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| 3/26/2021 | Thunderbird Speedway - Muskogee, OK Okie Dirt Classic Dirt Super Late Models: Sooner Late Model Series Hobby Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 5th | - | 2nd | 12th |
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| 3/27/2021 | Thunderbird Speedway - Muskogee, OK Okie Dirt Classic Dirt Super Late Models: Sooner Late Model Series Hobby Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 4th | - | - | 12th |
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| 4/3/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP - SEASON OPENER Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 3rd | - | - | 12th |
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| 4/10/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP - EASTER EGG SCRAMBLE Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 5th | - | 5th | 13th |
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| 4/25/2021 | Thunderbird Speedway - Muskogee, OK Azalea Nationals Dirt Super Late Models, Hobby Stocks, A Modifieds, B Modifieds | Results | | Billy Arnold (B Modifieds) | 3rd | - | - | 14th (DNF) |
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| 4/30/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly program Dirt Super Late Models, Factory Stocks, Midwest Modifieds, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 3rd | - | - | 6th |
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| 5/1/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP AND CASH MONEY LATE MODELS Dirt Late Models: 4 State Dirt Late Model Series Hobby Stocks, A Modifieds, B Modifieds | Results | | Billy Arnold (B Modifieds) | 1st | - | - | 16th |
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| 5/7/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly program Factory Stocks, Midwest Modifieds, Hornets, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 7th (DNF) | - | - | 14th (DNF) |
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| 5/29/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 4th | - | 8th (DNF) | - |
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| 6/4/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly program Dirt Late Models: 4 State Dirt Late Model Series Factory Stocks, Midwest Modifieds, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 5th | - | - | 6th |
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| 6/5/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP - KIDS NIGHT Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 3rd | - | - | 7th |
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| 6/11/2021 | Outlaw Motor Speedway - Oktaha, OK First Responders plus weekly program Factory Stocks, Midwest Modifieds, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 3rd | - | - | 7th |
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| 6/12/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP - PIT CREW CHALLENGE Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 6th | - | - | 8th |
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| 6/19/2021 | Salina Highbanks Speedway - Salina, OK 8th ANNUAL FREEDOM CLASSIC - MLRA Dirt Super Late Models: Lucas Oil MLRA Hobby Stocks, B Modifieds | Results | | Billy Arnold (B Modifieds) | 4th | - | - | 2nd |
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| 6/25/2021 | Outlaw Motor Speedway - Oktaha, OK Dirt Super Late Models, Factory Stocks, Midwest Modifieds, Dwarf, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 3rd | - | - | 8th |
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| 7/9/2021 | Outlaw Motor Speedway - Oktaha, OK Champ 360 Sprints - Winged: Oil Capital Racing Series Factory Stocks, Midwest Modifieds, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 5th | - | - | 10th |
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| 7/23/2021 | Outlaw Motor Speedway - Oktaha, OK Full Moon Friday!! All weekly classes Factory Stocks, Midwest Modifieds, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 3rd | - | - | 7th |
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| 7/24/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP Buddy's Presents Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 1st | - | - | 9th |
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| 7/31/2021 | Outlaw Motor Speedway - Oktaha, OK ASCS Sprint Week - Night 8 360 Sprints - Winged: ASCS National Sprint Cars, Factory Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | DNS | - | - | 8th (DNF) |
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| 7/31/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 2nd | - | - | 5th |
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| 8/6/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly Classes Dirt Super Late Models, Factory Stocks, Midwest Modifieds, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 3rd | - | - | 7th |
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| 8/7/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP AND CASH MONEY LATE MODELS Dirt Late Models: 4 State Dirt Late Model Series Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 3rd | - | - | 15th (DNF) |
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| 8/14/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP - BACK TO SCHOOL NIGHT Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 5th | - | 3rd | 11th |
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| 8/20/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly program Factory Stocks, Midwest Modifieds, Dwarf, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 4th | - | - | 9th |
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| 8/21/2021 | Salina Highbanks Speedway - Salina, OK Buddy's Home Furnishings Presents NAAPWS CHAMPIONSHIP - Mechanics Challenge Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 6th | - | - | 8th |
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| 8/28/2021 | Salina Highbanks Speedway - Salina, OK SALUTE TO VETERANS NAAPWS CHAMPIONSHIP Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 6th (DNF) | - | - | 8th |
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| 9/3/2021 | Outlaw Motor Speedway - Oktaha, OK 1st Annual Bmod Battle plus weekly classes Factory Stocks, Midwest Modifieds, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 3rd | - | - | 8th |
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| 9/10/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly program Factory Stocks, Midwest Modifieds, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 4th | - | - | DNS |
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| 9/11/2021 | Salina Highbanks Speedway - Salina, OK NAAPWS CHAMPIONSHIP - POWDER PUFF Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 3rd | - | - | 8th |
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| 9/18/2021 | Salina Highbanks Speedway - Salina, OK 9th ANNUAL SOONER SHOWDOWN - CHAMPIONSHIP NIGHT - PRESENTED BY JOE"S HAND CLEANER Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro | Results | | Billy Arnold (B Modifieds) | 3rd | - | - | 5th |
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| 9/25/2021 | Salina Highbanks Speedway - Salina, OK AmeriFlex Challenge 6 - $3,000 to win / $1,000 to start Champ 360 Sprints - Winged: Oil Capital Racing Series Hobby Stocks, A Modifieds, B Modifieds, Street Stocks | Results | | Billy Arnold (B Modifieds) | 4th | - | - | 5th |
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| 10/9/2021 | Salina Highbanks Speedway - Salina, OK ENDURO EXTRAVAGANZA Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Enduro, Generic 1 | Results | | Billy Arnold (B Modifieds) | 5th | - | - | 12th |
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| 10/16/2021 | Outlaw Motor Speedway - Oktaha, OK Octoberfest Cash Money Late Models,A-mod,B-mod,Factory Stock,Hornets Dirt Late Models: 4 State Dirt Late Model Series Factory Stocks, Hornets, USRA B-Mods, USRA Modifieds | Results | | Billy Arnold (USRA B-Mods) | 8th | - | 6th | 11th |
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