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| 4/27/2018 | Park Jefferson International Speedway - Jefferson, SD South Dakota Sprint Car Nationals 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints 305 Sprints - Winged: IMCA RaceSaver Sprints Stock Cars, B Modifieds, Hornets | Results | | Lee Grosz (360 Sprints - Winged) | 3rd | - | - | - |
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| 4/28/2018 | Park Jefferson International Speedway - Jefferson, SD South Dakota Sprint Car Nationals 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints 305 Sprints - Winged: IMCA RaceSaver Sprints Hobby Stocks, A Modifieds, B Modifieds | Results | | Lee Grosz (360 Sprints - Winged) | - | - | - | 10th |
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| 5/4/2018 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + MSTS 360 Sprints 360 Sprints - Winged, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Lee Grosz (360 Sprints - Winged) | 1st | - | - | 1st |
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| 5/5/2018 | Wagner Speedway - Wagner, SD Wagner Speedway 360 Sprints - Winged, Hobby Stocks, B Modifieds, Street Stocks, Dirt Late Models, Sport Compact | Results | | Lee Grosz (360 Sprints - Winged) | 1st | - | - | 3rd |
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| 5/18/2018 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + MSTS 360 Sprints 360 Sprints - Winged, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Lee Grosz (360 Sprints - Winged) | 1st | - | - | 13th (DNF) |
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| 5/25/2018 | Jackson Motorplex - Jackson, MN Midwest Power Series 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints 305 Sprints - Winged, 360 Sprints - Non-Winged | Rain Out |
| 5/26/2018 | Park Jefferson International Speedway - Jefferson, SD 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints 305 Sprints - Winged: IMCA RaceSaver Sprints Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Lee Grosz (360 Sprints - Winged) | 4th | - | - | 3rd |
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| 6/1/2018 | Jackson Motorplex - Jackson, MN 360 Sprints - Winged: Nebraska 360 sprints 305 Sprints - Winged, 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | 1st | - | - | 7th |
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| 6/15/2018 | Jackson Motorplex - Jackson, MN 360 Sprints - Winged, 305 Sprints - Winged, 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | 2nd | - | - | 3rd |
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| 6/21/2018 | Norman County Raceway - Ada, MN Norman County Fair - Battle of the Wings! 410 Sprints - Winged: Northern Outlaw Sprint Association Hobby Stocks, Semi-Pro Legends, Limited Sport Mod | Results | | Lee Grosz (410 Sprints - Winged) | 1st | - | - | 21st (DNF) |
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| 6/23/2018 | Off Road Speedway - Norfolk, NE 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints | Results | | Lee Grosz (360 Sprints - Winged) | 3rd | - | - | 3rd |
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| 6/24/2018 | Casino Speedway - Watertown, SD Buffalo Wild Wings NOSA Sprint Car Series 410 Sprints - Winged: Northern Outlaw Sprint Association WISSOTA Midwest Mods, WISSOTA Street Stock | Results | | Lee Grosz (410 Sprints - Winged) | 6th (DNF) | - | DNS | - |
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| 6/29/2018 | Jackson Motorplex - Jackson, MN Midwest Power Series Presented by Spencer Radio Group 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints 305 Sprints - Winged, 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | 1st | - | - | 5th |
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| 7/6/2018 | Wagner Speedway - Wagner, SD 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints 305 Sprints - Winged: IMCA RaceSaver Sprints B Modifieds, Dirt Late Models, WISSOTA Super Stock | Results | | Lee Grosz (360 Sprints - Winged) | 7th (DNF) | - | - | 8th |
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| 7/7/2018 | Wagner Speedway - Wagner, SD 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints 305 Sprints - Winged: IMCA RaceSaver Sprints Hobby Stocks, Street Stocks, Sport Compact | Results | | Lee Grosz (360 Sprints - Winged) | 2nd | - | - | 8th |
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| 7/12/2018 | Sioux Speedway - Sioux Center, IA 9th Annual Sprint Car Showdown 360 Sprints - Winged | Results | | Lee Grosz (360 Sprints - Winged) | 4th | - | - | 4th |
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| 7/15/2018 | Red River Valley Speedway - West Fargo, ND Fair Special | Classes running: NOSA Sprint Cars, IMCA Modifieds, INEX Legends Sprint Cars, A Modifieds, Semi-Pro Legends | Results | | Lee Grosz (Sprint Cars) | 6th | - | - | 5th |
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| 7/17/2018 | Rapid Speedway - Rock Rapids, IA 3rd Annual Randy Droescher Memorial Dirt Late Models: Tri-State Late Models 360 Sprints - Winged, DIRTcar Late Models | Results | | Lee Grosz (360 Sprints - Winged) | 3rd | - | - | 1st |
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| 7/20/2018 | Jackson Motorplex - Jackson, MN Full Tilt Performance presents the Barb Wieskus Memorial 360 Sprints - Winged: Malvern Bank 360 Sprints 305 Sprints - Winged, 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | 2nd | 4th | - | 3rd |
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| 8/2/2018 | Knoxville Raceway - Knoxville, IA Knoxville ASCS 360 Nationals 360 Sprints - Winged: ASCS National 410 Sprints - Winged | Results | | Lee Grosz (360 Sprints - Winged) | 3rd | - | - | 15th |
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| 8/4/2018 | Knoxville Raceway - Knoxville, IA Race 16+360 Nationals! 360 Sprints - Winged: ASCS National 410 Sprints - Winged, 305 Sprints - Winged | Results | | Lee Grosz (360 Sprints - Winged) | - | - | 23rd (DNF) | - |
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| 8/17/2018 | Jackson Motorplex - Jackson, MN New Fashion Pork Night Presented by Livewire Printing Company welcomes the Midwest Power Series 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints 305 Sprints - Winged, 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | 1st | 5th | - | 3rd |
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| 8/18/2018 | Off Road Speedway - Norfolk, NE 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints | Results | | Lee Grosz (360 Sprints - Winged) | 4th | - | - | 10th |
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| 8/24/2018 | Jackson Motorplex - Jackson, MN 360 Sprints - Winged, 305 Sprints - Winged, 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | 4th | - | - | 2nd |
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| 8/25/2018 | Park Jefferson International Speedway - Jefferson, SD 360 Sprints - Winged: Malvern Bank 360 Sprints with Nebraska 360 sprints Limited Modified | Results | | Lee Grosz (360 Sprints - Winged) | 2nd | - | - | 3rd |
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| 8/31/2018 | Jackson Motorplex - Jackson, MN 360 Nationals 360 Sprints - Winged, 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | 4th | - | - | 7th |
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| 9/1/2018 | Jackson Motorplex - Jackson, MN 360 Nationals 360 Sprints - Winged, 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | 2nd | - | - | 2nd |
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| 9/2/2018 | Jackson Motorplex - Jackson, MN 360 Nationals 360 Sprints - Winged: ASCS National 360 Sprints - Non-Winged | Results | | Lee Grosz (360 Sprints - Winged) | - | 3rd | - | 3rd |
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| 9/8/2018 | Wagner Speedway - Wagner, SD September Sprint-tacular Dirt Late Models: Tri-State Late Models 360 Sprints - Winged, 305 Sprints - Winged, Hobby Stocks, B Modifieds, Street Stocks | Results | | Lee Grosz (360 Sprints - Winged) | 1st | - | - | 3rd |
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| 9/14/2018 | Rapid Speedway - Rock Rapids, IA Rapid Nationals Night #1 360 Sprints - Winged, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Lee Grosz (360 Sprints - Winged) | 1st | - | - | 1st |
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