| | Heat | Dash | B Feature | A Feature |
|---|
|
|---|
| 4/2/2021 | Marshalltown Speedway - Marshalltown, IA 141 Speedway / Left Turn Lounge IMCA FrostBuster IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Seth Janssen (IMCA Hobby Stock) | 9th (DNF) | - | DNS | - |
|
| 4/3/2021 | Boone Speedway - Boone, IA IMCA Frostbuster IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Seth Janssen (IMCA Hobby Stock) | 2nd | - | - | 9th |
|
| 4/10/2021 | Boone Speedway - Boone, IA Season Opener IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 5th | - | - | 14th |
|
| 5/15/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #5 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 6th | - | - | 6th |
|
| 5/22/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #6 Dirt Mini Trucks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 5th | - | - | 6th |
|
| 5/29/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #7 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 6th | - | 2nd | 10th |
|
| 6/5/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #8 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 5th (DNF) | - | - | 4th |
|
| 6/12/2021 | Boone Speedway - Boone, IA Saturday Night Series #9 + IMCA Weekly Points – $500 to win Stock Cars IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 7th | - | - | 18th (DNF) |
|
| 6/19/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #10 Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 2nd | - | - | 9th |
|
| 6/26/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #11 + Hawkeye Challenge Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 7th | - | - | 15th |
|
| 7/3/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #12 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 1st | - | - | 14th |
|
| 7/17/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #14 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 4th | - | - | 20th (DNF) |
|
| 7/24/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #15 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 8th | - | 2nd | 14th |
|
| 7/31/2021 | Boone Speedway - Boone, IA Salute to Veterans/Saturday Night Series Weekly #16 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 4th | - | - | 12th |
|
| 8/7/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #17 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 5th | - | - | 9th |
|
| 8/14/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #18 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 8th (DNF) | - | 3rd | 11th |
|
| 8/21/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #19 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 1st | - | - | 5th |
|
| 8/28/2021 | Boone Speedway - Boone, IA Season Championship IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | - | - | - | 8th |
|
| 9/5/2021 | Boone Speedway - Boone, IA Wild Rose Casino Prelude to the Super Nationals IMCA Northern SportMod, IMCA Hobby Stock, IMCA Sport Compact, Pro Dwarf, IMCA Mod Lite | Results | | Seth Janssen (IMCA Hobby Stock) | 4th | - | 7th | - |
|
| 9/6/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Late Models, IMCA Northern SportMod, IMCA Hobby Stock | Results | | Seth Janssen (IMCA Hobby Stock) | 2nd | - | - | 14th |
|
| 9/7/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s Vintage Modifieds, Generic 1, IMCA Northern SportMod, IMCA Hobby Stock, IMCA Sport Compact | Results | | Seth Janssen (IMCA Hobby Stock) | 5th | - | 1st | - |
|
| 9/8/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Seth Janssen (IMCA Hobby Stock) | - | - | - | 13th |
|