| | Heat | Dash | B Feature | A Feature |
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| 2/11/2021 | Ocala Speedway - Ocala, FL 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Mario Clouser (410 Sprints - Non-Winged) | 5th | - | 4th | 15th |
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| 2/12/2021 | Ocala Speedway - Ocala, FL 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Mario Clouser (410 Sprints - Non-Winged) | 7th | - | 8th | 18th |
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| 4/2/2021 | Lake Ozark Speedway - Eldon, MO 360 Sprints - Winged: ASCS Sooner Region with ASCS Warrior Region Non-Winged Sprints: POWRi WAR Sprints | Results | | Mario Clouser (Non-Winged Sprints) | 2nd | - | - | 2nd |
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| 4/3/2021 | Lake Ozark Speedway - Eldon, MO LOS Spring Nationals 360 Sprints - Winged: ASCS Sooner Region with ASCS Warrior Region Non-Winged Sprints: POWRi WAR Sprints Midgets, Dirt Super Late Models | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 1st |
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| 4/16/2021 | Bloomington Speedway - Bloomington, IN USAC Sprints - Larry RIce 410 Sprints - Non-Winged, IMCA RaceSaver Sprint Car | Results | | Mario Clouser (410 Sprints - Non-Winged) | 5th | - | 4th | 14th |
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| 4/17/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing 305 Sprints - Winged, DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Mario Clouser (410 Sprints - Non-Winged) | 5th | - | 3rd | 9th |
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| 4/24/2021 | Lucas Oil Speedway - Wheatland, MO 360 Sprints - Winged: ASCS Sooner Region with ASCS Warrior Region Midgets: POWRi National Midgets with POWRi West Midgets, POWRi Non-Winged Sprints: POWRi WAR Sprints | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 3rd |
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| 4/25/2021 | Valley Speedway - Grain Valley, MO POWRi Mid-State Nationals Midgets: POWRi National Midgets with POWRi West Midgets, POWRi Non-Winged Sprints: POWRi WAR Sprints | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 9th |
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| 4/30/2021 | I-70 Speedway - Odessa, MO 410 Sprints - Winged: World of Outlaws Non-Winged Sprints: POWRi WAR Sprints Midgets | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 3rd |
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| 5/1/2021 | I-70 Speedway - Odessa, MO 410 Sprints - Winged: World of Outlaws Non-Winged Sprints: POWRi WAR Sprints Midgets | Results | | Mario Clouser (Non-Winged Sprints) | 6th | - | - | 10th |
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| 5/15/2021 | Lincoln Park Speedway - Putnamville, IN Saturday Night Racing DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Mario Clouser (410 Sprints - Non-Winged) | 6th | - | 1st | 12th |
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| 5/21/2021 | Charleston Speedway - Charleston, IL ILLIANA Showdown Midgets: POWRi National Midgets with POWRi Non-Winged Sprints: POWRi WAR Sprints Winged Outlaw | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 1st |
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| 5/22/2021 | Charleston Speedway - Charleston, IL ILLIANA Showdown Midgets: POWRi National Midgets with POWRi Non-Winged Sprints: POWRi WAR Sprints Winged Outlaw | Results | | Mario Clouser (Non-Winged Sprints) | 2nd | - | - | 15th |
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| 5/26/2021 | Terre Haute Action Track - Terre Haute, IN 410 Sprints - Non-Winged: USAC National Sprint Cars DIRTcar UMP Modifieds, Modern Vintage 401cc+ Open | Results | | Mario Clouser (410 Sprints - Non-Winged) | 3rd | - | - | 17th |
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| 6/11/2021 | Charleston Speedway - Charleston, IL POWRi Lucas Oil WAR Sprints at Charleston Speedway Non-Winged Sprints: POWRi WAR Sprints Midgets, Dirt Late Models, Hornets, DIRTcar Pro Modifieds | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 1st |
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| 6/12/2021 | Spoon River Speedway - Canton, IL POWRi Lucas Oil WAR Sprints at Spoon River Speedway Non-Winged Sprints: POWRi WAR Sprints Midgets | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 1st |
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| 6/26/2021 | Lincoln Park Speedway - Putnamville, IN FIREWORKS SPECTACULAR DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Mario Clouser (410 Sprints - Non-Winged) | 3rd | - | - | 9th |
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| 7/1/2021 | Plymouth Speedway - Plymouth, IN USAC Sprints 410 Sprints - Non-Winged: USAC National Sprint Cars Non-Wing Outlaw, Restricted 'A' Class | Results | | Mario Clouser (410 Sprints - Non-Winged) | 1st | - | - | 17th |
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| 7/2/2021 | Lincoln Park Speedway - Putnamville, IN Bill Gardner Sprintacular Night 1 with MSCS/USAC Sprints 410 Sprints - Non-Winged: USAC National Sprint Cars with Midwest Sprint Car Series MSCS DIRTcar UMP Modifieds, Factory Stocks, Super Stocks | Results | | Mario Clouser (410 Sprints - Non-Winged) | 4th | - | - | 13th |
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| 7/3/2021 | Lincoln Park Speedway - Putnamville, IN Bill Gardner Sprintacular Night 2 with MSCS/USAC Sprints Midgets: USAC National Midgets 410 Sprints - Non-Winged: Midwest Sprint Car Series MSCS Lightning Sprints: Midwest Mini Sprint Association | Results | | Mario Clouser (410 Sprints - Non-Winged) | 3rd | - | - | 19th |
