List of Pancrase champions explained

This is a list of Pancrase champions at each weight class. Pancrase is a Japan-based mixed martial arts (MMA) promoting and sanctioning organization founded in 1993. The champions of Pancrase are referred to by the title of "King of Pancrase" and "Queen of Pancrase".

Current champions

Men

width=120	Division	width=200	Champion	width=120	Since	Defenses
Openweight	Josh Barnett		align=center	2
Heavyweight	Vacant		align=center	-
Light Heavyweight	Vacant		align=center	-
Middleweight	Yura Naito		align=center	0
Welterweight	Ryuichiro Sumimura		align=center	0
Lightweight	Tatsuya Saika		align=center	0
Featherweight	Suguru Nii		align=center	0
Bantamweight	Tokitaka Nakanishi		align=center	0
Flyweight	Seiichiro Ito		align=center	1
Strawweight	Keito Yamakita		align=center	0

Women

width=120	Division	width=200	Champion	width=120	Since	Defenses
Bantamweight	Vacant		align=center	0
Flyweight	Shizuka Sugiyama		align=center	0
Strawweight	Haruka Hasegawa		align=center	0
Atomweight	Satomi Takano		align=center	0

Men's championship history

Openweight Championship

No weight restrictions

width=1%	No.	width=21%	Name	width=20%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Ken Shamrock def. Manabu Yamada	align=center	King of Pancrase tournament	align=center	Dec 17, 1994
2	align=left	Minoru Suzuki	align=center	Pancrase Eyes Of Beast 4	align=center	May 13, 1995
3	align=left	Bas Rutten	align=center	Pancrase 1995 Anniversary Show	align=center	Sep 1, 1995
-	align=left	Frank Shamrock^[1] def. Minoru Suzuki for interim title	align=center	Pancrase Truth 1	align=center	Jan 28, 1996
Rutten vacated the title in October 1996 for family matters.^[2]
4	align=left	Masakatsu Funaki def. Jason DeLucia	align=center	Pancrase Truth 10	align=center	Dec 15, 1996
5	align=left	Yuki Kondo	align=center	Pancrase Alive 4	align=center	Apr 27, 1997
6	align=left	Masakatsu Funaki (2)	align=center	Pancrase Alive 11	align=center	Dec 20, 1997
7	align=left	Guy Mezger	align=center	Pancrase Advance 5	align=center	Apr 26, 1998
Mezger vacated the title in February 1999 when he left Pancrase for the UFC.
8	align=left	Yuki Kondo (2) def. Semmy Schilt	align=center	Pancrase Breakthrough 4	align=center	Apr 18, 1999
9	align=left	Semmy Schilt	align=center	Pancrase Breakthrough 10	align=center	Nov 28, 1999
Schilt vacated the title in 2001 when he signed with the UFC.
10	align=left	Josh Barnett def. Yuki Kondo	align=center	Pancrase 10th Anniversary Show	align=center	Aug 31, 2003

Heavyweight Championship

Weight limit: 1201NaN1

On January 30, 2008 Pancrase revised this weight class limit from 1051NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Yoshiki Takahashi def. Shamoji Fujii	align=center	Pancrase Proof 7	align=center	Dec 1, 2001
Takahashi vacated the Heavyweight title.
2	align=left	Kestutis Arbocius def. Poai Suganuma	align=center	Pancrase Blow 6	align=center	Aug 27, 2006
Arbocius was stripped of Heavyweight title in May 2007 due to injury.
3	align=left	Assuerio Silva def. Tatsuya Mizuno	align=center	Pancrase Rising 5	align=center	May 30, 2007
Assuerio Silva vacated the title in January 2008 when he left the organization.

Light Heavyweight Championship

Weight limit: 931NaN1

Formerly known as Cruiserweight until 2008

On January 30, 2008 Pancrase revised this weight class limit from 951NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Keiichiro Yamamiya def. Ikuhisa Minowa	align=center	Pancrase 2000 Anniversary Show	align=center	Sep 24, 2000
Title Vacated.
2	align=left	Sanae Kikuta def. Ikuhisa Minowa	align=center	Pancrase 2001 Anniversary Show	align=center	Sep 30, 2001
3	align=left	Yuki Kondo	align=center	Pancrase Hybrid 10	align=center	Nov 30, 2003
Yuki Kondo vacated the title in January 2008 to move down to middleweight.
4	align=left	Ryo Kawamura def. Keiichiro Yamamiya	align=center	Pancrase Shining 8	align=center	Oct 1, 2008
Ryo Kawamura vacated the title in May 2011 to move down to middleweight.

