From left to right, "The Alexorcist," "Margie Ram," "Chiquita WhamBamYa," "Bunz Bunny," and "Lady Shatterly" skate in a roller derby scrimmage in Utah.
|Highest governing body||WFTDA, MRDA, JRDA|
|First played||1935, Chicago, Illinois
2001, Austin, Texas
|Team members||14 on roster. Up to 5 on track during each jam|
|Type||Indoor, roller sport|
|Equipment||Roller skates, helmet, knee pads, elbow pads, wrist guards, mouthguard|
Roller derby is a contact sport played by two teams of five members roller skating in the same direction around a track. Game play consists of a series of short match ups (jams) in which both teams designate a jammer who scores points by lapping members of the opposing team. The teams attempt to hinder the opposing jammer while assisting their own jammer—in effect, playing both offense and defense simultaneously. Roller derby is played by approximately 1,250 amateur leagues worldwide, nearly half of them outside the United States.
While the sport has its origins in the banked-track roller skating marathons of the 1930s, Leo Seltzer and Damon Runyon are credited with the basic evolution of the sport to its initial competitive form. Professional roller derby quickly became popular; in 1940, more than five million spectators watched in about 50 American cities. In the ensuing decades, however, it predominantly became a form of sports entertainment where the theatrical elements overshadowed the athleticism. This gratuitous showmanship largely ended with the sport's contemporary grassroots revival in the first decade of the 21st century. Although some sports entertainment qualities such as player pseudonyms and colorful uniforms were retained, scripted bouts with predetermined winners were abandoned.
Modern roller derby is an international sport dominated by all-female amateur teams, in addition to a growing number of male, unisex, and junior roller derby teams, and was (as a roller sport) under consideration for the 2020 Summer Olympics. Most modern leagues (their back-office volunteers included) share a strong "do it yourself" ethic which combines athleticism and elements from camp. As of 2014, the Women's Flat Track Derby Association (WFTDA), had 243 full member leagues and 114 Apprentice Leagues.
- 1 Game play
- 2 Officials
- 3 History
- 4 Contemporary roller derby
- 5 Governance and organization
- 6 See also
- 7 Notes
- 8 References
- 9 External links
- 10 Related information
Contemporary roller derby has a basic set of rules, with variations reflecting the interests of a governing body's member leagues. The summary below is based on a comprehensive rule set developed by the Women's Flat Track Derby Association (WFTDA), which is used by the vast majority of leagues. In March 2010, Derby News Network claimed that more than 98% of roller derby competitions were conducted under WFTDA rules. For example, members of the United Kingdom Roller Derby Association are required to play by WFTDA rules, while members of the Canadian Women's Roller Derby Association are encouraged to join the WFTDA. Thus, the rules described below are WFTDA rules.
Basics of play
Roller derby is played by two teams of up to fourteen players, who both field up to five members for each two-minute jam, simultaneously skating counterclockwise on a circuit track. Each team designates a scoring player (the "jammer"); the other four members are "blockers." One blocker can be designated as a "pivot"—a special blocker who is allowed to become a jammer in the course of play.:7 The jammer wears a helmet cover bearing two stars; the pivot wears a striped cover; the remaining members' helmets are uncovered.:7
The bout is played in two periods of 30 minutes.:4 Point scoring occurs during "jams": plays that last up to two minutes.:5 During a jam, points are scored when a jammer on a scoring pass (every pass a jammer makes through the pack after the initial pass) laps members of the opposing team.:33 Each team's blockers use body contact, changing positions, and other tactics to assist its jammer to score while hindering the opposing team's jammer. Certain types of blocks and other play are violations; referees call penalties and require violators to serve time in a penalty box.:29
Play begins by blockers lining up on the track anywhere between the rear "jammer line" and the front "pivot line". The jammers start behind the "jammer line," a second starting line 30 feet behind the pivot line.:12 Jams begin on a single short whistle blast  where both jammers and blockers may begin engaging immediately.
