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| 4/16/2021 | Cedar Lake Speedway - New Richmond, WI Legendary Opener Day 2 Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Street Stocks, Dirt Late Models, 305 Sprints - Non-Winged, Pony Stock, Super Stocks, Pure Stock, USRA Late Models | Results | | Mike Mueller (305 Sprints - Non-Winged) | - | - | - | 6th |
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| 4/17/2021 | Cedar Lake Speedway - New Richmond, WI Legendary Open Day 3 Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Street Stocks, Dirt Late Models, 305 Sprints - Non-Winged, Pony Stock, Super Stocks, Pure Stock, USRA Late Models | Results | | Mike Mueller (305 Sprints - Non-Winged) | - | - | - | 6th |
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| 5/1/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #4 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks, USRA Late Models | Results | | Mike Mueller (305 Sprints - Non-Winged) | 3rd | - | - | 2nd |
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| 5/7/2021 | Eagle Valley Speedway - Jim Falls, WI UMSS Sprint Car Showdown Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series 360 Sprints - Winged, A Modifieds, B Modifieds, Street Stocks, Winged Outlaw, Hornets, Super Stocks, Pure Stock, USRA Late Models | Results | | Mike Mueller (360 Sprints - Non-Winged) | 4th | - | - | 5th |
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| 5/8/2021 | Cedar Lake Speedway - New Richmond, WI Spring Sprint Special 410 Sprints - Winged: IRA Interstate Racing Association Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series Winged A-Class, 305 Sprints - Non-Winged | Results | | Mike Mueller (305 Sprints - Non-Winged) | 3rd | - | - | 3rd |
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| 5/15/2021 | Cedar Lake Speedway - New Richmond, WI School Bus Special 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series Midwest Modifieds, 305 Sprints - Non-Winged, Generic 1 | Results | | Mike Mueller (305 Sprints - Non-Winged) | 4th | - | - | 2nd |
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| 5/22/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #5 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks, USRA Late Models | Results | | Mike Mueller (305 Sprints - Non-Winged) | 5th | - | - | - |
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| 5/28/2021 | I-94 Speedway - Fergus Falls, MN Steffes Street Stock Tour and Traditional Sprint Cars 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series Hornets, Economy Late Models, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock | Results | | Mike Mueller (360 Sprints - Non-Winged) | 3rd | - | - | 3rd |
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| 5/29/2021 | Viking Speedway - Alexandria, MN Memorial Day Double Header Steffes Street Stock Tour and Traditional & Winged Sprint Cars Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Mueller (360 Sprints - Non-Winged) | 4th | - | - | 3rd |
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| 5/30/2021 | Viking Speedway - Alexandria, MN Memorial Day Double Header Steffes Street Stock Tour and Traditional & Winged Sprint Cars Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series Sprint Cars, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Mike Mueller (360 Sprints - Non-Winged) | 3rd | - | - | 1st |
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| 6/5/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #6 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks | Results | | Mike Mueller (305 Sprints - Non-Winged) | 2nd | - | - | 2nd |
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| 6/19/2021 | Ogilvie Raceway - Ogilvie, MN Davey Tabor Memorial [Non-MSTS points] 360 Sprints - Winged: Midwest Sprint Touring Series with Midwest Power Series Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series Vintage Modifieds: Northern Vintage Stockcar Racers Winged Sprints, Winged A-Class, Non-Winged Sprints, Vintage Full Body Stock Cars, WISSOTA Hornet | Results | | Mike Mueller (Non-Winged Sprints) | 5th | - | - | 7th |
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| 7/2/2021 | Cedar Lake Speedway - New Richmond, WI 410 Sprints - Winged: World of Outlaws 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series 305 Sprints - Non-Winged | Results | | Mike Mueller (305 Sprints - Non-Winged) | 3rd | - | - | 1st |
