Buy one get one free Fridays. Valid All Friday Home Games. Up to 4 Free Tickets. Reserved Grandstand Only-Based on Availability. Purchase at Chinooks Office in Grafton (983 Badger Circle) or atKapco Park Stadium Box Office on game days when gates open. Tickets in advance by mail: 983 Badger Circle Grafton, WI 53024.VALID 2021 SEASON ONLY