The pack is the largest single group of blockers containing members of both teams skating in proximity, arranged such that each are within 10 feet of the next.:11 While blockers are required to maintain the pack, they are permitted to skate freely within the area of the track beginning 20 feet behind the pack and ending 20 feet ahead of it, an area known as the "engagement zone.":13 The first jammer to exit the front of the pack, having legally passed all blockers at least once, earns the status of "lead jammer.":7 Once earned, lead jammer status cannot be transferred to other skaters, but certain actions (notably, being sent to the penalty box) can cause it to be lost.:8 After the initial pass through the pack, each jammer scores a point every time they lap any member of the opposing team.:33
The lead jammer can stop the jam at any time by repeatedly placing both hands on their hips.: If the jam is not stopped early, it ends after 2 minutes.:5 If time remains in the period, teams then have 30 seconds to get on the track and line up for the next jam.:5 Team members typically rotate between jams from the 14 players on the team's roster. Designations may change between jams: a pivot in one jam might be the jammer in a later jam.:7
|Jammer||Stars||Scores points by lapping opposing team members:7|
|Blocker||None||Hinders the opposing jammer by preventing them from passing through the pack and assists their team's jammer to progress through the pack. They are responsible for maintaining a pack.:18|
|Pivot||Stripe||The pivot is a blocker who may be converted to a jammer during the course of a jam,:7 if the jammer's helmet cover is correctly transferred in a "Star Pass" manoeuvre.:29 The pivot is often an experienced player who establishes team strategy during play and broadly sets the pace of the pack.:19|
The jammer scores by passing opposition team members. Each jammer must first complete a non-scoring pass through the pack, which determines which jammer (if any) is the lead jammer. After this, the jammer scores a point each time they lap an opposition team member, including the other team's jammer.:33
Roller derby athletes may attempt to knock their opponents out of bounds or impede their movements by blocking (actions which are not solely within the prerogative of the official blockers). Legal blocks follow certain rules. Contact by hands, elbows, head, and feet are prohibited, as is contact above the shoulders or below mid-thigh. Furthermore, contact may not be from the rear, only from a player's front or sides.:14
Referees determine penalties.:36 A player receiving a penalty is removed from play to sit in a penalty box for 30 seconds.:29 If a jam ends beforehand, the player remains in the penalty box during the subsequent jam until the penalty is completed.:30 Jammers are released from the penalty box earlier if the second jammer is sent to the box while the first is still seated. The second jammer's penalty is then only as long as the amount of time the first jammer spent in the box.:31 A player "fouls out" of the game upon the seventh time they are sent to the penalty box, and is required to return to the locker room.:32
Players skate on four-wheeled ("quad") roller skates,:11 and are required to wear protective equipment, including a helmet, wrist guards, elbow pads, knee pads, and mouth guards. Additional gear that is acceptable though subject to individual team rules include padded knee length pants, similar to what aggressive skateboarders wear, and biologically specific gear such as a hard case sports bra for female players and protective cups for males.:39
Strategy and tactics
Roller derby is a game where offense and defense are played simultaneously, a highly volatile aspect which considerably complicates strategy and tactics. Blockers, for example, may create a large hole for their jammer to pass through and score, but this same maneuver might also allow the opposing team's jammer to score.
- Ending the Jam: The lead jammer can "call off" or end the jam at any time, thus they control the opposing team's ability to score points. Ideally, the lead jammer will attempt to score as many points as possible, and end the jam before the opposing team scores any.
- Passing the Star: The jammer for a team may "pass the star" to the pivot — that is, they hand the star helmet cover to the pivot, at which point the pivot becomes the scoring jammer for the team.:9 A jammer might pass the star because of fatigue, injury, penalty trouble, or because the pivot is in a better position to score. Passing the star is also colloquially referred to as "passing the panty," as helmet covers are colloquially called "panties."
- The Whip: A blocker or pivot grasps her jammer's hand and swings her forward, thus transferring some of her speed and momentum to the jammer.
