Tri-State League history
| Unaffiliated | 1887-1890 | 
This league played under the Ohio State League name in 1887.
Teams (in alphabetical order)
 Akron Acorns, 1887
 Akron Akrons, 1890
 Canton, 1887-1888, 1890
 Canton Nadjys, 1889
 Columbus Buckeyes, 1887
 Columbus Senators, 1888
 Dayton Reds, 1889-1890
 Hamilton, 1889
 Jackson Jaxons, 1888
 Kalamazoo Kazoos, 1887-1888
 Lima Lushers, 1888
 Mansfield, 1887-1890
 McKeesport, 1890
 Sandusky Fish Eaters, 1888
 Sandusky Suds, 1887
 Springfield, 1889-1890
 Steubenville Stubs, 1887
 Toledo Maumees, 1888
 Wheeling, 1887
 Wheeling Nail Cities, 1888
 Wheeling Nailers, 1889-1890
 Youngstown Giants, 1890
 Zanesville Kickapoos, 1887-1888
