Established in the summer of 2020, MASL3 is the third tier of indoor soccer in North America under the MASL banner.[1][2] Grand Rapids Wanderers and Muskegon Risers II were the first two member clubs announced[3] with the Omaha Kings FC and Sunflower State FC named the same week.[4][5] Wichita Wings II and Springfield Demize were also added to the inaugural MASL3 lineup.[6][7][8]
With the ongoing COVID-19 pandemic just four teams (Grand Rapids and Muskegon sat out) competed in the inaugural season of 2020–21. Omaha Kings FC finished the six-game regular season unbeaten and went on to capture the Heartland Invitational Cup with victories over Wichita Wings II (11-8) and Sunflower State FC (13-7).[9]