By September 2011, there were more than 1,000 amateur leagues on every inhabited continent, in countries such as Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, the United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

, New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

, Germany

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

, Belgium

Belgium

Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

, Finland

Finland

Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

, Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

  and Singapore

Singapore

Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...

. Canadian roller derby leagues may join the Canadian Women's Flat Track Roller Derby Association (CWRDA), which in January 2012 will rename itself the Roller Derby Association of Canada (RDAC).

Outside of the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, many roller derby leagues enjoy support from their national skate federations such as Skate Australia

Skate Australia

This organisation is the national governing body for roller sports in the country. Skate Australia recognised roller derby as a roller sport.-See also:* International Roller Sports Federation*International Roller Sports Federation - Inline...

, and Roller Sports Canada

Roller Sports Canada

This organisation is the national governing body for roller sports in the country. Roller Sports Canada recognises roller derby as a roller sport.-See also:* International Roller Sports Federation*International Roller Sports Federation - Inline...

.

Contemporary roller derby has a basic set of rules, with variations reflecting the interests of a governing body's member leagues. The Women's Flat Track Derby Association (WFTDA), which is used by the majority of leagues around the world. For example, members of the United Kingdom Roller Derby Association

United Kingdom Roller Derby Association

The United Kingdom Roller Derby Association is the National Association for roller derby in the UK. The association was formed in 2010 with 15 member leagues, and was recognized by the British Roller Sports Federation soon after....

 are required to play by WFTDA rules, while members of the Canadian Women's Roller Derby Association are encouraged to join the WFTDA.

Leagues

• Abbotsford, British Columbia
  Abbotsford, British Columbia
  Abbotsford is a Canadian city located in the Lower Mainland of British Columbia, adjacent to Greater Vancouver. It is the fifth largest municipality in British Columbia, home to 123,864 people . Its Census Metropolitan Area, which includes the District of Mission, is the 23rd largest in Canada,...
  
   – Reign Valley Vixens
• Alliston, Ontario
  Alliston, Ontario
  Alliston is a settlement in Simcoe County in the Canadian province of Ontario. It is part of the Town of New Tecumseth since the 1991 amalgamation of Alliston and nearby villages of Beeton, Tottenham, and the Township of Tecumseth...
  
   - Renegade Derby Dames
• Brantford, Ontario
  Brantford, Ontario
  Brantford is a city located on the Grand River in Southern Ontario, Canada. While geographically surrounded by the County of Brant, the city is politically independent...
  
   – Belle City Roller Girls
• Barrie, Ontario
  Barrie, Ontario
  Barrie is a city in Southern Ontario, Canada, located on the western shore of Lake Simcoe, approximately 90 km north of Toronto. Although located in Simcoe County, the city is politically independent...
  
   – South Simcoe Rebel Rollers
• Calgary, Alberta – Calgary Roller Derby Association
  Calgary Roller Derby Association
  The Calgary Roller Derby Association is a not-for-profit flat-track roller derby league based in Calgary, Alberta, Canada. The CRDA was founded in 2007, and is skater-owned and skater-operated....
  
  
• Chilliwack, British Columbia
  Chilliwack, British Columbia
  Chilliwack is a Canadian city in the Province of British Columbia. It is a predominantly agricultural community with an estimated population of 80,000 people. Chilliwack is the second largest city in the Fraser Valley Regional District after Abbotsford. The city is surrounded by mountains and...
  
   – Voodoo Derby Dollz Roller Derby Association
• Cold Lake
  Cold Lake, Alberta
  Cold Lake is a city in northeastern Alberta, Canada, named after the lake it is situated near.-Geography:The city is situated in Alberta's "Lakeland" district, 300 km northeast of Edmonton, near the Alberta-Saskatchewan provincial border. The area surrounding the city is sparsely populated,...
  
   and Bonnyville, Alberta
  Bonnyville, Alberta
  Bonnyville, Alberta is a town situated in east-central Alberta between the City of Cold Lake and the Town of St. Paul. It is the seat of the Municipal District of Bonnyville No...
  
   – Lakeland Ladykillers Roller Derby League
• Edmonton, Alberta – E-Ville Roller Derby
• Edmonton, Alberta – Oil City Derby Girls
• Fredericton, New Brunswick
  Fredericton, New Brunswick
  Fredericton is the capital of the Canadian province of New Brunswick, by virtue of the provincial parliament which sits there. An important cultural, artistic, and educational centre for the province, Fredericton is home to two universities and cultural institutions such as the Beaverbrook Art...
  
   – Capital City Rollers
• Halifax, Nova Scotia – Halifax Roller Derby Association
• Hamilton, Ontario
  Hamilton, Ontario
  Hamilton is a port city in the Canadian province of Ontario. Conceived by George Hamilton when he purchased the Durand farm shortly after the War of 1812, Hamilton has become the centre of a densely populated and industrialized region at the west end of Lake Ontario known as the Golden Horseshoe...
  
