2013 Frontier League team rosters:

East Division
Evansville Otters Florence Freedom Lake Erie Crushers
Frontier Greys Southern Illinois Miners Traverse City Beach Bums
  Washington Wild Things  
West Division
Gateway Grizzlies Joliet Slammers Normal CornBelters
River City Rascals Rockford Aviators Schaumburg Boomers
  Windy City ThunderBolts  

Frontier League Online will continue to update the rosters throughout the 2012 season.

Frontier Greys Evansville Otters Florence Freedom Traverse City Beach Bums Washington Wild Things Gateway Grizzlies Lake Erie Crushers Normal Cornbelters River City Rasacals Windy City Thunderbolts Joliet Slammers Southern Illinois Miners Rockford Avaiators Schaumburg Boomers
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