| 4/10/2021 | 410 Sprints - Winged: IRA Interstate Racing Association with MOWA-Midwest Open Wheel Association | | Postponed |
| 4/11/2021 | 410 Sprints - Winged: IRA Interstate Racing Association with MOWA-Midwest Open Wheel Association Badger Midgets: Badger Midget Auto Racing Association | | Postponed |
| 4/24/2021 | 410 Sprints - Winged: IRA Interstate Racing Association | | Balog, Nimee, Goldesberry, Thiel, Blackhurst |
| 5/1/2021 | 410 Sprints - Winged: IRA Interstate Racing Association Non Wing Crate Sprints: Wisconsin wingLESS Sprints Lightning Sprints: IRA Lightning Sprints A Modifieds | | Short, Blackhurst, Schlafer, Neitzel, Thiel |
| 5/8/2021 | Spring Sprint Special 410 Sprints - Winged: IRA Interstate Racing Association | | Tatnell, Blackhurst, Thiel, Spitz, Nygaard |
| 5/15/2021 | 410 Sprints - Winged: IRA Interstate Racing Association with All Star Circuit of Champions Non Wing Crate Sprints: Wisconsin wingLESS Sprints | | Reinhardt, Courtney, Eliason, Henry, Balog |
| 5/22/2021 | 410 Sprints - Winged: IRA Interstate Racing Association | | Reinke, Nimee, Goldesberry, Walter, Schlafer |
| 5/28/2021 | 410 Sprints - Winged: IRA Interstate Racing Association | | Postponed |
| 5/29/2021 | 410 Sprints - Winged: IRA Interstate Racing Association | | Dropped |
| 5/30/2021 | Open Wheel Spectacular 410 Sprints - Winged: IRA Interstate Racing Association Non Wing Crate Sprints: Wisconsin wingLESS Sprints Lightning Sprints: IRA Lightning Sprints | | Pribnow, Neitzel, King, Spitz, Blackhurst |
Watch on FloRacing06/03/21 6:00 PM CST Click the icon to go to broadcast | 6/3/2021 | 410 Sprints - Winged: IRA Interstate Racing Association with All Star Circuit of Champions | | Courtney, Abreu, Balog, Madsen, Scelzi |
Watch on FloRacing06/04/21 6:00 PM CST Click the icon to go to broadcast | 6/4/2021 | 410 Sprints - Winged: IRA Interstate Racing Association with All Star Circuit of Champions Non Wing Crate Sprints: Wisconsin wingLESS Sprints Lightning Sprints: IRA Lightning Sprints | | Courtney, Madsen, Eliason, Scelzi, Abreu |
Watch on FloRacing06/05/21 5:30 PM CST Click the icon to go to broadcast | 6/5/2021 | 410 Sprints - Winged: IRA Interstate Racing Association with All Star Circuit of Champions 360 Sprints - Winged | | Balog, Madsen, Abreu, Bayston, Courtney |
Watch on FloRacing06/06/21 6:30 PM CST Click the icon to go to broadcast | 6/6/2021 | 410 Sprints - Winged: IRA Interstate Racing Association with All Star Circuit of Champions Badger Midgets: Badger Midget Auto Racing Association | | Balog, Madsen, Abreu, Henry, Eliason |
| 6/11/2021 | 410 Sprints - Winged: IRA Interstate Racing Association Lightning Sprints: Great Lakes Lightning Sprints Hobby Stocks | | Neitzel, Blackhurst, Stambaugh, Ruhl, Daggett |
| 6/12/2021 | 410 Sprints - Winged: IRA Interstate Racing Association Non Wing Crate Sprints: Wisconsin wingLESS Sprints Lightning Sprints: IRA Lightning Sprints A Modifieds | | Neitzel, Blackhurst, Schultz, Reinke, Nimee |
| 6/27/2021 | 410 Sprints - Winged: IRA Interstate Racing Association Badger Midgets: Badger Midget Auto Racing Association | | Balog, Schultz, Reinke, Neitzel, Borland |
