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| 2/23/2023 | Thunder Valley Speedway (LA) - Glenmora, LA Practice Night 2nd Annual Darty Smith Memorial Dirt Super Late Models, B Modifieds, Street Stocks, Hornets, USRA Limited Mods, USRA Factory Stocks | Results | | Mark Underwood Jr (Dirt Super Late Models) | - | - | - | - |
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| 2/24/2023 | Thunder Valley Speedway (LA) - Glenmora, LA 2nd Annual Darty Smith Memorial Dirt Super Late Models, B Modifieds, Street Stocks, Hornets, USRA Limited Mods, USRA Factory Stocks | Results | | Mark Underwood Jr (Dirt Super Late Models) | 4th | - | - | - |
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| 2/25/2023 | Thunder Valley Speedway (LA) - Glenmora, LA 2nd Annual Darty Smith Memorial Dirt Super Late Models, B Modifieds, Street Stocks, Hornets, USRA Limited Mods, USRA Factory Stocks | Results | | Mark Underwood Jr (Dirt Super Late Models) | - | 3rd | - | 1st |
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| 3/3/2023 | Texana Raceway Park - Edna, TX 604 Crate Late Models: All Star Crate Late Model Series Factory Stocks, Limited Sport Mod, Pure Stock, Dirt Crate Late Models | Results | | Mark Underwood Jr (Factory Stocks) | 4th | - | - | - |
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| 3/4/2023 | Texana Raceway Park - Edna, TX 604 Crate Late Models: All Star Crate Late Model Series Factory Stocks, A Modifieds, Limited Sport Mod, Pure Stock, Dirt Crate Late Models | Results | | Mark Underwood Jr (Factory Stocks) | - | - | - | 9th |
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| 4/1/2023 | Cochran Motor Speedway - Cochran, GA Cochran Motor Speedway - $10,000 to Win CRUSA Dirt Late Models: Crate Racin' USA Dirt Late Model Series Dirt Super Late Models, Sportsmans, Super Sports, Street Stocks, Economy Late Models, Enduro, Dirt Mini Late Models, DIRTcar Sportsman Modifieds, Crown Vic, 602 Crate Late Models, 604 Crate Late Models | Results | | Mark Underwood Jr (CRUSA Dirt Late Models) | 5th | - | 1st | 20th |
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| 4/22/2023 | Boothill Speedway - Greenwood, LA 360 Sprints - Winged: ASCS National with ASCS Mid-South Region Midgets, Hobby Stocks, B Modifieds, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Factory Stocks) | 2nd | - | - | 7th |
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| 4/28/2023 | Boothill Speedway - Greenwood, LA Autism Awareness Night Hobby Stocks, Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (Dirt Late Models) | 1st | - | - | 1st | | Mark Underwood Jr (USRA Factory Stocks) | 3rd | - | - | 8th |
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| 5/6/2023 | Whynot Motorsports Park - Meridian, MS Whynot Motorsports Park - "House of Hook 50" CRUSA Dirt Late Models: Crate Racin' USA Dirt Late Model Series Factory Stocks, A Modifieds, Enduro, CRUSA Street Stocks, CRUSA Late Model Sportsman | Results | | Mark Underwood Jr (CRUSA Dirt Late Models) | - | - | - | 11th |
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| 5/13/2023 | Boothill Speedway - Greenwood, LA Fan Appreciation - Crate LMs, FS, Lim Mods, Sportsters, Tuners Hobby Stocks, B Modifieds, Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Factory Stocks) | 2nd | - | 5th | 4th |
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| 5/20/2023 | Super Bee Speedway - Chatham, LA Heroes Race & Powder Puff Mother's Day Celebration Race Sportsmans, B Modifieds, Street Stocks, Hornets, CRUSA Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Limited Mods) | 9th (DNF) | - | - | 15th (DNF) | | Mark Underwood Jr (USRA Factory Stocks) | 7th (DNF) | - | - | 2nd |
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| 5/26/2023 | Sabine Speedway - Many, LA Triple Crown Throwdown Memorial Day Special USRA Limited Mods: Triple Crown Throwdown Stock Cars, Sportsmans, Asphalt Pure Stocks, Dirt Crate Late Models, USRA Factory Stocks | Results | | Mark Underwood Jr (USRA Factory Stocks) | 4th | - | - | 8th |
