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| 5/8/2021 | Dells Raceway Park - Wisconsin Dells, WI Midwest Lifestyles Construction 59th Season Opener 6pm Asphalt Late Models, Midwest Modifieds, Bandits, Asphalt Sportsman Late Models | Results | | Kevin Retzlaff (Asphalt Late Models) | 5th | - | 8th | - |
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| 5/15/2021 | Dells Raceway Park - Wisconsin Dells, WI Full Program-Weekly Racing Divisions 6pm Asphalt Late Models, Bandits, Pro Legends, Asphalt Sportsman Late Models | Results | | Kevin Retzlaff (Asphalt Late Models) | 6th | - | 8th | - |
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| 5/20/2021 | Wisconsin Int. Raceway - Kaukauna, WI Season Opener - X-Bar/Exterior Custom Solutins Asphalt Late Models, Asphalt Super Late Models, Stock Cars, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 2nd | - | - | 11th |
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| 5/22/2021 | Dells Raceway Park - Wisconsin Dells, WI Southern Aprons Challenge Night-Tribute to Johnny Ziegler-Full Program of Racing 6pm Asphalt Late Models, Midwest Modifieds, Pro Legends, Asphalt Pure Stocks | Results | | Kevin Retzlaff (Asphalt Late Models) | 8th | - | 10th | - |
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| 6/10/2021 | Wisconsin Int. Raceway - Kaukauna, WI THE RED RACE - Presented by Ken's Sports Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 6th | - | - | 16th |
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| 6/12/2021 | Dells Raceway Park - Wisconsin Dells, WI Gandrud Chevrolet 50-Weekly Racing Divisions 6pm Asphalt Late Models, Bandits, Pro Legends, Asphalt Sportsman Late Models | Results | | Kevin Retzlaff (Asphalt Late Models) | 4th | - | - | 18th |
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| 6/17/2021 | Wisconsin Int. Raceway - Kaukauna, WI Al Huss Auto Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 3rd | - | - | - |
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| 6/19/2021 | Dells Raceway Park - Wisconsin Dells, WI Apollo Tool Night-CWRA Super Late Models 6pm Asphalt Late Models, Stock Cars, Midwest Modifieds, Bandits, Asphalt Mini Trucks | Results | | Kevin Retzlaff (Asphalt Late Models) | 1st | - | - | 19th |
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| 7/1/2021 | Wisconsin Int. Raceway - Kaukauna, WI Les Stumpf Ford 100 year Fireworks night Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks | Results | | Kevin Retzlaff (Asphalt Late Models) | 10th | - | - | 11th |
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| 7/8/2021 | Wisconsin Int. Raceway - Kaukauna, WI WHITE RACE - Presented by Vanderloop Equipment Asphalt Late Models, Asphalt Super Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 3rd | - | - | 10th |
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| 7/10/2021 | Dells Raceway Park - Wisconsin Dells, WI Blystone Towing & Recovery 50-Weekly Racing Division 6pm Presented by Assembly Products Asphalt Late Models, Midwest Modifieds, Bandits, Asphalt Sportsman Late Models, Generic 1 | Results | | Kevin Retzlaff (Asphalt Late Models) | 4th | - | 6th | - |
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| 7/15/2021 | Wisconsin Int. Raceway - Kaukauna, WI Kurz Industrial Night - Big Wheel Races Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 8th | - | - | 10th |
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| 7/22/2021 | Wisconsin Int. Raceway - Kaukauna, WI VETERANS NIGHT - Presented by Bricco Services Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 8th | - | - | 13th |
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| 7/24/2021 | Dells Raceway Park - Wisconsin Dells, WI Incredible Cars of Cross Plains 50-Weekly Racing Divisions 6PM Asphalt Late Models, Midwest Modifieds, Bandits, Generic 1, Junior 2 Animal Asphalt Karting | Results | | Kevin Retzlaff (Asphalt Late Models) | 5th | - | 12th | - |
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| 7/29/2021 | Wisconsin Int. Raceway - Kaukauna, WI Werner Electric supply Night Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 4th | - | - | 9th |
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| 7/31/2021 | Dells Raceway Park - Wisconsin Dells, WI Assembly Products Shootout $5000 to Win Late Models, INEX Legend Regionals-C.O.P.S. & Sportsman 6pm Asphalt Late Models, Pro Legends, Asphalt Sportsman Late Models | Results | | Kevin Retzlaff (Asphalt Late Models) | 7th | - | 6th | - |
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| 8/5/2021 | Wisconsin Int. Raceway - Kaukauna, WI Stan Grcyalny night - Appleton Breakfast Rotary Club Night Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 6th | - | - | - |
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| 8/19/2021 | Wisconsin Int. Raceway - Kaukauna, WI Pierce Manufacturing Customer Appreciation Night Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 4th | - | - | 7th |
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| 8/21/2021 | Dells Raceway Park - Wisconsin Dells, WI SIX08 Graphics Late Model 50-5 Divisions of Racing 6pm Asphalt Late Models, Midwest Modifieds, Bandits, Pro Legends, Junior 2 Animal Asphalt Karting | Results | | Kevin Retzlaff (Asphalt Late Models) | 4th | - | 7th | - |
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| 9/2/2021 | Wisconsin Int. Raceway - Kaukauna, WI Fan Appreciation Night - Presented by Valley Liquor Asphalt Late Models, Asphalt Super Late Models, Asphalt Sportsman Late Models, Asphalt 4-Cylinders, Asphalt Figure 8 Stock Cars, Asphalt Mini Trucks, Super Stocks, Asphalt Bombers | Results | | Kevin Retzlaff (Asphalt Late Models) | 5th | - | - | 12th |
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| 9/11/2021 | Dells Raceway Park - Wisconsin Dells, WI Kalahari Resorts 2021 Season Championship Night Asphalt Late Models, Midwest Modifieds, Bandits, Pro Legends, Asphalt Sportsman Late Models | Results | | Kevin Retzlaff (Asphalt Late Models) | 2nd | - | 14th | - |
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| 9/24/2021 | Dells Raceway Park - Wisconsin Dells, WI Midwest Championship Weekend Friday Dave Rottiger Memorial Asphalt Late Models, Stock Cars, Midwest Modifieds, Bandits, Pro Legends, Asphalt Sportsman Late Models | Rain Out |
| 9/25/2021 | Dells Raceway Park - Wisconsin Dells, WI Midwest Championship Weekend Saturday Presented by DRM Companies Asphalt Late Models, Stock Cars, Midwest Modifieds, Bandits, Pro Legends, Asphalt Pure Stocks | Results | | Kevin Retzlaff (Asphalt Late Models) | - | - | 5th | 17th |
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| 10/23/2021 | Dells Raceway Park - Wisconsin Dells, WI Falloween 150 Alive for 5 Race #5 2pm Asphalt Super Late Models, Asphalt Pro Trucks, Asphalt Sport Mods | Results | | Kevin Retzlaff (Asphalt Super Late Models) | 8th | - | 9th | - |
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