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| 5/4/2018 | I-80 Speedway - Greenwood, NE Bobby Parker Memorial 360 Sprints - Winged: Nebraska 360 sprints Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Tammy Clark (Sport Compact) | 7th | - | - | 9th |
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| 5/11/2018 | I-80 Speedway - Greenwood, NE Dirt Super Late Models, Hobby Stocks, Stock Cars, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 5th | - | - | 11th |
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| 5/18/2018 | I-80 Speedway - Greenwood, NE Dirt Super Late Models, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 2nd | - | - | 7th |
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| 6/1/2018 | I-80 Speedway - Greenwood, NE Dirt Super Late Models, Hobby Stocks, Stock Cars, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 7th | - | - | 9th |
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| 6/15/2018 | I-80 Speedway - Greenwood, NE Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 2nd | - | - | 6th |
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| 6/29/2018 | I-80 Speedway - Greenwood, NE Dirt Super Late Models, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 6th | - | - | 10th |
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| 7/6/2018 | I-80 Speedway - Greenwood, NE Dirt Super Late Models, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 1st | - | - | 10th |
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| 7/27/2018 | I-80 Speedway - Greenwood, NE 360 Sprints - Winged: Nebraska 360 sprints Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 3rd | - | - | 6th |
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| 8/3/2018 | I-80 Speedway - Greenwood, NE Dirt Super Late Models, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 3rd | - | - | 9th |
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| 8/17/2018 | I-80 Speedway - Greenwood, NE Dirt Super Late Models, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Tammy Clark (Sport Compact) | 5th | - | - | 7th |
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| 8/24/2018 | I-80 Speedway - Greenwood, NE Bill Smith Memorial 360 Sprints - Winged: Nebraska 360 sprints Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Tammy Clark (Sport Compact) | 4th | - | - | 12th |
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