The Derby City Roller Girls (DCRG) is a women's flat track roller derby league based in Louisville, Kentucky.

[1] The league was founded in 2007 by Jenni Ahlrich, known as "Bad Penny", after she had met a team from Austin, Texas.

[2] In its early days, it played at the Kentucky State Fairgrounds, often selling out the venue.

[3] The league joined the Women's Flat Track Derby Association (WFTDA) in 2009, and played its first WFTDA regulation bout against the Naptown Roller Girls in January 2010.

[4] This article related to sports in Louisville, Kentucky is a stub.