park Speedway - Sun Prairie, WI Miller Lite Cornfest 410 Sprints - Winged: IRA Interstate Racing Association Midgets: POWRi National Midgets Economy Midgets: POWRi Division II Midgets Badger Midgets: Badger Midget Auto Racing Association | Results | | Karter Sarff (Midgets) | 7th | - | 2nd | 15th | | Karter Sarff (Badger Midgets) | 7th | - | 2nd | 15th |
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| 9/1/2018 | Lake Ozark Speedway - Eldon, MO 360 Sprints - Winged: ASCS National with ASCS Warrior Region Midgets: POWRi National Midgets with POWRi West Midgets | Results | | Karter Sarff (Midgets) | 6th | - | - | 7th |
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| 9/2/2018 | Lake Ozark Speedway - Eldon, MO 360 Sprints - Winged: ASCS National with ASCS Warrior Region Midgets: POWRi National Midgets with POWRi West Midgets | Results | | Karter Sarff (Midgets) | 6th | - | 2nd | 19th |
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| 9/14/2018 | Jacksonville Speedway - Jacksonville, IL 410 Sprints - Winged: MOWA-Midwest Open Wheel Association Midgets: POWRi National Midgets Street Stocks: Midwest Stock Car Tour 305 Sprints - Winged, Winged Outlaw | Results | | Karter Sarff (Midgets) | 8th | - | - | 9th |
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| 9/15/2018 | Spoon River Speedway - Canton, IL Tom Knowles Memorial 410 Sprints - Winged: MOWA-Midwest Open Wheel Association Midgets: POWRi National Midgets | Results | | Karter Sarff (Midgets) | 2nd | - | - | 8th |
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| 10/13/2018 | Belle-Clair Speedway - Belleville, IL Meents Memorial Midgets, Winged Outlaw, B Modifieds | Results | | Karter Sarff (Midgets) | 5th | - | 1st | 17th |
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| 10/19/2018 | Jacksonville Speedway - Jacksonville, IL Midgets: POWRi National Midgets Winged Outlaw | Results | | Karter Sarff (Midgets) | 4th | - | - | 9th |
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| 10/20/2018 | Southern Illinois Raceway - Marion, IL Midgets: POWRi National Midgets Winged Outlaw | Results | | Karter Sarff (Midgets) | 4th | - | - | 5th |
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| 11/30/2018 | The Dome at America's Center - St. Louis, MO Midgets, Dirt Super Late Models, A Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds | Results | | Karter Sarff (Midgets) | 5th | - | - | 19th (DNF) |
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| 12/1/2018 | The Dome at America's Center - St. Louis, MO Midgets, Dirt Super Late Models, A Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds | Results | | Karter Sarff (Midgets) | - | - | 4th | - |
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