Rankings for the Women's Flat Track Derby Association (WFTDA) are used to determine placement in overall standings (rather than win-loss record) and also to determine seedings at WFTDA Playoffs. Achieving high rankings is also a goal for teams aiming to increase their stature in the organization. [1] [2] Each year at the end of June, teams are seeded into Division 1 and Division 2 playoff tournaments. Historically, the top 40 teams in the WFTDA as of June 30 were eligible for Division 1 tournaments that season, and the teams ranked 41–60 were eligible for Division 2 tournaments. [3] For 2017, the Division 1 cutoff was reduced to the top 36 teams, with the next 16 teams qualifying for Division 2 Playoffs. [4] The 2017 WFTDA Championships winner, Victorian Roller Derby League from Melbourne, Australia, became the first non-American team to achieve the top rankings slot in WFTDA history. [5]
Ranking scores are calculated by averaging the number of game points a team earns in the last twelve months by the number of games played in the same time period. Game points are calculated using the following formula
where the Win/Loss Factor is three (the base value of a game) multiplied by percentage of points earned in the game and Opponent Strength is based on how far from the WFTDA-wide median score the opponent's score is. Minimum Opponent Strength for all teams is set to 0.5. [6]
The Women's Flat Track Derby Association (WFTDA) is the international governing body for the sport of women's flat track roller derby, and association of leagues around the world. The organization was founded in April 2004 as the United Leagues Coalition (ULC), but was renamed in November 2005. It is registered in Raleigh, North Carolina as a 501(c)(6) business league organization, a type of nonprofit organization.
Minnesota Roller Derby (MNRD) is a women's flat track roller derby league based in Saint Paul, Minnesota, in the United States. Founded in August 2004 as Minnesota RollerGirls by the Donnelly sisters, MNRD was one of the first 30 members of the Women's Flat Track Derby Association (WFTDA) by early 2006. Today the league has over 80 skaters playing on four home teams as well as their All-Star team, which has qualified for WFTDA Playoffs every year since its inception.
Santa Cruz Derby Girls (SCDG) is a women's flat track roller derby league in Santa Cruz, California. The first female, amateur flat-track roller derby league in Santa Cruz, Santa Cruz Derby Girls is a member of the Women's Flat Track Derby Association (WFTDA).
Ohio Roller Derby (OHRD) is a women's flat track roller derby league based in Columbus, Ohio. Founded in 2005, the league currently consists of two mixed teams which compete against teams from other leagues. Ohio Roller Derby is a founding member of the Women's Flat Track Derby Association (WFTDA).
Madison Roller Derby (MRD), founded as "Mad Rollin' Dolls", is a women's flat-track roller derby league based in Madison, Wisconsin. Founded in 2004, Madison is a founding member of the Women's Flat Track Derby Association (WFTDA), and was the fourth league to join the fledgling organization. Since 2006, Madison has qualified for the WFTDA post-season every year, including three appearances at WFTDA Championships.
Jacksonville Roller Derby is a women's flat track roller derby league based in Jacksonville, Florida, (USA). Originally formed as the First Coast Fatales, the league became Jacksonville RollerGirls in 2007, and changed to its current name in 2018. The league has been a member of the Women's Flat Track Derby Association (WFTDA) since December 2010.
The Charm City Roller Girls (CCRG) is a flat track roller derby league in Baltimore, Maryland. Founded in 2005, Charm City is a member of the Women's Flat Track Derby Association (WFTDA).
Denver Roller Derby (DRD) is a flat-track roller derby league based in Denver, Colorado. The league was founded in December 2005. Denver Roller Derby is a member of the Women's Flat Track Derby Association (WFTDA), joining in December 2007 as Denver Roller Dolls. In January 2015, the league changed its name to Denver Roller Derby.
Boston Roller Derby, (BRD), is a flat-track roller derby league based in Boston, Massachusetts. The league was founded as Boston Derby Dames in May 2005, and is a founding member of the Women's Flat Track Derby Association (WFTDA). The league's all-star team, the Boston Massacre, was one of the top 25 WFTDA Division 1 teams in the world through most of the duration of the divisional ranking system introduced in early 2013, and as of December 31, 2015, the Massacre was ranked at 21. Boston won the WFTDA Division 2 Championship in 2017 and the North America East Continental Cup in 2018.
Philly Roller Derby (PRD) is a women's flat-track roller derby league based in Philadelphia, Pennsylvania. Founded in 2005, Philly Roller Derby is a founding member of the Women's Flat Track Derby Association (WFTDA).
Toronto Roller Derby (ToRD), is a women's flat-track roller derby league in Toronto, Ontario, Canada. Formed in 2006, the league started play in 2007, and held its tenth season in 2016. Operated and managed by its skaters and members, ToRD has four house teams, one rookie travel team, and one WFTDA charter travel team. Since 2011, the league has operated out of a space in Downsview Park, but announced in January 2015 that they were in search of a new home. They have since moved to another space near Downsview Park.
Nashville Roller Derby is a women's flat-track roller derby league based in Nashville, Tennessee. Founded as Nashville Rollergirls, the league is a member of the Women's Flat Track Derby Association (WFTDA).
Crime City Rollers is a women's flat track roller derby league based in Malmö, Sweden.
The International Women's Flat Track Derby Association Championships are the leading competition for roller derby leagues.
Jet City Roller Derby (JCRD) is a women's flat track roller derby league based in Everett, Washington. Founded in 2006, Jet City is a member of the Women's Flat Track Derby Association (WFTDA).
Angel City Derby is a women's flat track roller derby league based in Los Angeles, California. Founded in 2006 by a collective of skaters, the league is composed of nearly 200 members divided into four teams who skate on a flat track and compete against teams from the state of California and internationally. The league is skater-owned and operated, "by the skater, for the skater," a volunteer-fueled effort by the women and men in the organization. Angel City is a member of the Women's Flat Track Derby Association (WFTDA). In recent years Angel City's all-star team, the Hollywood Scarlets, has been considered one of the top teams in the WFTDA.
Rainy City Roller Derby (RCRD) is a women's flat track roller derby league based in Manchester, England. Founded as "Rainy City Roller Girls" in 2008, the league consists of four teams, which compete against teams from other leagues. Rainy City is a member of the United Kingdom Roller Derby Association (UKRDA) and the Women's Flat Track Derby Association (WFTDA), and served as the host league for the 2018 Roller Derby World Cup.
2x4 Roller Derby is a women's flat track roller derby league based in Buenos Aires, Argentina. Founded in 2010, the league consists of three teams that play against each other: Bully Chicks, Cowgirls From Hell and Bloody Furias. It is also represented by three travel teams that play against travel teams from other leagues.
The Women's Flat Track Derby Association Division 1 is the highest level of play in women's flat track roller derby.
The Women's Flat Track Derby Association Division 2 was the second-highest level of play in women's flat track roller derby from 2013 through 2017. Comprising different structures over that time, in early 2018 the Women's Flat Track Derby Association (WFTDA) announced it was replacing the Division 2 Playoffs with geographically-based Continental Cups, the structure and quantity of which is expected to adjust and possibly expand over time.