   – Hammer City Roller Girls
• Kelowna, British Columbia
  Kelowna, British Columbia
  Kelowna is a city on Okanagan Lake in the Okanagan Valley, in the southern interior of British Columbia, Canada. Its name derives from a Okanagan language term for "grizzly bear"...
  
   – (see Okanagan Roller Derby Girls)
• Kamloops, British Columbia
  Kamloops, British Columbia
  Kamloops is a city in south central British Columbia, at the confluence of the two branches of the Thompson River and near Kamloops Lake. It is the largest community in the Thompson-Nicola Regional District and the location of the regional district's offices. The surrounding region is more commonly...
  
   – (see Tournament City Derby Dolls)
• Kitchener-Waterloo Area, Ontario
  Regional Municipality of Waterloo
  The Regional Municipality of Waterloo is a regional municipality located in Southern Ontario, Canada. It consists of the cities of Kitchener, Cambridge, and Waterloo, and the townships of Wellesley, Woolwich, Wilmot, and North Dumfries. It is often referred to as the Region of Waterloo or just...
  
   – Tri-City Roller Girls
  Tri-City Roller Girls
  Tri-City Roller Girls is a women's flat-track roller derby league in Kitchener, Ontario. On December 1, 2010, Tri-City became the third Canadian roller derby league to be granted membership in the Women's Flat Track Derby Association, an organization that thus far, is overwhelmingly composed of...
  
  
• Kingston, Ontario
  Kingston, Ontario
  Kingston, Ontario is a Canadian city located in Eastern Ontario where the St. Lawrence River flows out of Lake Ontario. Originally a First Nations settlement called "Katarowki," , growing European exploration in the 17th Century made it an important trading post...
  
   - Limestone CrusHers Roller Derby
• Kingston, Ontario
  Kingston, Ontario
  Kingston, Ontario is a Canadian city located in Eastern Ontario where the St. Lawrence River flows out of Lake Ontario. Originally a First Nations settlement called "Katarowki," , growing European exploration in the 17th Century made it an important trading post...
  
   - Kingston Derby Girls
• Guelph, Ontario
  Guelph, Ontario
  Guelph is a city in Southwestern Ontario, Canada. Known as "The Royal City", Guelph is roughly east of Waterloo and west of downtown Toronto at the intersection of Highway 6 and Highway 7. It is the seat of Wellington County, but is politically independent of it...
  
   – Royal City Rollergirls
• London, Ontario
  London, Ontario
  London is a city in Southwestern Ontario, Canada, situated along the Quebec City – Windsor Corridor. The city has a population of 352,395, and the metropolitan area has a population of 457,720, according to the 2006 Canadian census; the metro population in 2009 was estimated at 489,274. The city...
  
   – Forest City Derby Girls
• London, Ontario
  London, Ontario
  London is a city in Southwestern Ontario, Canada, situated along the Quebec City – Windsor Corridor. The city has a population of 352,395, and the metropolitan area has a population of 457,720, according to the 2006 Canadian census; the metro population in 2009 was estimated at 489,274. The city...
  
   – LOCO Roller Derby
• Medicine Hat, Alberta
  Medicine Hat, Alberta
  Medicine Hat, known to locals as "The Hat", is a city of 61,097 people located in the southeastern part of the province of Alberta, Canada. It is enclaved within Cypress County along with the nearby Town of Redcliff, although neither is part of the county....
  
   – Gas City Rollers
• Moncton, New Brunswick
  Moncton, New Brunswick
  Moncton is a Canadian city, located in Westmorland County, New Brunswick. The city is situated in southeastern New Brunswick, within the Petitcodiac River Valley, and lies at the geographic centre of the Maritime Provinces...
  
   – Muddy River Rollers
• Montreal, Quebec – Montreal Roller Derby
  Montreal Roller Derby
  Montreal Roller Derby, the first flat-track roller derby league in Montreal, is a non-profit organization that was started in 2006 by Georgia W. Tush.Montreal Roller Derby League became the first non-U.S...
  
  
• Okanagan
  Okanagan
  The Okanagan , also known as the Okanagan Valley and sometimes as Okanagan Country is a region located in the Canadian province of British Columbia defined by the basin of Okanagan Lake and the Canadian portion of the Okanagan River. As of 2009, the region's population is approximately 350,927. The...
  
  , British Columbia
  British Columbia
  British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...
  
   – Okanagan Roller Derby Girls (Kelowna Peach Tarts)
• Okanagan
  Okanagan
  The Okanagan , also known as the Okanagan Valley and sometimes as Okanagan Country is a region located in the Canadian province of British Columbia defined by the basin of Okanagan Lake and the Canadian portion of the Okanagan River. As of 2009, the region's population is approximately 350,927. The...
  
  /Shuswap
  Shuswap
  Shuswap *Secwepemc - an indigenous people in British Columbia, Canada, also known in English as the Shuswap*Shuswap language - a language spoken by the Secwepemc...
  
  , British Columbia
  British Columbia
  British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...
  