- Walling Up: A basic "wall" consists of two blockers working together to take up as much space on the track as possible to make it difficult for the opposing team to maneuver. "Walling up" refers to creating a wall formation at a strategic time, so the opposing team (especially the jammer) has no time to respond. A wall can inhibit, slow down, and ultimately trap the opposing jammer, and may last an entire jam if they can effectively hold the opposing team. Variations on the strategy include setting up blockers to rotate through the wall positions.
- Goating: The pack is defined as the largest group of in bounds Blockers, skating in proximity, containing members from both teams.:11 In the "goatherding" tactic, one team surrounds a blocker of the opposing team (usually the strongest or best blocker), and then slows so that that group becomes the pack. The opposing team, skating ahead, are thus put out of play and thus cannot legally block the goatherders' jammer.
- The Diamond: A similar tactic to Goating wherein four blockers form a rough diamond around the opposing jammer to prevent her from getting through the pack.
- Bridging: blockers move ahead of the main pack by up to 10 feet to stretch out the pack. This also stretches out the engagement zone, allow their team members to continue hindering the opposition jammer. Also see "reverse bridging"
- Running back or reverse bridging: a skater who bumps an opposition skater off the track then skates backwards (in clockwise direction), forcing the opposition to re-enter further behind the pack.
Regulation WFTDA bouts are officiated by three to seven skating officials:35 and a multitude of non-skating officials (NSOs). Due to the volunteer nature of the sport, many officiating positions are optional. Skating officials are usually referred to as referees and non-skating officials are called NSOs for short. Referees skate on the inside and outside of the track. They are in charge of calling penalties, awarding points, and most importantly ensuring safe game play.:36 Referees must be on skates (inline skates are allowed) and typically wear white and black stripes.:38 NSOs take up a range of positions inside and outside of the track, and are responsible for starting and timing the jams, recording and displaying scores and penalties communicated by referees, recording the number of each skater on track for a given jam, and timing and recording skaters in the penalty box.
|Head Referee||1||Responsible for the general supervision of the entire bout and has final authority on all rulings.:35 The head referee will take the position of inside pack referee.:1 Along with the responsibilities of an inside pack referee, the head referee is also responsible for issuing expulsions:35 and for announcing the results of official reviews.:38|
|Pack Referee||Up to 5||Located both inside and outside the track, pack referees are responsible for watching the skaters in the pack, pack definition and calling penalties.:35:29|
|Jammer Referees||2||Skating on the inside of the track,:29 jammer referees watch the jammers of a specific team and wear a wristband (and optionally a helmet cover) in that team's color to identify which team they are watching.:35 They award points for opponents passed by their jammer,:36 and signal whether theirs is the lead jammer.:29|
Non-skating officials (NSOs)
|Scorekeepers||2||Record points scored by jammers.:36|
|Penalty Trackers||1 (min)||Record each skater's penalties.:36 Notify the head referee of skaters in the current jam who are in danger of fouling out.:3|
|Penalty Timers||2 (min)||Ensure skaters sent to the penalty box serve their penalties;:36 notify referees when a skater leaves the penalty box before her time is fully served.:3|
|Jam Timer||1||Responsible for starting jams and for ending jams that run to two minutes, timing the thirty seconds between jams,:36 and for calling an official timeout if the time between jams runs over 30 seconds.:36|
|Inside Whiteboard||1||Maintains a whiteboard in the center of the track that shows each skater's accumulated penalties.:36|
|Lineup||2||Responsible for recording every player on the track in each jam:5|
|Scoreboard Operator||1||Update each team's score after every scoring pass.:36:5|
Professional endurance races
The growing popularity of roller skating in the United States led to the formation of organized multi-day endurance races for cash prizes, as early as the mid-1880s. Speed and endurance races continued to be held on both flat and banked tracks in the century's first three decades and spectators enjoyed the spills and falls of the skaters. The term derby was used to refer to such races by 1922.[note 1]
Evolution to contact sport
The endurance races began to transform into the contemporary form of the sport in the mid-1930s, when promoter Leo Seltzer[note 2][note 3] created the Transcontinental Roller Derby, a month-long simulation of a road race between two-person teams of professional skaters. The spectacle became a popular touring exhibition. In the late 1930s, sportswriter Damon Runyon persuaded Seltzer to change the Roller Derby rules to increase skater contact. By 1939, after experimenting with different team and scoring arrangements, Seltzer's created a touring company of four pairs of teams (always billed as the local "home" team versus either New York or Chicago), with two five-person teams on the track at once, scoring points when its members lapped opponents.
