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| 6/5/2020 | Brown County Speedway - Aberdeen, SD Structural Buildings WISSOTA Late Model Challenge Series WISSOTA Late Model: Wissota Late Model Challenge Series WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 2nd | - | - | 14th |
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| 6/12/2020 | Brown County Speedway - Aberdeen, SD BCS 06/12/2020 Dirt Late Models, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 2nd | - | - | 7th |
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| 6/19/2020 | Brown County Speedway - Aberdeen, SD BCS 06/19/2020 Dirt Late Models, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 7th | - | - | 13th (DNF) |
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| 6/26/2020 | Brown County Speedway - Aberdeen, SD BCS 06/26/2020 Prelude to the RUMBLE! WISSOTA Late Model: Wissota Late Model Challenge Series Dirt Late Models, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 5th | - | - | 9th |
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| 7/3/2020 | Brown County Speedway - Aberdeen, SD BCS 07/03/2020 WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 5th | - | - | 9th |
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| 7/11/2020 | Brown County Speedway - Aberdeen, SD BCS 7/11/2020 Dacotah Rumble WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 7th | - | - | 17th |
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| 7/17/2020 | Brown County Speedway - Aberdeen, SD BCS 07/17/2020 WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 7th | - | - | 13th |
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| 7/24/2020 | Brown County Speedway - Aberdeen, SD BCS 07/24/2020 WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 5th | - | - | 11th |
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| 7/31/2020 | Brown County Speedway - Aberdeen, SD BCS 07/31/2020 WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 2nd | - | - | 12th |
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| 8/21/2020 | Brown County Speedway - Aberdeen, SD BCS 08/21/2020 WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 5th | - | - | 10th |
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| 8/28/2020 | Brown County Speedway - Aberdeen, SD BCS 08/28/2020 WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 6th | - | - | 16th (DNF) |
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| 9/4/2020 | Brown County Speedway - Aberdeen, SD 1st Annual Big Buck Nationals Dirt Late Models, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 7th | - | 5th | 12th |
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