Description Available in: Kalamazoo FC (KZFC) is a semi-professional soccer club from Kalamazoo, Michigan, United States. The club competes in USL League Two, the fourth-tier soccer league of the American soccer pyramid. Soisson-Rapacz-Clason Field (also known as Mayor's Riverfront Stadium) serves as the club's home venue. It has a capacity for 2,200 spectators.