In 1948, Roller Derby debuted on New York television—broadcasting well before television viewership was widespread. The broadcasts increased spectator turnout for live matches. For the 1949–1950 season, Seltzer formed the National Roller Derby League (NRDL). The NRDL consisted of six teams. NRDL season playoffs sold out Madison Square Garden for a week. During the late 1950s and 1960s, the sport was broadcast on several networks, but attendance declined. Jerry Seltzer (Leo's son), the RollerDerby "commissioner", hoped to use television to expand the live spectator base. He adapted the sport for television by developing scripted story lines, and rules designed to improve television appeal; derby's popularity declined in spite of this.
1989 saw the debut of RollerGames, a show which presented an even more theatrical variant of roller derby for national audiences, which ran one season for some of its distributors for syndication went bankrupt. It used a figure-8 track and different rules adapted for this track. Bill Griffiths, Sr. served as commissioner while his son, Bill Griffiths, Jr. served as manager for the L.A. T-Birds, who (according to the storylines) were seeking revenge on the Violators (led by Skull) for cheating in the Commissioner's Cup and stealing it from them when the Skull interfered with gameplay. The other teams included the Maniancs (led by Guru Drew), Bad Attitude (led by Ms. Georgia Hase), the Rockers (led by DJ Terringo and consisting of skaters that were also professional rock and roll musicians), and Hot Flash (led by Juan Valdez Lopez).
In 1999, Spike TV (TNN at the time) debuted RollerJam, which used exactly the same rules on just a banked oval track as classic roller derby, but allowed for inline skates to be used (although some skaters went with traditional quad skates). Jerry Seltzer was commissioner for this version.
Contemporary roller derby
Worldwide amateur female revival
Roller derby began its modern revival in the early 2000s as an all-female, woman-organized amateur sport. The revival initially began in Austin, Texas, and by August 2006 there were over 135 similar leagues. Leagues outside the U.S. also began forming in 2006, and international competition soon followed. There are over 1,200 amateur leagues worldwide in countries including, but not limited to, Canada, Australia, the United Kingdom, France, Brazil, New Zealand, Germany, Belgium, Finland, Norway, Sweden, Denmark, Israel, Singapore, Dubai, and Egypt (where, like many other international leagues, all of the gear and equipment must be imported). Roller derby's contemporary resurgence has been regarded as an aspect of globalization which demonstrates "the speed with which pop culture is now transported by highly mobile expatriates and social media, while also highlighting the changing role of women in many societies."
A large number of contemporary roller derby leagues are amateur, self-organized and all-female  and were formed in a DIY spirit by relatively new roller derby enthusiasts. In many leagues (particularly but not exclusively in the U.S.), a punk aesthetic and/or third-wave feminist ethic is prominent. Furthermore, roller derby teams are typically composed of members of various social strata such as stay-at-home mothers, lawyers, and nurses, and "Being gay/straight/bi/trans is simply no big deal, as long as you can skate." Members of fledgling leagues often practice and strategize together, regardless of team affiliation, between bouts. Most compete on flat tracks, though several leagues skate on banked tracks, with more in the planning stages.
Each league typically features local teams in public bouts which are popular with a diverse fan base; larger venues hosting audiences ranging from 4,000 to 7,000 are no longer unusual. Many leagues took advantage of the release of the roller derby feature film Whip It (2009), to increase awareness of the sport (which has also received cinéma vérité and high definition digital movie camera treatments).
