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| Sport | Rugby union |
|---|---|
| Formerly known as | Top League (2003–2021) |
| Instituted | 2003; 22 years ago (2003) |
| Inaugural season | 2003–04 |
| Number of teams | |
| Country |  Japan |
| Champions | Brave Lupus Tokyo (2024–25) |
| Most titles | Brave Lupus Tokyo (7 titles) |
| Website | league-one.en |
| Broadcast partner | |
| Related competition | |
Japan Rugby League One (Japanese:ジャパンラグビーリーグワン,romanized: Japanragubīrīguwan), formerly known as theTop League (Japanese:トップリーグ,romanized: Toppurīgu), is arugby union competition in Japan. It is the highest level of industrial-professional rugby competition in the country. TheJapan Rugby Football Union created the competition in 2003, by absorbing theJapan Company Rugby Football Championship. The chief architect of the league wasHiroaki Shukuzawa who strongly felt the urgency of improving Japanese domestic company rugby to a professional level which would allow Japan to compete more convincingly at Rugby World Cups.
It is an industrial league, where many players are employees of their company and the teams were all owned by major companies. While the competition was known for paying high salaries, only world-class foreign players and a small number of Japanese players played fully professionally, which meant most of the players still played in an amateur capacity. The delayed 2021 season was the final season of the Top League, with the JRFU adopting a new fully-professional three-tier system from 2022.[1] Despite this measure,the league still remains as a mix of professional and employee players and it has not yet transitioned to a fully professional competition. More details about the new structure was announced to the media in January 2021. Featuring 25 teams, the 12 top-tier clubs would be split into two conferences, with seven teams competing in division two and six in division three.[2] The new competition was formally announced as Japan Rugby League One in July 2021.[3]
The first season in 2003–04 featured 12 teams. The league was expanded to 14 teams in 2006–07 and 16 teams in 2013–14. While Japan Rugby League One's season[4] overlaps with the start ofSuper Rugby's season,[5] the Top League played during the off-season of theSuper Rugby. Therefore, many full-time foreign professionals from Southern Hemisphere countries played in the Top League, notablyTony Brown,George Gregan andDan Carter. In the 2010s, salaries in the Top League rose to become some of the highest in the rugby world[citation needed]; in 2012, South Africa'sJaque Fourie, now withKobelco Steelers, was widely reported to be the world's highest-paid player.[6]
Since 2022, the Japan Rugby League One (JRLO) had three divisions with Division 1 being the top-flight division and holding the most teams.
Level | Total clubs (26) | League(s) / division(s) | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 12 | Japan Rugby League One – Division 1 | |||||||||||||||||||||||||||||||
2 | 8 | Japan Rugby League One – Division 2 | |||||||||||||||||||||||||||||||
3 | 6 | Japan Rugby League One – Division 3 | |||||||||||||||||||||||||||||||
A second-tierTop League Challenge Series was also introduced in 2003. Between 2003–04 and 2016–17, teams from three regional leagues would qualify to this post-season competition, in which they could either win promotion to the next season's Top League, or qualify to promotion play-off matches.
In 2017, a second-tierTop Challenge League was introduced, to operate in a league format above the regional leagues.[9]
The regional leagues are:
With the creation of Rugby League One and its three divisions, theraison d'etre for the Top Challenge League ceased to exist, and it was discontinued.
In 2025 it was announced that Japan Rugby League One would receive one berth in the inaugural 2028Rugby Club World Cup organised byEuropean Professional Club Rugby (EPCR), along with eight sides from EPCR and seven fromSuper Rugby Pacific.
The first season began with 12 teams:
Toshiba won the inaugural Top League title by finishing on top of the round-robin competition. The top eight teams qualified for the inauguralMicrosoft Cup. Toshiba went on to lose the final of Microsoft Cup to NEC, but the cup was considered a separate competition to the Top League prior to 2007. Secom and Sanix were relegated at the end of the season. IBM and Toyota were promoted.
