Derby City Roller Girls
The Derby City Roller Girls is a women's flat track roller derby league based in Louisville, Kentucky. Founded in 2007, the league currently consists of two teams, which compete against teams from other leagues. Derby City is a member of the Women's Flat Track Derby Association.
History
The league was founded in 2007 by Jenni Ahlrich, known as "Bad Penny", after she had met a team from Austin, Texas. In its early days, it played at the Kentucky State Fairgrounds, often selling out the venue.The league joined the Women's Flat Track Derby Association in 2009, and played its first WFTDA regulation bout against the Naptown Roller Girls in January 2010.
WFTDA rankings
| Season | Final ranking | Playoffs | Championship |
| 2010 | 19 NC | DNQ | DNQ |
| 2011 | 21 NC | DNQ | DNQ |
| 2012 | 28 NC | DNQ | DNQ |
| 2013 | 138 WFTDA | DNQ | DNQ |
| 2014 | 136 WFTDA | DNQ | DNQ |
| 2015 | 109 WFTDA | DNQ | DNQ |
| 2016 | 145 WFTDA | DNQ | DNQ |
| 2017 | 151 WFTDA | DNQ | DNQ |