| 4/24/2021 | Lightning Sprints: POWRi Minn-Kota Lightning Sprints Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints | | Canceled |
| 5/1/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Richards, Tuenge, Armstrong, Satran, Duchscherer |
| 5/8/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Armstrong, Richards, Johanson, Odden, Heintz |
| 5/15/2021 | Lightning Sprints: POWRi Minn-Kota Lightning Sprints Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Richards, Tuenge, Bachmeier, Arends, Bromstad |
| 5/22/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Armstrong, Arends, Steele, Slaubaugh, Nordhagen |
| 5/29/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Armstrong, Tuenge, Adam, Bundy, Slaubaugh |
| 6/5/2021 | Sprints: Northern Outlaw Sprint Association Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints | | Armstrong, Slaubaugh, Tuenge, Beeter, Adam |
| 6/12/2021 | Lightning Sprints: POWRi Minn-Kota Lightning Sprints Pure Stock, WISSOTA Midwest Mods, Non-Winged Sprints | | Armstrong, Arends, Bundy, Slaubaugh, Bromstad |
| 6/19/2021 | Lightning Sprints: POWRi Minn-Kota Lightning Sprints Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods | | Richards, Bundy, Johanson, Tuenge, Adam |
| 6/26/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Late Model, Non-Winged Sprints, Trophy Class | | Tuenge, Bundy, Johanson, Adam, Hooker |
| 7/10/2021 | Sprints: Northern Outlaw Sprint Association Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints | | Tuenge, Armstrong, Adam, Bromstad, Slaubaugh |
| 7/17/2021 | Lightning Sprints: POWRi Minn-Kota Lightning Sprints Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints | | Armstrong, Bromstad, Adam, Tuenge, Johanson |
| 7/24/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Armstrong, Johanson, Adam, Bundy, Tuenge |
| 7/31/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, WISSOTA Late Model | | Bundy, Richards, Armstrong, Tuenge, Hanson |
| 8/7/2021 | Lightning Sprints: POWRi Minn-Kota Lightning Sprints Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints | | Richards, Tuenge, Johanson, Beeter, Armstrong |
| 8/14/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Armstrong, Tuenge, Richards, Johanson, Loughman |
| 8/21/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Armstrong, Loughman, Bundy, Tuenge, Beeter |
| 8/28/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Trophy Class | | Hooker, Armstrong, Tuenge, Bundy, Jacobson |
| 9/4/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Richards, Tuenge, Sandberg, Eckerdt, Hooker |
| 9/5/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, Non-Winged Sprints, Trophy Class | | Richards, Armstrong, Hooker, Sandberg, Bundy |
| 9/18/2021 | Lightning Sprints: POWRi Minn-Kota Lightning Sprints Pure Stock, Non-Winged Sprints, Trophy Class | | Halverson, Loughman, Welk, Hooker, Slaubaugh |
| 10/2/2021 | Pure Stock, WISSOTA Street Stock, WISSOTA Midwest Mods, WISSOTA Late Model, Lightning Sprints | | Loughman, Adam, Koble, Vetsch, Mack |