Professional Independent and Minor League Sports in Chicago
How about seeing a team in the area you haven't seen before? Where tickets are cheap. Where the players aren't paid millions. Here's a list of professional indepedent and minor league teams in Chicago. Since these teams play at different times of the year, you can look up in this chart which teams are playing this month.
Chicago Athlete (running, cycling, mountain biking, swimming, skiing, triathalon)
Chicago Independent and Minor League Sports on oursportscentral.com