Middleweight Championship

Weight limit: 841NaN1

On January 30, 2008 Pancrase revised this weight class limit from 851NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Nathan Marquardt def. Shonie Carter	align=center	Pancrase 2000 Anniversary Show	align=center	Sep 24, 2000
2	align=left	Kiuma Kunioku	align=center	Pancrase Proof 7	align=center	Dec 1, 2001
3	align=left	Nathan Marquardt (2)	align=center	Pancrase Spirit 9	align=center	Dec 21, 2002
4	align=left	Ricardo Almeida	align=center	Pancrase Hybrid 10	align=center	Nov 30, 2003
Almeida vacated the title in July 2004 when he retired from active competition.
5	align=left	Nathan Marquardt (3) def. Kazuo Misaki	align=center	Pancrase Brave 10	align=center	Nov 7, 2004
Marquardt vacated the title in October 2006 when he left Pancrase for the UFC.^[3]
6	align=left	Yuichi Nakanishi def. Izuru Takeuchi	align=center	Pancrase Blow 10	align=center	Dec 2, 2006
7	align=left	Izuru Takeuchi	align=center	Pancrase Rising 9	align=center	Nov 28, 2007
8	align=left	Ichiro Kanai	align=center	Pancrase: Changing Tour 8	align=center	Dec 6, 2009
-	align=left	Yuki Kondo promoted to interim champion after vacating the Light Heavyweight title	align=center	-	align=center	Jan 2008
9	align=left	Yuki Kondo def. Ichiro Kanai for undisputed title	align=center	Pancrase Passion Tour 4	align=center	Apr 29, 2010
10	align=left	Rikuhei Fujii	align=center	Pancrase: Passion Tour 11	align=center	Dec 5, 2010
Rikuhei Fujii vacated the title in May 2011.
11	align=left	Ryo Kawamura def. Ikkei Nagamura	align=center	Pancrase Progress Tour 1	align=center	Jan 28, 2012
12	align=left	Shinsho Anzai	align=center	Pancrase 259	align=center	June 29, 2014
Shinsho Anzai vacated the title when he signed with the UFC.
13	align=left	Ryo Kawamura (2) def. Yuki Niimura	align=center	Pancrase 281	align=center	Oct 2, 2016
14	align=left	Yuki Niimura	align=center	Pancrase 291	align=center	Nov 12, 2017
Niimura vacated the title when he signed with ONE Championship.
15	align=left	Yura Naito def. Ryo Kawamura	align=center	Pancrase 326	align=center	Mar 21, 2022

Welterweight Championship

Weight limit: 771NaN1

Formerly known as Lightweight until 2006

On January 30, 2008 Pancrase revised this weight limit from 751NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Kiuma Kunioku def. Takafumi Ito	align=center	Pancrase 2002 Neo-Blood tournament second round	align=center	Jul 28, 2002
Kunioku vacated the title in September 2004 when he left the organization.^[4]
-	align=left	Katsuya Inoue^[5] promoted to interim champion when opponent withdrew due to injury	align=center	-	align=center	?
2	align=left	Daizo Ishige def. Katsuya Inoue for undisputed title	align=center	Pancrase Blow 6	align=center	Aug 27, 2006
-	align=left	Katsuya Inoue^[6] def. Fabricio Nascimento for interim title	align=center	Pancrase 2007 Neo-Blood Tournament Finals	align=center	Jul 27, 2007
Daizo Ishige vacated the title in January 2008.
3	align=left	Katsuya Inoue def. Satoru Kitaoka for undisputed title	align=center	Pancrase Shining 1	align=center	Jan 30, 2008
Katsuya Inoue vacated the title in February 2008 in order to compete at Lightweight.
-	align=left	Takuya Wada def. Jason Palacios for interim title	align=center	Pancrase Shining 3	align=center	Apr 27, 2008
4	align=left	Takuya Wada	align=center	-	align=center	-
Takuya Wada vacated the title on April 30, 2010.
5	align=left	Kengo Ura def. Keiichiro Yamamiya	align=center	Pancrase Passion Tour 5	align=center	Jun 5, 2010
6	align=left	Takenori Sato	align=center	Pancrase Impressive Tour 1	align=center	Feb 6, 2011
Takenori Sato vacated the title when he signed with the UFC.
7	align=left	Gota Yamashita def. Akihiro Murayama	align=center	Pancrase 260	align=center	August 10, 2014
8	align=left	Shingo Suzuki	align=center	Pancrase 270	align=center	October 4, 2015
9	align=left	Akihiro Murayama	align=center	Pancrase 276	align=center	March 13, 2016
10	align=left	Hiromitsu Miura	align=center	Pancrase 281	align=center	October 2, 2016
11	align=left	Daichi Abe	align=center	Pancrase 288	align=center	July 2, 2017
Daichi Abe vacated the title when he signed with the UFC.
12	align=left	Glaico França def. Takashi Sato	align=center	Pancrase 297	align=center	July 1, 2018
Glaico França vacated the title when he signed with the PFL.^[7]
-	align=left	Hiroyuki Tetsuka def. Kenta Takagi for interim title	align=center	Pancrase 306	align=center	June 30, 2019
13	align=left	Hiroyuki Tetsuka promoted to undisputed champion	align=center	-	align=center	-
Hiroyuki Tetsuka vacated the title when he signed with the ONE Championship.^[8]
-	align=left	Masayuki Kikuiri def. Akihiro Murayama for interim title	align=center	Pancrase 324	align=center	October 16, 2021
14	align=left	Masayuki Kikuiri promoted to undisputed champion	align=center	-	align=center	May 26, 2022
Kikuiri vacated the title when he signed with Bellator.
15	align=left	Genpei Hayashi def. Akihiro Murayama	align=center	Pancrase 334	align=center	June 4, 2023
16	align=left	Ryuichiro Sumimura	align=center	Pancrase 340	align=center	December 24, 2023

