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| 6/1/2018 | Brown County Speedway - Aberdeen, SD Titan Machinery Season Opener Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 6th (DNF) | - | - | 8th |
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| 6/8/2018 | Brown County Speedway - Aberdeen, SD RDO Equipment Company Race Night Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 7th | - | - | 8th |
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| 6/15/2018 | Brown County Speedway - Aberdeen, SD Sheehan Trailers Fargo Force Super Stock Series with All Classes Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 6th | - | - | 13th |
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| 6/22/2018 | Brown County Speedway - Aberdeen, SD $2,000 to win WISSOTA Late Model Challenge Series WISSOTA Late Model: Wissota Late Model Challenge Series WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 4th | - | - | 8th |
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| 7/13/2018 | Brown County Speedway - Aberdeen, SD Bullet Sportswear Fan Appreciation Night Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 6th | - | - | 10th |
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| 7/16/2018 | Brown County Speedway - Aberdeen, SD 360 Sprints - Winged: ASCS National Super Sports, Vintage Modifieds | Results | | Delwain Lehr (Super Sports) | 6th | - | - | 9th |
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| 7/20/2018 | Brown County Speedway - Aberdeen, SD Roto Roter Sewer Drain Service Race Night Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 6th | - | - | 8th |
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| 7/27/2018 | Brown County Speedway - Aberdeen, SD Bieglers C & S Motorsports Presents Advantage RV's Modified Tour with Fargo Force Super Stock Series Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 7th | - | - | 12th |
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| 7/28/2018 | Brown County Speedway - Aberdeen, SD Ken's Superfair Foods Presents Advantage RV's Modified Tour with Fargo Force Super Stock Series Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 8th (DNF) | - | - | 13th |
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| 8/3/2018 | Brown County Speedway - Aberdeen, SD Bullet SportsWear Double Down Nationals AFCO Race of Champions Qualifier Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 5th | - | - | 14th |
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| 8/4/2018 | Brown County Speedway - Aberdeen, SD Bullet SportsWear & Aberdeen Hotel Alliance Kids's Night Double Down Nationals Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 7th | - | - | 19th |
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| 8/10/2018 | Brown County Speedway - Aberdeen, SD Mustang Seeds Season Championship Night Pure Stock, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Delwain Lehr (WISSOTA Super Stock) | 7th | - | - | 15th |
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| 9/21/2018 | Jamestown Speedway - Jamestown, ND 47th ANNUAL STOCK CAR STAMPEDE night 1 A Modifieds, Midwest Modifieds, B Modifieds, Semi-Pro Legends, Pure Stock, All Star Slingshots, WISSOTA Midwest Mods, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock, Junior Slingshots | Results | | Delwain Lehr (WISSOTA Super Stock) | 6th (DNF) | - | - | 22nd (DNF) |
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