| | Heat | Dash | B Feature | A Feature |
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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 | | Tom Koster (Sport Compact) | 3rd | - | - | 2nd |
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| 5/19/2018 | Miller Central Speedway - Miller, SD Miller Central Speedway Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Tom Koster (Pure Stock) | 7th | - | - | 5th |
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| 5/25/2018 | Wagner Speedway - Wagner, SD WS Hobby Stocks, B Modifieds, Street Stocks, Dirt Late Models, Sport Compact, WISSOTA Super Stock | Results | | Tom Koster (Sport Compact) | 4th | - | - | DNS |
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| 6/15/2018 | Wagner Speedway - Wagner, SD WS Hobby Stocks, B Modifieds, Dirt Late Models, Sport Compact, WISSOTA Super Stock | Results | | Tom Koster (Sport Compact) | 2nd | - | - | 4th (DNF) |
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| 6/29/2018 | Wagner Speedway - Wagner, SD WS Dirt Late Models: Tri-State Late Models Hobby Stocks, B Modifieds, Sport Compact, WISSOTA Super Stock | Results | | Tom Koster (Sport Compact) | 2nd | - | - | 6th (DNF) |
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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 | | Tom Koster (Sport Compact) | 1st | - | - | 2nd |
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| 8/24/2018 | Wagner Speedway - Wagner, SD WS Dirt Late Models: Tri-State Late Models Hobby Stocks, B Modifieds, Sport Compact, WISSOTA Super Stock | Results | | Tom Koster (Sport Compact) | 3rd | - | - | 2nd |
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