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| 7/16/2021 | Chateau Speedway - Lansing, MN UMSS Non Wing Traditional Sprint Special #2 360 Sprints - Non-Winged, USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Hornet | Results | | Mike Mueller (360 Sprints - Non-Winged) | 4th | - | - | 6th |
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| 7/17/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #10 / Pro Stock $5,000 To Win 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series 305 Sprints - Non-Winged, 600cc Modifieds, Super Stocks, USRA Late Models | Results | | Mike Mueller (305 Sprints - Non-Winged) | 4th | - | - | 2nd |
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| 7/24/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #11 / Late Model $5,000 To Win 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks | Results | | Mike Mueller (305 Sprints - Non-Winged) | 4th | - | - | 4th |
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| 8/21/2021 | Cedar Lake Speedway - New Richmond, WI CLS Dash #14 / Season Championship 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Dirt Late Models, 305 Sprints - Non-Winged, Super Stocks, USRA Late Models | Results | | Mike Mueller (305 Sprints - Non-Winged) | 3rd | - | - | 1st |
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| 9/4/2021 | Jackson Motorplex - Jackson, MN C & B OPERATIONS Power Series Nationals 360 Sprints - Winged: Midwest Sprint Touring Series with Midwest Power Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series Non Wing Crate Sprints | Results | | Mike Mueller (Non Wing Crate Sprints) | 2nd | - | - | 2nd |
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| 9/5/2021 | Huset's Speedway - Brandon, SD C & B Power Series Nationals 360 Sprints - Winged: Midwest Sprint Touring Series with Midwest Power Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series | Results | | Mike Mueller (360 Sprints - Non-Winged) | 4th | - | - | 4th |
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| 9/6/2021 | Huset's Speedway - Brandon, SD C & B Power Series Nationals - $10,000 to Win 360 Sprints - Winged: Midwest Sprint Touring Series with Midwest Power Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series | Results | | Mike Mueller (360 Sprints - Non-Winged) | 8th | - | - | 8th |
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| 9/9/2021 | Gondik Law Speedway - Superior, WI Northern Nationals-Night #1 305 Sprints - Non-Winged, WISSOTA Midwest Mods, WISSOTA Pure Stock, WISSOTA Street Stock, WISSOTA Hornet | Results | | Mike Mueller (305 Sprints - Non-Winged) | 4th | - | - | 8th |
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| 9/11/2021 | Cedar Lake Speedway - New Richmond, WI Jerry Richert Memorial 360 Sprints - Winged: Midwest Power Series 410 Sprints - Winged: IRA Interstate Racing Association 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series 305 Sprints - Non-Winged | Results | | Mike Mueller (305 Sprints - Non-Winged) | 5th | - | - | 3rd |
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| 9/16/2021 | Cedar Lake Speedway - New Richmond, WI 16th Annual Legendary 100 Night 1 Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Street Stocks, Dirt Late Models, 305 Sprints - Non-Winged, Pony Stock, Super Stocks, Pure Stock, USRA Late Models, WISSOTA Midwest Mods | Results | | Mike Mueller (305 Sprints - Non-Winged) | - | - | - | 3rd |
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| 9/17/2021 | Cedar Lake Speedway - New Richmond, WI 16th Annual Legendary 100 Night 2 Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Street Stocks, Dirt Late Models, 305 Sprints - Non-Winged, Pony Stock, Super Stocks, Pure Stock, USRA Late Models, WISSOTA Midwest Mods | Results | | Mike Mueller (305 Sprints - Non-Winged) | - | - | - | 6th |
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| 9/18/2021 | Cedar Lake Speedway - New Richmond, WI 16th Annual Legendary 100 Night 3 Limited Sprints - Winged: Upper Midwest Sprint Car Series 360 Sprints - Non-Winged: UMSS - Traditional Sprint Car Series A Modifieds, Midwest Modifieds, Street Stocks, Dirt Late Models, 305 Sprints - Non-Winged, Pony Stock, Super Stocks, Pure Stock, USRA Late Models, WISSOTA Midwest Mods | Results | | Mike Mueller (305 Sprints - Non-Winged) | - | - | - | 1st |
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