Roller Derby Flat Track Leagues

All Roller Derby Flat Track Leagues or RDFT will be listed here. Please list them in the Roller Derby Flat Track Leagues for their separation from banked track and mixed track leagues.
== Active Flat Track Leagues ==
Please note that the leagues listed below are active. Please note their opening date.
* Minnesota Rollergirls (Open date of the league is unknown.)
* Women's Flat Track Derby Association - 2004 to Current
== Inactive Flat Track Leagues ==
Please note that the leagues listed below are inactive in some ways. Please note time opening date to inactive date.
== Closed Flat Track Leagues ==
Please note that the leagues listed below are now closed and note their time operation time.
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Roller Derby Flat Track Leagues