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6/9/2021 | Thunder Hill Speedway - Menomonie, WI 2021 Season Opener Synergy Co-op Night "Storm Series Event" Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 7th | - | - | 6th |
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6/23/2021 | Thunder Hill Speedway - Menomonie, WI 2021 Season Opener Cody Plumbing Night "Storm Series Event" Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 6th | - | - | 8th |
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7/21/2021 | Thunder Hill Speedway - Menomonie, WI 2021 T & T Construction Night "Storm Series Event" Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 5th | - | - | 9th |
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8/3/2021 | Thunder Hill Speedway - Menomonie, WI OUTLAW NATIONALS RACE DAY 1 Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 7th | - | - | 14th |
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8/4/2021 | Thunder Hill Speedway - Menomonie, WI OUTLAW NATIONALS RACE DAY 2 Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 6th | - | - | 11th |
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8/18/2021 | Thunder Hill Speedway - Menomonie, WI 2021 Timber Inn Bar and Grill Night "Storm Series Event" Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 2nd | - | - | 2nd |
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9/1/2021 | Thunder Hill Speedway - Menomonie, WI 2021 Dunn Energy Co-op Night "Storm Series Event" Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 4th | - | - | 5th |
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9/10/2021 | Thunder Hill Speedway - Menomonie, WI 2021 WI Dirt Track State Championships! Night 1 Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 2nd | - | - | 2nd |
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9/11/2021 | Thunder Hill Speedway - Menomonie, WI 2021 WI Dirt Track State Championships! Junior Class, Rookie Class, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior Sportsman Dirt Karts, Cage Jr. 206 A | Results | Zachary Shackleton (Junior Sportsman Dirt Karts) | 3rd | - | - | 4th |
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