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| 5/27/2023 | Boothill Speedway - Greenwood, LA ASCS Elite Non-Wing Sprint Cars + FS, Lim Mod, Pro Mods, Sportsters, Tuners Hobby Stocks, B Modifieds, 305 Sprints - Non-Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Factory Stocks) | 2nd | - | - | 4th |
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| 5/28/2023 | Ark-La-Tex Speedway - Vivian, LA B Modifieds, 305 Sprints - Non-Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Factory Stocks) | 1st | - | - | 9th |
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| 6/3/2023 | Talladega Short Track - Eastaboga, AL $10,000 to win CRUSA Late Models + Full Racing Program CRUSA Dirt Late Models: Crate Racin' USA Dirt Late Model Series Sport Compact, Pure Stock, CRUSA Modified Sportsman, CRUSA Late Model Sportsman, Dirt Limited Late Models | Results | | Mark Underwood Jr (CRUSA Dirt Late Models) | 5th | - | 5th | - |
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| 7/8/2023 | Boothill Speedway - Greenwood, LA 410 Sprints - Winged: ASCS Elite Outlaw Sprints Hobby Stocks, B Modifieds, Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Rain Out |
| 7/15/2023 | Super Bee Speedway - Chatham, LA Wheelbarrow Race ~ Fan Appreciation Sportsmans, B Modifieds, Street Stocks, CRUSA Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Factory Stocks) | 2nd | - | - | 3rd |
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| 7/27/2023 | Boothill Speedway - Greenwood, LA 9th Annual King of the Hill - Practice Night Hobby Stocks, B Modifieds, Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Factory Stocks) | - | - | - | - |
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| 7/28/2023 | Boothill Speedway - Greenwood, LA 9th Annual King of the Hill - Night #1 Hobby Stocks, B Modifieds, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Factory Stocks) | 1st | - | - | - |
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| 7/29/2023 | Boothill Speedway - Greenwood, LA 9th Annual King of the Hill - $10,000 To-Win Factory Srock Dirt Late Models, USRA Limited Mods, USRA Factory Stocks | Results | | Mark Underwood Jr (Dirt Late Models) | 2nd | - | - | 5th | | Mark Underwood Jr (USRA Factory Stocks) | - | - | 2nd | 7th |
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| 8/12/2023 | Super Bee Speedway - Chatham, LA Freddy Cook Memorial Sportsmans, B Modifieds, Street Stocks, CRUSA Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (CRUSA Dirt Late Models) | 3rd | - | - | 5th | | Mark Underwood Jr (USRA Factory Stocks) | 4th (DNF) | - | - | 10th |
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| 8/19/2023 | Boothill Speedway - Greenwood, LA Fan Appreciation Night Hobby Stocks, B Modifieds, Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (Dirt Late Models) | 2nd | - | - | 1st |
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| 9/1/2023 | Super Bee Speedway - Chatham, LA Factory Stock Showdown & Comp Cams Dirt Super Late Models: COMP Cams Super Dirt Series (CCSDS) Sportsmans, B Modifieds, USRA Factory Stocks | Results | | Mark Underwood Jr (Dirt Super Late Models) | 3rd | - | - | 17th | | Mark Underwood Jr (USRA Factory Stocks) | 1st | - | - | - |
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| 9/2/2023 | Super Bee Speedway - Chatham, LA Factory Stock Showdown Street Stocks, CRUSA Dirt Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (CRUSA Dirt Late Models) | 3rd | - | - | 6th | | Mark Underwood Jr (USRA Factory Stocks) | - | - | - | 1st |
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| 9/9/2023 | Boothill Speedway - Greenwood, LA Dirt Super Late Models: COMP Cams Super Dirt Series (CCSDS) Hobby Stocks, B Modifieds, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (Dirt Super Late Models) | 5th | - | 4th | - | | Mark Underwood Jr (USRA Factory Stocks) | 8th | - | 12th | - |
