2017 Michigan Collegiate Summer Baseball
The Great Lakes UBL Collegiate Baseball League (GLUBL) is a collegiate summer baseball league located in Michigan; including Detroit, Grand Rapids, Lansing, Flint, Saginaw and Kalamazoo metropolitan areas. Amateur players are from NCAA-sanctioned colleges and universities. The league plays a competitive travel schedule that includes a league championship series. The GLUBL is a member of the NABF.