Following the2004 Challenge series with IBM and Toyota being promoted, the following 12 teams competed in the second season:
Toshiba won both the league round-robin and the Microsoft Cup knockout competition contested by the top 8 teams after the regular season. The eleventh and twelfth teams (Kintetsu and IBM) were automatically relegated, and the ninth and tenth placed teams (World and Ricoh) had to win their2005 promotion and relegation play-offs (Irekaesen) to stay in the Top League, which they did.
After the pre-season2005 Challenge series, Secom and Sanix returned after a year out of the league, replacing Kintetsu and IBM. The following 12 teams competed in the third season:
Toshiba again won both the league round-robin and theMicrosoft Cup knockout competition contested by the top 8 teams after the regular season. Coca-Cola West Japan (now Coca-Cola West Red Sparks) gained promotion to the League at the end of the season. IBM also gained promotion to return to the league.
The number of teams was increased from 12 to 14. Coca-Cola West Red Sparks became the second Kyushu-based team in the Top League. IBM returned to the league.
The top four teams in the league played in theMicrosoft Cup which was officially integrated into the league from this season as the "Top League Play-off Tournament Microsoft Cup". Toshiba won the cup and also won theAll-Japan Championship. Secom and World (13th and 14th) were automatically relegated, to be replaced byKyuden Voltex, the third team from Kyushu to enter the league, andMitsubishi Sagamihara DynaBoars from Kanto.
Kyuden Voltex andMitsubishi Sagamihara DynaBoars joined the league for the first time. The following 14 teams were in the Top League in the 2007–08 season:
The top four teams (Sanyo, Suntory, Toyota and Toshiba) played in the fifthMicrosoft Cup to decide the league champion. Suntory beat Sanyo 14–10 in the final to become the 2007–08 champions. Mitsubishi (14th) and Ricoh (13th) were automatically relegated.
Kintetsu Liners returned to the league, and Yokogawa Denki were promoted for the first time (and renamedYokogawa Musashino Atlastars in the off season). They replacedRicoh Black Rams andMitsubishi Sagamihara DynaBoars. The following teams were in the league:
IBM Big Blue and Yokogawa Atlastars were automatically relegated at the completion of the 2008–9 season for finishing 13th and 14th. Ricoh and Honda won promotion through the Top Challenge series. Kyuden and Sanix retained their places in Top League when they won their respective promotion and relegation play-offs. The following teams were in the league:
Honda Heat andKyuden Voltex were automatically relegated at the completion of the 2009–10 season for finishing 13th and 14th.Toyota Industries Shuttles andNTT Communications Shining Arcs won promotion through the Top Challenge series. The following teams were in the league:
The top 4 sides (Toshiba, Sanyo, Toyota and Suntory) from the regular season competed in a knock out tournament to fight for the Top League title. In the final, Sanyo defeated Suntory 28–23.
NTT Shining Arcs and Yamaha Jubilo which won their2005 promotion/relegation play-offs (Irekaesen) against Canon Eagles and Kyuden Voltex to retain their places for the 2011–12 season. The following teams were in the league:
The top 4 sides of the regular season (Suntory, Toshiba, Sanyo, and NEC) competed in the 2012Top League Champions Cup knock-out tournament for the Top League title atChichibu, Tokyo. Suntory defeated Sanyo 47–28 in the final to win the title. Both teams met again a few weeks later in the final of the 49thAll-Japan Rugby Football Championship.
Additionally, in theWildcard play-offs, the Top League teams ranked 5th and 8th (Kintetsu Liners and Yamaha Jubilo) played each other atHanazono, Osaka, as did the teams ranked 6th and 7th (Kobe Steelers and Ricoh Black Rams), with the winners (Kobe and Yamaha) also qualifying for the All-Japan Rugby Football Championship.