| 7/1/2021 | $5000 to win NASCAR Kick Off 410 Sprints - Winged: IRA Interstate Racing Association 360 Sprints - Winged: MSA Sprint Car Association | | Balog, Blackhurst, Schultz, Goldesberry, Schneiderman |
| 7/23/2021 | Fair Race 410 Sprints - Winged: IRA Interstate Racing Association | | Blackhurst, Thiel, Goldesberry, Neitzel, Reinke |
| 7/24/2021 | Scott Semmelmann Memorial 410 Sprints - Winged: IRA Interstate Racing Association | | Nimee, Neitzel, Schlafer, Reinke, Borland |
| 7/30/2021 | 410 Sprints - Winged: IRA Interstate Racing Association | | Thiel, Blackhurst, Schlafer, Neitzel, Schultz |
| 7/31/2021 | Frank Filskov Memorial 410 Sprints - Winged: IRA Interstate Racing Association 360 Sprints - Winged: MSA Sprint Car Association Badger Midgets: Badger Midget Auto Racing Association | | Goldesberry, Thiel, Neitzel |
| 8/7/2021 | Founders Night 410 Sprints - Winged: IRA Interstate Racing Association Non Wing Crate Sprints: Wisconsin wingLESS Sprints Lightning Sprints: IRA Lightning Sprints A Modifieds | | Neitzel, Blackhurst, Nimee, Schlafer, Borland |
| 8/9/2021 | 26th Annual Sage Fruit Front Row Challenge 410 Sprints - Winged: IRA Interstate Racing Association 305 Sprints - Winged | | Larson, Brown, Macedo, Macri, Kahne |
| 8/21/2021 | Kenosha County Fair/Roger Iles Tribute 410 Sprints - Winged: IRA Interstate Racing Association Non Wing Crate Sprints: Wisconsin wingLESS Sprints Lightning Sprints: IRA Lightning Sprints | | Blackhurst, Windom, Short, Thiel, Schultz |
| 8/22/2021 | Corn Fest 410 Sprints - Winged: IRA Interstate Racing Association Badger Midgets: Badger Midget Auto Racing Association | | Thiel, Blackhurst, Balog, Schultz, Schuett |
| 8/29/2021 | Bill Waite Jr. Memorial 410 Sprints - Winged: IRA Interstate Racing Association with MOWA-Midwest Open Wheel Association | | Rain Out |
| 9/3/2021 | Harry Neitzel Tribute 410 Sprints - Winged: IRA Interstate Racing Association 360 Sprints - Winged | | Rain Out |
| 9/4/2021 | Sheboygan County Fair 410 Sprints - Winged: IRA Interstate Racing Association 360 Sprints - Winged: MSA Sprint Car Association | | Gass, Nimee, Blackhurst, Goldesberry, Neuman |
| 9/5/2021 | 410 Sprints - Winged: IRA Interstate Racing Association | | Blackhurst, Neitzel, Gass, Goldesberry, Neuman |
| 9/10/2021 | 410 Sprints - Winged: IRA Interstate Racing Association | | Thiel, Nimee, Schultz, Goldesberry, Neitzel |
| 9/11/2021 | Jerry Richert Memorial 410 Sprints - Winged: IRA Interstate Racing Association 360 Sprints - Winged: Midwest Power Series | | Tatnell, Henderson, Thiel, Dietz, Schlafer |
| 9/18/2021 | 410 Sprints - Winged: IRA Interstate Racing Association Non Wing Crate Sprints: Wisconsin wingLESS Sprints Lightning Sprints: IRA Lightning Sprints | | Thiel, Reinke, Neitzel, Schlafer, Nimee |
| 9/24/2021 | Checkered Classic/Rick Schmidt Memorial 410 Sprints - Winged: IRA Interstate Racing Association Non Wing Crate Sprints: Wisconsin wingLESS Sprints 360 Sprints - Winged | | Rain Out |
| 9/25/2021 | WI Sprint Car Championships 410 Sprints - Winged: IRA Interstate Racing Association Non Wing Crate Sprints: Wisconsin wingLESS Sprints Lightning Sprints: IRA Lightning Sprints 360 Sprints - Winged: MSA Sprint Car Association | | Gass, Schlafer, Blackhurst, Thiel, Meyer |