Lightweight Championship

Weight limit: 701NaN1

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Shoji Maruyama def. Artur Oumakhanov	align=center	Pancrase Shining 1	align=center	Jan 30, 2008
Shoji Maruyama vacated the title in May 2008 to compete at Featherweight.
2	align=left	Katsuya Inoue def. Koji Oishi	align=center	Pancrase Shining 10	align=center	Dec 7, 2008
3	align=left	Maximo Blanco	align=center	Pancrase: Changing Tour 4	align=center	Aug 8, 2009
Maximo Blanco vacated the title in April 2011 citing an inability to defend his belt due to numerous injuries.^[9]
4	align=left	Koji Oishi def. Daisuke Hanazawa	align=center	Pancrase Impressive Tour 4	align=center	May 3, 2011
5	align=left	Isao Kobayashi	align=center	Pancrase Progress Tour 4	align=center	Apr 1, 2012
Isao Kobayashi vacated the title in 2014.
6	align=left	Kazuki Tokudome def. Satoru Kitaoka	align=center	Pancrase 271	align=center	November 1, 2015
7	align=left		align=center	Pancrase 280	align=center	September 11, 2016
-	align=left	Salimkhan Sadulloev def. Yusuke Kasuya for interim title	align=center	Pancrase 308	align=center	September 29, 2019
-	align=left	Tatsuya Saika def. Genpei Hayashi for interim title	align=center	Pancrase 318	align=center	September 27, 2020
-	align=left	Akira Okada def. Koshi Matsumoto for interim title	align=center	Pancrase 329	align=center	September 11, 2022
8	align=left	Akira Okada	align=center	Pancrase 333	align=center	April 30, 2023
9	align=left	Tatsuya Saika	align=center	Pancrase 341	align=center	March 31, 2024

