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| 5/15/2019 | Thunder Hill Speedway - Menomonie, WI Racing All Access Night! Season Opener! Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (Junior Sportsman Dirt Karts) | 6th | - | - | 10th |
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| 5/29/2019 | Thunder Hill Speedway - Menomonie, WI Synergy Co-op Night Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (Junior Sportsman Dirt Karts) | 1st | - | - | 2nd |
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| 6/5/2019 | Thunder Hill Speedway - Menomonie, WI D & J Mini Warehouse Night Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (Junior Sportsman Dirt Karts) | 3rd | - | - | 2nd |
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| 6/12/2019 | Thunder Hill Speedway - Menomonie, WI Cody Plumbing Night! Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (Junior Sportsman Dirt Karts) | 1st | - | - | 1st |
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| 6/19/2019 | Thunder Hill Speedway - Menomonie, WI Red Cedar Speedway Night! Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (Junior Sportsman Dirt Karts) | 2nd | - | - | 2nd |
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| 7/3/2019 | Thunder Hill Speedway - Menomonie, WI 2019 Advance Auto Parts Outlaw Kart Nationals! Night 1 Winged A-Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (Junior Sportsman Dirt Karts) | 2nd | - | 1st | 3rd |
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| 7/4/2019 | Thunder Hill Speedway - Menomonie, WI 2019 Advance Auto Parts Outlaw Kart Nationals! Night 2! Winged A-Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (Junior Sportsman Dirt Karts) | 3rd | - | 2nd | 2nd |
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| 7/17/2019 | Thunder Hill Speedway - Menomonie, WI Otter Acres Plaques and Trophies Night! Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (Junior Sportsman Dirt Karts) | 3rd | - | - | 2nd |
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| 7/26/2019 | English Creek Speedway - Knoxville, IA 7/26/19 Points Race #10 W/Micros Winged A-Class: Iowa Micro Sprint Car Series Winged Outlaw, Winged Outlaw, Adult Medium, Restricted Box Stock, Unrestricted Box Stock, 250 Winged Outlaw Heavy, 500 Winged Open Outlaw | Results | | Mason Seubert (250 Winged Outlaw Heavy) | 6th | - | - | 1st | | Mason Seubert (500 Winged Open Outlaw) | 2nd | - | - | 5th |
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| 7/31/2019 | Thunder Hill Speedway - Menomonie, WI T & T Construction Night! Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (500 Winged Open Outlaw) | 3rd | - | - | 9th | | Mason Seubert (Junior Sportsman Dirt Karts) | 3rd | - | - | 12th |
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| 8/5/2019 | English Creek Speedway - Knoxville, IA 8/5/19 Outlaw Dirt Kart Nationals Night 1 Winged Outlaw, Adult Medium, Restricted Box Stock, Unrestricted Box Stock, 250 Winged Outlaw Heavy, 500 Winged Open Outlaw | Results | | Mason Seubert (250 Winged Outlaw Heavy) | - | - | - | - | | Mason Seubert (500 Winged Open Outlaw) | 2nd | - | - | - |
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| 8/6/2019 | English Creek Speedway - Knoxville, IA 8/6/19 Outlaw Dirt Kart Nationals Night 2 Winged Outlaw, Adult Medium, Restricted Box Stock, Unrestricted Box Stock, 250 Winged Outlaw Heavy, 500 Winged Open Outlaw | Results | | Mason Seubert (500 Winged Open Outlaw) | - | 2nd | - | 16th (DNF) |
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| 8/14/2019 | Thunder Hill Speedway - Menomonie, WI Bill's Distributing Night! Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (500 Winged Open Outlaw) | 2nd | - | - | 12th | | Mason Seubert (Junior Sportsman Dirt Karts) | 5th | - | - | 12th |
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| 8/21/2019 | Thunder Hill Speedway - Menomonie, WI Timber Inn Bar & Grill Night! Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (500 Winged Open Outlaw) | 5th | - | - | 9th | | Mason Seubert (Junior Sportsman Dirt Karts) | 1st | - | - | 1st |
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| 8/28/2019 | Thunder Hill Speedway - Menomonie, WI Dunn Energy Co-op Night! Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | | Mason Seubert (500 Winged Open Outlaw) | 1st | - | - | 7th | | Mason Seubert (Junior Sportsman Dirt Karts) | 1st | - | - | 7th |
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