As the sport has matured, successful local leagues have formed "travel teams" composed of the league's best players to compete with travel teams from other cities and regions. Furthermore, corporate advertising has used roller derby themes in television commercials for insurance, a breakfast cereal, and an over-the-counter analgesic. At the 123rd International Olympic Committee session in South Africa in February 2012, it was announced that roller derby was one of the eight sports under consideration for inclusion in the 2020 Olympic Games.
Most players in these leagues skate under pseudonyms, also called "derby names" or "skater names," many of which are creative examples of word play with satirical, mock-violent or sexual puns, alliteration, and allusions to pop culture, some of which are the subject of some controversy.
|Patti Smithereens||Patti Smith|
|Guinefear of Jamalot||Guinevere of Camelot|
|Michelle O'BamYa||Michelle Obama|
|Mazel Tov Cocktail||Mazel tov, Molotov cocktail|
|O Hell No Kitty||Hello Kitty|
|Sandra Day O'Clobber||Sandra Day O'Connor|
|Punky Bruiser||Punky Brewster|
|Roly Mary Mother of Quad||Holy Mary Mother of God|
|Stevie Knacks||Stevie Knicks|
|Ania Marx||On Your Marks|
|Princess Lay-Ya Flat||Princess Leia|
|Smack Ops||Black Ops|
|Trauma Queen||Drama Queen|
New players are often encouraged to check their name against an international roster to ensure novelty and uniqueness of the alias before officially using it. Some players claim their names represent alter egos which they adopt while skating. Referees may also choose to use derby names as well. The phenomenon of roller derby aliases has attracted legal and sociological analysis within the ambit of intellectual property and trademark law as an indigenous activity.
The names of the bouts, tournaments, or double-headers themselves are typically just as sardonic and convoluted — for example, Nightmare on Hull Street (Nightmare on Elm St.), Night of the Rolling Dead (Night of the Living Dead), Are You There Blocker? It's Me, Jammer (Are You There God? It's Me, Margaret), Knocktoberfest (Oktoberfest), Spanksgiving (Thanksgiving), Seasons Beatings (Seasons Greetings), Grandma Got Run Over By a Rollergirl (Grandma Got Run Over by a Reindeer), Skate & Destroy Her (Search and destroy, or The Faction's song Skate & Destroy), Mama Said Knock You Down (Mama Said Knock You Out), Cinco de May-hem (Cinco de Mayo), and War of the Wheels (War of the Worlds).
Teams mostly now opt for a uniform livery, in respect of the athleticism of the sport. Since 2011 onwards it has become uncommon for teams to wear costumes (sometimes called "boutfits") which were sometimes inspired by or comparable with rockabilly or burlesque fashions. Tutus and fishnet stockings are still commonly in evidence, however.[needs update] In addition to the on-track competition, some leagues emphasize entertainment with showy on-track behavior, half-time shows, and "penalty games" — unofficial competitive stunts between players such as arm wrestling, wheelchair races and the like. The extent to which such non-athletic stylizations are embraced varies from league to league, and continues to be a source of some contention.
Since roller derby is a contact sport, there is a risk of injury. Injuries range from common bruises and sprains to broken bones and concussions and beyond. As is the case with many sporting events and other large public gatherings, modern roller derby games are required to be played with EMTs on hand.:39 Some leagues prominently display their injuries, and safety and injuries are a perennial topic on skating blogs and other forums.
Although the early 2000s revival of roller derby was initially all-female, some leagues later introduced all-male teams and unisex games. Furthermore, as of May 2013 there were over 140 junior roller derby programs in the United States, and many more around the world. Despite being viewed by some as risqué adult-oriented entertainment, the positive empowering aspects of the sport are a draw for many youth.