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| 7/17/2021 | Valley Speedway - Grain Valley, MO Thunder in the Valley National Powri Midgets/Powri WAR Sprints series Midgets: POWRi National Midgets with POWRi West Midgets, POWRi Non-Winged Sprints: POWRi WAR Sprints Sportsman Sprints | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 11th |
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| 7/23/2021 | Lake Ozark Speedway - Eldon, MO Inaugural Beach Brawl $8,000 to win 410 Sprints - Winged: All Star Circuit of Champions Non-Winged Sprints: POWRi WAR Sprints 305 Sprints - Winged, Midgets | Results | | Mario Clouser (Non-Winged Sprints) | 2nd | - | - | 10th |
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| 7/24/2021 | Lake Ozark Speedway - Eldon, MO Inaugural Beach Brawl $10,000 to win 410 Sprints - Winged: All Star Circuit of Champions Non-Winged Sprints: POWRi WAR Sprints Lightning Sprints: POWRi Midwest Lightning Sprints Midgets | Results | | Mario Clouser (Non-Winged Sprints) | 5th | - | - | 9th |
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| 7/28/2021 | Terre Haute Action Track - Terre Haute, IN 410 Sprints - Non-Winged: USAC National Sprint Cars DIRTcar UMP Modifieds | Results | | Mario Clouser (410 Sprints - Non-Winged) | 7th | - | 4th | 19th |
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| 7/29/2021 | Missouri State Fair Speedway - Sedalia, MO All Star Circuit of Champions 410 Sprints - Winged: All Star Circuit of Champions Non-Winged Sprints: POWRi WAR Sprints Midgets | Results | | Mario Clouser (Non-Winged Sprints) | 4th | - | - | 1st |
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| 8/7/2021 | Valley Speedway - Grain Valley, MO King of Kansas City Non-Winged Sprints: POWRi WAR Sprints Midgets, Midwest Modifieds, IMCA Northern SportMod, Mod Lites | Results | | Mario Clouser (Non-Winged Sprints) | 2nd | - | - | 8th |
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| 8/21/2021 | Lake Ozark Speedway - Eldon, MO POWRi Lucas Oil WAR Sprints at Lake Ozark Speedway Non-Winged Sprints: POWRi WAR Sprints 360 Sprints - Winged, Midgets, Super Stocks, Pure Stock, USRA B-Mods | Results | | Mario Clouser (Non-Winged Sprints) | 3rd | - | - | 1st |
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| 8/27/2021 | Kokomo Speedway - Kokomo, IN Elliott’s Custom Trailers & Carts Sprint Car SmackdownX 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Mario Clouser (410 Sprints - Non-Winged) | 6th | - | 4th | 16th |
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| 8/28/2021 | Kokomo Speedway - Kokomo, IN Elliott’s Custom Trailers & Carts Sprint Car SmackdownX 410 Sprints - Non-Winged: USAC National Sprint Cars Midgets | Results | | Mario Clouser (410 Sprints - Non-Winged) | 3rd | - | 2nd | 19th |
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| 9/10/2021 | Huset's Speedway - Brandon, SD Huset's Speedway USAC Nationals Midgets: USAC National Midgets 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Mario Clouser (410 Sprints - Non-Winged) | 8th | - | - | 15th |
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| 9/11/2021 | Huset's Speedway - Brandon, SD Huset's Speedway USAC Nationals Midgets: USAC National Midgets 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Mario Clouser (410 Sprints - Non-Winged) | 2nd | - | - | 11th |
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| 9/12/2021 | Huset's Speedway - Brandon, SD Huset's Speedway USAC Nationals Midgets: USAC National Midgets 410 Sprints - Non-Winged: USAC National Sprint Cars | Results | | Mario Clouser (410 Sprints - Non-Winged) | 4th | - | - | 13th |
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| 9/16/2021 | Lucas Oil Speedway - Wheatland, MO 360 Sprints - Winged: ASCS National with ASCS Sooner Region, ASCS Warrior Region Non-Winged Sprints: POWRi WAR Sprints | Results | | Mario Clouser (Non-Winged Sprints) | 1st | - | - | 2nd |
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| 9/17/2021 | Lucas Oil Speedway - Wheatland, MO 360 Sprints - Winged: ASCS National with ASCS Sooner Region, ASCS Warrior Region Non-Winged Sprints: POWRi WAR Sprints | Results | | Mario Clouser (Non-Winged Sprints) | 5th | - | 2nd | 5th |
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| 9/18/2021 | Lucas Oil Speedway - Wheatland, MO 360 Sprints - Winged: ASCS National with ASCS Sooner Region, ASCS Warrior Region Non-Winged Sprints: POWRi WAR Sprints | Results | | Mario Clouser (Non-Winged Sprints) | - | - | - | 4th |
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| 9/25/2021 | Lincoln Park Speedway - Putnamville, IN Rescheduled King of Nonwing and Fireworks DIRTcar UMP Modifieds, Factory Stocks, 410 Sprints - Non-Winged, Super Stocks | Results | | Mario Clouser (410 Sprints - Non-Winged) | 1st | - | - | 1st |
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| 10/1/2021 | Terre Haute Action Track - Terre Haute, IN 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Winged, Modern Vintage 401cc+ Open | Results | | Mario Clouser (410 Sprints - Non-Winged) | 4th | - | - | 13th |
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| 10/8/2021 | Jacksonville Speedway - Jacksonville, IL 410 Sprints - Winged: MOWA-Midwest Open Wheel Association 305 Sprints - Winged | Results | | Mario Clouser (410 Sprints - Winged) | 1st | - | - | 17th |
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