   – Okanagan Shuswap Roller Derby
• Ottawa, Ontario – Capital City Derby Dolls
• Ottawa, Ontario – Ottawa Roller Derby
• Ottawa, Ontario – Rideau Valley Roller Girls
• Prince George, British Columbia
  Prince George, British Columbia
  Prince George, with a population of 71,030 , is the largest city in northern British Columbia, Canada, and is known as "BC's Northern Capital"...
  
   – Rated PG Rollergirls
• Quebec City, Quebec – Roller Derby Québec
• Red Deer, Alberta
  Red Deer, Alberta
  Red Deer is a city in Central Alberta, Canada. It is located near the midpoint of the Calgary-Edmonton Corridor and is surrounded by Red Deer County. It is Alberta's third-most-populous city – after Calgary and Edmonton. The city is located in aspen parkland, a region of rolling hills...
  
   – Red Deer Roller Derby Association
• Regina, Saskatchewan
  Regina, Saskatchewan
  Regina is the capital city of the Canadian province of Saskatchewan. The city is the second-largest in the province and a cultural and commercial centre for southern Saskatchewan. It is governed by Regina City Council. Regina is the cathedral city of the Roman Catholic and Romanian Orthodox...
  
   – Pile O' Bones Derby Club
• Saint John, New Brunswick
  Saint John, New Brunswick
  City of Saint John , or commonly Saint John, is the largest city in the province of New Brunswick, and the first incorporated city in Canada. The city is situated along the north shore of the Bay of Fundy at the mouth of the Saint John River. In 2006 the city proper had a population of 74,043...
  
   – Fog City Rollers
• Saskatoon, Saskatchewan – Saskatoon Roller Derby League
• St. Albert, Alberta
  St. Albert, Alberta
  St. Albert is a suburban city in Alberta, located northwest of Edmonton, on the Sturgeon River. It was originally settled as a Métis community, and is now the second largest city in the Edmonton area. St...
  
   – St. Albert Heavenly Rollers
• St. John's, Newfoundland – 709 Derby Girls (2010 - present)
• Sudbury, Ontario – Nickel City Roller Derby
• Stratford, Ontario
  Stratford, Ontario
  Stratford is a city on the Avon River in Perth County in southwestern Ontario, Canada with a population of 32,000.When the area was first settled by Europeans in 1832, the townsite and the river were named after Stratford-upon-Avon, England. It is the seat of Perth County. Stratford was...
  
   – LOCO Roller Derby
• Sunshine Coast, British Columbia
  Sunshine Coast, British Columbia
  The Sunshine Coast is a region of the southern mainland coast of British Columbia, on the eastern shore of the Strait of Georgia, and just northwest of Greater Vancouver...
  
   – Sunshine Coast Roller Girls
• Toronto, Ontario – Toronto Junior Roller Derby
• Toronto, Ontario – GTA Rollergirls
• Toronto, Ontario – Toronto Roller Derby
  Toronto Roller Derby
  Toronto Roller Derby , is a women's flat-track roller derby league in Toronto, Ontario, Canada. Formed in 2006, the league started play in 2007, and completed its fifth season in 2011...
  
  
• Vancouver, British Columbia – Terminal City Roller Girls
• Victoria, British Columbia
  Victoria, British Columbia
  Victoria is the capital city of British Columbia, Canada and is located on the southern tip of Vancouver Island off Canada's Pacific coast. The city has a population of about 78,000 within the metropolitan area of Greater Victoria, which has a population of 360,063, the 15th most populous Canadian...
  
   – Victoria Rollergirls
• Victoria, British Columbia
  Victoria, British Columbia
  Victoria is the capital city of British Columbia, Canada and is located on the southern tip of Vancouver Island off Canada's Pacific coast. The city has a population of about 78,000 within the metropolitan area of Greater Victoria, which has a population of 360,063, the 15th most populous Canadian...
  
   – Eves of Destruction
• Wetaskiwin, Alberta – Rez City Rollers
• Lacombe
  Lacombe, Alberta
  Lacombe is a city in Alberta, Canada. It is located north of Red Deer, the nearest major city, and south of Edmonton, the nearest metropolitan area...
  
  , Alberta
• Whitehorse, Yukon
  Whitehorse, Yukon
  Whitehorse is Yukon's capital and largest city . It was incorporated in 1950 and is located at kilometre 1476 on the Alaska Highway in southern Yukon. Whitehorse's downtown and Riverdale areas occupy both shores of the Yukon River, which originates in British Columbia and meets the Bering Sea in...
  
   – Yukon Roller Girls (2010–present)
• Williams Lake, British Columbia
  Williams Lake, British Columbia
  Williams Lake, is a city in the Central Interior of British Columbia, Canada. Located in the central part of a region known as the Cariboo, it is the largest urban centre between Kamloops and Prince George, with a population of 11,150 in city limits....
  
   – Lake City Derby Girls
• Winnipeg, Manitoba – Winnipeg Roller Derby League