As the sport of roller derby expands, so does the media devoted to the sport. Viewing roller derby bouts is now possible via live online streaming and archived footage of previous bouts and tournaments. The WFTDA offers live streaming video of its tournaments at wftda.tv, and WFTDA membership is a major goal of aspiring leagues. The Derby News Network offers live streaming video and archived video of many more roller derby bouts, both WFTDA events and non-WFTDA events at www.derbynewsnetwork.com/live.
FiveOnFive magazine is devoted solely to covering the sport of roller derby, and covers diverse topics regarding the sport such as business, training, junior roller derby, and nutrition.
Governance and organization
The largest governing body for the sport is the Women's Flat Track Derby Association, with 308 Full Member Leagues, and 99 Apprentice Leagues. Other associations support either coed or men-only derby; among them is the largest organization supporting the growing trend of male roller derby, MRDA. Within the United States, roller derby played by those under 18 is governed by the Junior Roller Derby Association, which uses the widely used rule set of the WFTDA, with modifications for players who are minors (such as no hitting, or accelerating into a block). Outside of the United States many roller derby leagues enjoy support from their national skate federations such as the Skate Australia, the British Roller Sports Federation, and Roller Sports Canada. In Europe, roller derby otherwise received recognition as a legitimate sport by the Federation Internationale de Roller Sports (FIRS) in Paris in 2010; this organization reports directly to the International Olympic Committee. Although affiliation with a national organization has been declined by American leagues who prefer governance on a grass roots level, the WFTDA and USARS maintain a reciprocity agreement for insurance purposes. Canada's national roller derby league works with the American federation.
Since 2006, the WFTDA has sponsored an annual championship. In 2008 this first took the modern form of the "Big 5": four regional playoffs, and a final championship tournament. The association also officially recognizes eligible tournaments hosted by member leagues. E.g., the annual SpudTown Knockdown, which is held in Boise, Idaho beforehand, is "the Best of the Rest of the West." The first Roller Derby World Cup, an international competition, took place in Toronto, Canada, in December 2011. The second World Cup took place in Dallas, Texas, in December 2014.
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- Rapp, Ilana (2013-02-19). "Does Joining Roller Derby Make You Gay?". Huffington Post.
- "Soldiers in the Roller Derby". Army Live.
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- "LA Derby Dolls – What's New". Derbydolls.com. Retrieved 31 August 2010.
- WFTDA 2011 Demographic Survey Results - Women's Flat Track Derby Association
- New Jersey Roller Derby packs thousands into Convention Hall - Video | NJ.com
- Loca, Chica. "Whip It-Marketing Session" (PDF). WFTDA. Retrieved 24 September 2011.
- "Skater 26". YouTube. 2013-02-10. Retrieved 2013-02-15.
- https://www.youtube.com/embed/9xPFC5qkJ1k Mutual of Omaha TV ad
- on YouTube
- on YouTube
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- "CNN.com Video". CNN.
- "Derby Names: Not Ready for Prime Time". DerbyLife. 2011-09-14. Retrieved 2011-09-24.
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- "Seattle Derby Brats – No Flash in the Pan". Retrieved 2010-08-23 "It's like your alter ego," Grianne says, "You don't want to be announced as Grianne Hunter. You want to be something tougher." Cite error: Invalid
<ref>tag; name "derby_brats" defined multiple times with different content (see the help page).
- Tracy "Justice Feelgood Marshall" Williams (2008-12-08). "Killbox retires (sort of)". Derby News Network. Retrieved 2008-12-30
- "Denver Roller Dolls — Teams — Mile High Club". Retrieved 2009-07-19.
This season, 13 of the team's members are making the switch from derby names to real names.
- Talk Derby to Me: Emergent Intellectual Property Norms Governing Roller Derby Pseudonyms by David Fagundes :: SSRN
- "Treasure Valley Rollergirls". Treasure Valley Rollergirls. Retrieved 2010-08-31.
- Sophia Kercher, "L.A.'s Derby Dolls setting the fashion pace", Los Angeles Times, 29 November 2009
- Carey, Steve (2008-06-12). "Thrills and spills on four wheels score a comeback". Victoria Times Colonist. Retrieved 2008-06-15 Skating on old-time quad skates, the typical roller girl could be described as hard-rock, tattooed, new-wave-burlesque or rockabilly.