![[icon]](/mt/?noimg=&dark=on&url=https%3a%2f%2fen.wikipedia.org%2fwiki%2fFile%3aWiki_letter_w_cropped.svg) | This sectionneeds expansion. You can help byadding to it.(October 2014) |
| Club | Title(s) | Runners-up | Seasons won | Seasons runner-up |
|---|---|---|---|---|
 Brave Lupus Tokyo | 7 | 3 | 2004–05,2005–06,2006–07,2008–09,2009–10,2023–24,2024–25 | 2003–04,2012–13,2015–16 |
  Saitama Wild Knights[a][b] | 6 | 8 | 2010–11,2013–14,2014–15,2015–16,2021,2022 | 2007–08,2008–09,2009–10,2011–12,2016–17,2017–18,2022–23,2023–24 |
| Tokyo Sungoliath[c] | 5 | 7 | 2007–08,2011–12,2012–13,2016–17,2017–18 | 2005–06,2006–07,2010–11,2013–14,2018–19,2021,2022 |
 Spears Tokyo Bay | 1 | 1 | 2022–23 | 2024–25 |
| Green Rockets Tokatsu[d] | 1 | 0 | 2003–04 | — |
 Kobe Steelers | 1 | 0 | 2018–19 | — |
 Shizuoka Blue Revs[e] | 0 | 2 | — | 2004–05,2014–15 |
| Prefecture | Clubs | Title(s) | Runners-up | Seasons won | Seasons runner-up |
|---|---|---|---|---|---|
| Tokyo Prefecture | 12 | 10 | 2004–05,2005–06,2006–07,2007–08,2008–09,2009–10,2011–12,2012–13,2016–17,2017–18,2023–24,2024–25 | 2003–04,2005–06,2006–07,2010–11,2012–13,2013–14,2015–16,2018–19,2021,2022 | |
| Gunma Prefecture | Saitama Wild Knights[a][b] | 5 | 6 | 2010–11,2013–14,2014–15,2015–16,2021 | 2007–08,2008–09,2009–10,2011–12,2016–17,2017–18 |
| Chiba Prefecture | 2 | 1 | 2003–04,2022–23 | 2024–25 | |
| Saitama Prefecture | Saitama Wild Knights[a][b] | 1 | 2 | 2022 | 2022–23,2023–24 |
| Hyogo Prefecture | Kobe Steelers | 1 | 0 | 2018–19 | — |
| Shizuoka Prefecture | Shizuoka Blue Revs[e] | 0 | 2 | — | 2004–05,2014–15 |
The following foreign players that have played in the Top League have either won or been nominated for a major IRB award, played in a Rugby World Cup, played for a combined-nations touring side, or captained their national team.
 Kieran Read (2007–2021) | – 2011, 2015 and 2019 World Cups (2015 Champions) |
| Ben Smith (2007–2022) | – 2015 and 2019 World Cups (2015 Champions) |
| Aaron Cruden (2010–2023) | – 2011 World Cup (Champions) |
| Beauden Barrett (2011–present) | – 2015 and 2019 World Cups (2015 Champions) |
| TJ Perenara (2012–present) | – 2015 and 2019 World Cups (2015 Champions) |
| Sam Whitelock (2010–present) | – 2011, 2015 and 2019 World Cups (2015 Champions) |
| Matt Todd (2011–2023) | – 2019 World Cup |
| Brodie Retallick (2012–present) | – 2015 and 2019 World Cups (2015 Champions) |
| Dan Carter (2018–2020) | – 2003, 2007, 2011 and 2015 World Cups (2011 and 2015 Champions) |
| Ma'a Nonu (2011–2020) | – 2003, 2007 and 2011 World Cups (2011 Champions) |
| Sonny Bill Williams (2012–2020) | – 2011 and 2015 World Cups (2011 and 2015 Champions) |
| Ryan Crotty (2009–2020) | – 2019 World Cup |
| Jerome Kaino (2004–2018) | – 2011 and 2015 World Cups (2011 and 2015 Champions) |
| Rico Gear (1999–2010) | – 20-capped New Zealand international |
| Leon MacDonald (1997–2010) | – 2003 and 2007 World Cups |
| Reuben Thorne (1996–2009) | – 1999, 2003 and 2007 World Cups |
| Jerry Collins (1999–2015) | – 2003 and 2007 World Cups |
