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| 1/9/2021 | Tri City Speedway - Granite City, IL "Clash at the Coliseum" Indoor Winter Series Race #2 -Saturday @ the National Equestrian Center Winged Outlaw, Rookie Class, Junior 2 Animal Dirt Karts, Restricted Box Stock, Flat RWYB, 500 Winged Open Outlaw, Kid Karts Dirt, Clone Heavy Dirt Karts, Clone Medium Dirt Karts, Clone Super Heavy Dirt Karts, Cage Jr. Predator, LO 206 Cage Junior 1 Winged, Flat Jr. 1 Clone, Predator Maxxis | Results | | Brexton Busch (LO 206 Cage Junior 1 Winged) | 4th | - | - | 10th |
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| 1/10/2021 | Tri City Speedway - Granite City, IL "Clash at the Coliseum" Indoor Winter Series Race #2 -Sunday @ the National Equestrian Center Winged Outlaw, Rookie Class, Junior 2 Animal Dirt Karts, Restricted Box Stock, Unrestricted Box Stock, Flat RWYB, 500 Winged Open Outlaw, Kid Karts Dirt, Clone Heavy Dirt Karts, Clone Medium Dirt Karts, Clone Super Heavy Dirt Karts, Cage Jr. Predator, LO 206 Cage Junior 1 Winged, Flat Jr. 1 Clone, Predator Maxxis | Results | | Brexton Busch (LO 206 Cage Junior 1 Winged) | 1st | - | - | 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 | | Brexton Busch (Junior Class) | 6th | - | - | 10th |
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| 7/30/2021 | English Creek Speedway - Knoxville, IA POINTS RACE #11 Winged Outlaw, Adult Heavy, Adult Medium, Restricted Box Stock, Unrestricted Box Stock, 500 Winged Open Outlaw | Rain Out |
| 7/31/2021 | Newton Kart Klub - Newton, IA NKK Points Night #8 Winged Outlaw, Junior Class, Junior Champ, Junior 1 Lites Dirt Karts, Junior 1 Medium Dirt Karts, Junior 2 Lites Dirt Karts, Junior 2 Medium Dirt Karts, Animal Lites, Junior Open, Rookie Class, Junior 1 Animal Dirt Karts, Junior 2 Animal Dirt Karts, Cage Jr. 1 Clone, Cage Jr. 2 Clone, Flat Adult Clone, Open Speedway Midget, Restricted Box Stock, Unrestricted Box Stock, 125 Yamaha, Cage Stock Animal, 250 Winged Outlaw Heavy, 250 Winged Outlaw, 500 Winged Open Outlaw, Junior 3 Heavy Dirt Karts, Quad A Class | Results | | Brexton Busch (Rookie Class) | 4th | - | - | 3rd |
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| 8/1/2021 | Avcom Park Speedway - Avon, IL Kid's Night Take 2 Non-Wing Outlaw, Dirt Cage Kart Junior 1, Flat Adult Clone, Restricted Box Stock, Unrestricted Box Stock, 250 Winged Outlaw, 500 Winged Open Outlaw, Pony Stock, Flat Jr. 2 Clone Heavy, Flat Jr. 1 Clone, Predator Maxxis | Results | | Brexton Busch (Restricted Box Stock) | 2nd | - | - | 1st | | Brexton Busch (Unrestricted Box Stock) | 5th | - | - | 3rd |
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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 | | Brexton Busch (Junior Class) | 1st | - | - | 5th |
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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 | | Brexton Busch (Junior Class) | 2nd | - | - | 4th |
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| 8/9/2021 | English Creek Speedway - Knoxville, IA 2021 OUTLAW DIRT KART NATIONALS Winged Outlaw, Adult Heavy, Adult Medium, Restricted Box Stock, Unrestricted Box Stock, 500 Winged Open Outlaw | Results | | Brexton Busch (Restricted Box Stock) | 8th (DNF) | - | - | - |
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| 8/10/2021 | English Creek Speedway - Knoxville, IA 2021 OUTLAW DIRT KART NATIONALS Winged Outlaw, Adult Heavy, Adult Medium, Restricted Box Stock, Unrestricted Box Stock, 500 Winged Open Outlaw | Results | | Brexton Busch (Restricted Box Stock) | - | - | 3rd | 5th |
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| 10/14/2021 | Lemoore Jet Bowl - Lemoore, CA CAL CUP Junior Sprints: California Cup Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, 1200cc Outlaws Winged Minis, Sportsman Micros | Results | | Brexton Busch (Junior Sprints) | 3rd | - | - | 8th |
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| 10/15/2021 | Lemoore Jet Bowl - Lemoore, CA CAL CUP Junior Sprints: California Cup Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, 1200cc Outlaws Winged Minis, Sportsman Micros | Results | | Brexton Busch (Junior Sprints) | 2nd | - | - | 5th |
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| 10/16/2021 | Lemoore Jet Bowl - Lemoore, CA CAL CUP Junior Sprints: California Cup Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, 1200cc Outlaws Winged Minis, Sportsman Micros | Results | | Brexton Busch (Junior Sprints) | - | - | - | 9th |
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| 12/28/2021 | Tulsa Expo Raceway - Tulsa, OK PM: Practice Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints | Results | | Brexton Busch (Junior Sprints) | - | - | - | - |
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| 12/30/2021 | Tulsa Expo Raceway - Tulsa, OK Races Non-Wing Outlaw, Winged A-Class, Stock Non-Wing, Junior Sprints | Results | | Brexton Busch (Junior Sprints) | 5th | - | - | - |
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