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| 5/1/2021 | Rice Lake Speedway - Rice Lake, WI 69th Season Opener, 5 Class Program, Best Appearing Car Judging, Five Class Program WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 8th (DNF) | - | - | DNS |
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| 5/8/2021 | Rice Lake Speedway - Rice Lake, WI Five Class Program WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 2nd | - | - | 17th (DNF) |
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| 5/15/2021 | Rice Lake Speedway - Rice Lake, WI WISSOTA Late Models Trackside Collectibles 40 plus 5 Class program WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 7th | - | - | 12th (DNF) |
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| 5/22/2021 | Rice Lake Speedway - Rice Lake, WI Five Class Program, Race of Champions Qualifier WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 8th (DNF) | - | - | DNS |
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| 6/5/2021 | Rice Lake Speedway - Rice Lake, WI St Croix Casino Mystery Class $1,000 to Win Feature Plus weekly classes WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 4th | - | - | 7th (DNF) |
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| 6/18/2021 | Red Cedar Speedway - Menomonie, WI Regular Show + Mechanics Races for all (4) Classes Hornets, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 6th | - | - | 11th (DNF) |
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| 6/19/2021 | Rice Lake Speedway - Rice Lake, WI Real Estate Solutions, Five Class Program WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 6th (DNF) | - | - | DNS |
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| 7/3/2021 | Rice Lake Speedway - Rice Lake, WI Rice Lake Tourism Firecracker Special, Barron County Relay at the Races, 5 class program WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 2nd | - | - | 13th |
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| 7/10/2021 | Rice Lake Speedway - Rice Lake, WI DCS Netlink No Mystery $1,000 to Win Super Feature + PS, St, MWM Mods WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 5th | - | - | 12th (DNF) |
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| 8/14/2021 | Rice Lake Speedway - Rice Lake, WI Kid's Night Bike Giveaway McCain Foods No Mystery $1,000 to Win Midwest Mod Feature WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 6th | - | - | 10th |
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| 8/21/2021 | Rice Lake Speedway - Rice Lake, WI Old Sothern BBQ Season Championships, Five Class Program WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 3rd | - | - | 7th |
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| 9/4/2021 | Rice Lake Speedway - Rice Lake, WI Holiday Season Finale, $1000 to win Pure Stocks (Increased pay all classes) WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 6th | - | 7th | - |
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| 9/10/2021 | Eagle Valley Speedway - Jim Falls, WI 2nd Annual - Dalbeck Logging - Union Trailer & Power Equipment Jim Town Showdown A Modifieds, B Modifieds, Street Stocks, Super Stocks, Pure Stock, USRA Late Models, WISSOTA Modifieds | Results | | Mike Siewert (Super Stocks) | 5th | - | - | 26th (DNF) |
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| 9/24/2021 | Red Cedar Speedway - Menomonie, WI 41st Annual Punky Manor Challenge of Champions Night #1 Heats WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 8th | - | - | - |
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| 9/25/2021 | Red Cedar Speedway - Menomonie, WI 41st Annual Punky Manor Challenge Of Champions Features & Hall of Fame Induction WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Siewert (WISSOTA Super Stock) | 8th | - | 7th | - |
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