| Tony Brown (1999–2011) | – 1999 World Cup |
 Quade Cooper (2006–2025) | – 2011 World Cup |
| Adam Ashley-Cooper (2017–2018) | – 2007, 2011 and 2015 World Cups |
| Berrick Barnes (2013–2020) | – 2007 and 2011 World Cups |
| Matt Cockbain (2004–2006) | – 1999 and 2003 World Cups (1999 Champions) |
| David Pocock (2016–2018) | – 2010 and 2011 IRB Player of the Year nominee; 2011 and 2015 World Cups |
| Bernard Foley (2015–2016) | – 2015 World Cup |
| Matt Giteau (2017–2020) | – 2003, 2007 and 2015 World Cups |
| Mark Gerrard (2010–2018) | – 2003 and 2007 World Cups |
| George Gregan (2008–2011) | – 1999, 2003 and 2007 World Cups (1999 Champions); 2003 and 2007 World Cup Team Captain |
| George Smith (2011–2018) | – 2001 IRB Player of the Year nominee; 2003 and 2007 World Cups |
| Digby Ioane (2017–2019) | – 2011 World Cup |
| Toutai Kefu (2004–2010) | – 1999 and 2003 World Cups (1999 Champions) |
| Stephen Larkham (2008–2011) | – 1999, 2003 and 2007 World Cups (1999 Champions) |
| Nathan Grey (2003–2011) | – 1999 and 2003 World Cups (1999 Champions) |
| Ben McCalman (2015–2016) | – 2011 and 2015 World Cups |
| Sean McMahon (2017–present) | – 2015 World Cup |
| Wycliff Palu (2016–2017) | – 2007, 2011 and 2015 World Cups |
| Joe Roff (2005–2006) | – 1999 and 2003 World Cups (1999 Champions) |
| Craig Wing (2010–2013) | – Australian Rugby League international |
 Colin Yukes | – 2003 and 2007 World Cups |
 James Haskell (2011–2012) | – 2011 World Cup |
| George Kruis (2020–2022) | – 2015 and 2019 World Cups |
| Joe Launchbury (2022–2023) | – 2015 and 2019 World Cups |
| Geoff Parling (2017–2018) | – 2012British and Irish Lions |
 Kele Leawere | – 2003 and 2007 World Cups |
| Nemani Nadolo | – 2015 World Cup |
| Marika Vunibaka | – 1999 and 2003 World Cups |
 Seilala Mapusua | – 2007 and 2011 World Cups; 2004, 2006 and 2008Pacific Islanders international |
| Semo Sititi | – 1999, 2003 and 2007 World Cups; 2007 World Cup Team Captain; 2004, 2006 and 2008Pacific Islanders international |
| Alesana Tuilagi | – 2007 and 2011 World Cups; 2006Pacific Islanders international |
 Thinus Delport (2008–2010) | – 2003 World Cup |
| Jacque Fourie | – 2006 and 2009 IRB Player of the Year nominee |
| Fourie du Preez (2011–2016) | – 2007 and 2011 World Cups (2007 Champions) |
| Danie Rossouw | – 2003, 2007 and 2011 World Cups (2007 Champions) |
| Jaco van der Westhuyzen | – 2003 World Cup Team Captain |
| Kwagga Smith (2018–present) | – 2019 World Cup |
| Faf de Klerk (2022–present) | – 2019 World Cup |
 Pierre Hola | – 2003 and 2007 World Cups |
| Hale T-Pole | – 2007 World Cup |
| Sione Tuʻipulotu | – 1999 and 2007 World Cups |
 Todd Clever | – 2003, 2007 and 2011 World Cups; former USA captain |
| Mike Hercus (2008–2009) | – 2003 and 2007 World Cups |
 Shane Williams | – 2003, 2007 and 2011 World Cups; 2005, 2009 and 2013British and Irish Lions |
| Governing body | |||||||||||
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| Competitions |
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