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| 9/16/2023 | Sabine Speedway - Many, LA Fall Southern Showdown Sportsmans, Asphalt Pure Stocks, USRA Limited Mods, USRA Factory Stocks | Results | | Mark Underwood Jr (USRA Factory Stocks) | 1st | - | - | 4th |
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| 9/29/2023 | Greenville Speedway - Greenville, MS 17th Annual Gumbo Nationals Dirt Super Late Models, Factory Stocks, CRUSA Street Stocks, Dirt Crate Late Models, Dirt 6-cyl Stock Cars, 602 Crate Late Models | Results | | Mark Underwood Jr (Dirt Crate Late Models) | - | - | - | - |
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| 9/30/2023 | Greenville Speedway - Greenville, MS 17th Annual Gumbo Nationals 360 Sprints - Winged, Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, CRUSA Street Stocks, Dirt Crate Late Models, 602 Crate Late Models | Results | | Mark Underwood Jr (Dirt Crate Late Models) | - | - | - | 6th |
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| 10/6/2023 | Ark-La-Tex Speedway - Vivian, LA 19th Annual Cajun Classic & Billy Melton Memorial B Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Mark Underwood Jr (USRA Factory Stocks) | 2nd | - | - | - |
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| 10/7/2023 | Ark-La-Tex Speedway - Vivian, LA 19th Annual Cajun Classic & Billy Melton Memorial B Modifieds, Pure Stock, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (USRA Factory Stocks) | - | - | - | 17th |
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| 10/14/2023 | Sabine Speedway - Many, LA Championship Sportsmans, Asphalt Pure Stocks, Dirt Crate Late Models, USRA Limited Mods, USRA Factory Stocks | Results | | Mark Underwood Jr (Dirt Crate Late Models) | 3rd | - | - | 5th |
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| 10/20/2023 | Super Bee Speedway - Chatham, LA 30th Annual Spooky 50 featuring Comp Cams Dirt Super Late Models: COMP Cams Super Dirt Series (CCSDS) Sportsmans, B Modifieds, Street Stocks, Dirt Crate Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (Dirt Crate Late Models) | 1st | - | - | - | | Mark Underwood Jr (USRA Limited Mods) | 6th | - | - | - | | Mark Underwood Jr (USRA Factory Stocks) | 5th | - | - | - |
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| 10/21/2023 | Super Bee Speedway - Chatham, LA 30th Annual Spooky 50 featuring Comp Cams Dirt Super Late Models: COMP Cams Super Dirt Series (CCSDS) Sportsmans, B Modifieds, Street Stocks, Dirt Crate Late Models, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (Dirt Crate Late Models) | 1st | - | - | 1st | | Mark Underwood Jr (USRA Limited Mods) | - | - | DNS | - | | Mark Underwood Jr (USRA Factory Stocks) | - | - | - | 2nd |
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| 11/3/2023 | Magnolia Motor Speedway - Columbus, MS Magnolia Motor Speedway- Qualifying and Heat Races CRUSA Dirt Late Models: Crate Racin' USA Dirt Late Model Series Factory Stocks, Hornets, CRUSA Street Stocks, CRUSA Modified Sportsman, CRUSA Late Model Sportsman | Results | | Mark Underwood Jr (CRUSA Dirt Late Models) | 7th | - | - | - |
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| 11/4/2023 | Magnolia Motor Speedway - Columbus, MS Magnolia Motor Speedway - B-Mains and Feature CRUSA Dirt Late Models: Crate Racin' USA Dirt Late Model Series Factory Stocks, Hornets, CRUSA Street Stocks, CRUSA Modified Sportsman, CRUSA Late Model Sportsman | Results | | Mark Underwood Jr (CRUSA Dirt Late Models) | - | - | 4th | - |
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| 11/25/2023 | Boothill Speedway - Greenwood, LA "The Grandaddy" - Ray Ingalls Memorial Hobby Stocks, B Modifieds, Dirt Late Models, CRUSA Dirt Late Models, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Mark Underwood Jr (Dirt Late Models) | 3rd | - | - | 3rd |
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