- Emma Tom (2010-04-24). "Fishnets and mouthguards". The Australian. Retrieved 2010-08-31.
- "Article: Roller derby queens: short skirts, fishnets, and full contact. Inside the... | AccessMyLibrary – Promoting library advocacy". AccessMyLibrary. 2008-07-01. Retrieved 2010-08-31.
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- Oler, Tammy (Fall 2005). "Holy Rollers: Is roller derby the new burlesque?". Bitch (30). Retrieved 2008-06-15 Like mud wrestling, roller derby has historically been seen as a way to entertain largely male audiences with hot, dirty catfights. And with its bad-gal costumes and prospect of girl-on-girl bruising, roller derby still skates a fine line between sport and spectacle. Though modern skaters have reimagined the sport as a form of self-expression and performance (not unlike the recent feminist revival of burlesque), as well as an athletic contest, the titillation factor threatens to undermine the legitimacy of the game. And not surprisingly, recent media coverage of the sport has focused on the novelty of sexy girls in fishnets on four wheels. Spin called the sport "the best catfight on earth," while the Tucson Citizen quoted a male fan who opined, "For some spectators, the chance of getting a roller derby girl in their lap is a part of the attraction."
- "Exclusive: There's No Crying In Roller Derby!". Flavorwire. 2009-05-04. Retrieved 2010-08-31.
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- Launder, William (2006-02-28). "Women's roller derby leagues are bashing their way back into style". Columbia News Service. Archived from the original on April 18, 2008. Retrieved 2008-06-22 "injuries range from sprained ankles and dislocated shoulders to torn eyelashes and "fishnet burn" from sliding across the floor of the rink."
- "HelpTequila.com". Retrieved 2008-06-22 (Web site calling for donations to help a roller derby player who suffered a spinal cord injury).
- "Injury Gallery". Rat City Rollergirls. Archived from the original on October 26, 2007. Retrieved 2008-06-22
- "Pabst Bruise Gallery". Minnesota RollerGirls. Archived from the original on August 14, 2007. Retrieved 2008-06-22
- Ryder, Kari. "PCL Injuries in Roller Derby". Retrieved 2008-06-22
- Derby injuries? – SkateLog Forum
- "Roller Derby Crutch Crew (MySpace group)". Retrieved 2008-06-22
- name=Roller Derby Worldwide/"Roller Derby Worldwide".
- A nuanced appreciation of the "camp" aspect of roller derby
- name=WFTDA TV/"WFTDA TV".
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- "The State of Derby – Part II: OSDA and JRDA".
- "The State of Derby – Part III: Modern Athletic Derby Endeavor".
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- "About Roller Debry".
- "Roller Derby is now recognised as a sport in the UK, and UKRDA the National Association". Roller Derby Central. euroderby.org. Retrieved 2 October 2011.
- "Roller Derby". Roller Sports Canada.
- USA Roller Sports. "To Whom It May Concern" (PDF).
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- "USARS / WFTDA Reciprocity". USA Roller Sports. 24 June 2009. Retrieved 12 October 2011.
- "Welcome to the CWRDA". Roller Derby Association of Canada. Retrieved 12 October 2011.
- "THE BIG 5 WFTDA SPONSORED TOURNAMENTS". WFTDA. Retrieved 15 November 2011.
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- "Blood & Thunder Roller Derby World Cup 2011". Blood & Thunder Magazine. Retrieved 8 August 2011.
- "Dallas to Host 2014 Roller Derby World Cup". Blood & Thunder Magazine. Retrieved 14 December 2014.
|Wikimedia Commons has media related to Roller derby.|
- The Rules of Flat Track Roller Derby, published by WFTDA on March 1, 2014
- Roller derby at DMOZ
- Flat Track Stats – Statistical aggregation of WFTDA sanctioned roller derby