Featherweight Championship

Weight limit: 661NaN1

Formerly known as Lightweight until 2008

On January 30, 2008 Pancrase revised this weight limit from 651NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Yoshiro Maeda def. Daiki "D.J.Taiki" Hata	align=center	Pancrase Blow 6	align=center	Aug 27, 2006
Yoshiro Maeda vacated the title when he left Pancrase for the WEC.
2	align=left	Marlon Sandro def. Masaya Takita	align=center	Pancrase: Shining 9	align=center	Oct 26, 2008
-	align=left	Takumi Nakayama def. Tomonari Kanomata for interim title	align=center	Pancrase Impressive Tour 9	align=center	Sep 4, 2011
Sandro was stripped of title for refusing to attend the title defense. ^[10]
3	align=left	Takumi Nakayama Promoted to undisputed champion.	align=center	-	align=center	August 9, 2012
4	align=left	Nam Phan	align=center	Pancrase 264	align=center	January 31, 2015
5	align=left	Andy Main	align=center	Pancrase 270	align=center	October 4, 2015
-	align=left	Issei Tamura def. Juntaro Ushiku for interim title	align=center	Pancrase 277	align=center	Apr 24, 2016
-	align=left	Nazareno Malegarie	align=center	Pancrase 285	align=center	Mar 12, 2017
6	align=left	Nazareno Malegarie promoted to undisputed champion	align=center	-	align=center	-
Andy Main was stripped of the title and Nazareno Malegarie was promoted to the Undisputed Champion in 2018.
-	align=left	Isao Kobayashi def. Koyomi Matsushima for interim title	align=center	Pancrase 295	align=center	Apr 15, 2018
Title Unification.
7	align=left	Isao Kobayashi def. Nazareno Malegarie for undisputed title	align=center	Pancrase 305	align=center	May 26, 2019
Kobayashi vacated the title when he signed with Bellator.
-	align=left	Tokitaka Nakanishi def. Shinsuke Kamei for interim title	align=center	Pancrase 328	align=center	July 18, 2022
8	align=left	Tokitaka Nakanishi promoted to undisputed champion	align=center	-	align=center	-
Nakanishi vacated the title when he choose to compete at Bantamrweight..
9	align=left	Suguru Nii def. Shinsuke Kamei	align=center	Pancrase 337	align=center	September 24, 2023

Bantamweight Championship

Weight limit: 611NaN1

In 2016 Pancrase revised this weight limit from 621NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Manabu Inoue def. Seiya Kawahara	align=center	Pancrase Shining 10	align=center	Dec 7, 2008
2	align=left	Shintaro Ishiwatari	align=center	Pancrase Impressive Tour 13	align=center	Dec 3, 2011
Ishiwatari was stripped of the title when he left Pancrase for Rizin.
-	align=left	Rafael Silva def. Masakatsu Ueda for interim title	align=center	Pancrase 296	align=center	May 20, 2018
3	align=left	Rafael Silva promoted to undisputed champion	align=center	-	align=center	-
Silva retired on October 7, 2022. Nakajima was promoted to full champion status. ^[11]
-	align=left	Taichi Nakajima def. Rui Imura for interim title	align=center	Pancrase 325	align=center	Dec 11, 2021
4	align=left	Taichi Nakajima promoted to undisputed champion	align=center	-	align=center	Oct 7, 2022
-	align=left	Ryo Tajima def. Toshinori Tsunemura for interim title	align=center	Pancrase 330	align=center	Dec 25, 2022
Nakajima vacated the title on November 16, 2023..
5	align=left	Tokitaka Nakanishi def. Yasuhiro Kawamura	align=center	Pancrase 340	align=center	December 24, 2023

Flyweight Championship

Weight limit: 571NaN1

In 2016 Pancrase revised this weight limit from 581NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Mitsuhisa Sunabe def. Takuya Eizumi	align=center	Pancrase: Changing Tour 3	align=center	Jun 7, 2009
2	align=left	Kiyotaka Shimizu	align=center	Pancrase Passion Tour 1	align=center	Feb 7, 2010
Shimizu was stripped of the title after losing to Ryuichi Miki in "champion's assessment bout" in Dec 2015.^[12]
3	align=left	Ryuichi Miki def. Yuki Yasunaga	align=center	Pancrase 279	align=center	July 24, 2016
4	align=left		align=center	Pancrase 285	align=center	Mar 12, 2017
5	align=left	Senzo Ikeda	align=center	Pancrase 289	align=center	Aug 20, 2017
-	align=left	Shohei Masumizu def. Masatatsu Ueda for interim title	align=center	Pancrase 307	align=center	Jul 21, 2019
-	align=left	Toru Ogawa def. Masatatsu Ueda for interim title	align=center	Pancrase 324	align=center	Oct 16, 2021
Ikeda vacated the title on January 24, 2022, in order to compete with ONE Championship.^[13]
6	align=left	Toru Ogawa promoted to undisputed champion	align=center	-	align=center	-
7	align=left	Satoru Enomoto	align=center	Pancrase 326	align=center	March 21, 2022
8	align=left	Rei Tsuruya	align=center	Pancrase 330	align=center	December 25, 2022
-	align=left	Seiichiro Ito def. Naoki Arikawa for interim title	align=center	Pancrase 340	align=center	December 24, 2023
Tsuruya vacated the title on April 3, 2024.
9	align=left	Seiichiro Ito promoted to undisputed champion	align=center	-	align=center	April 3, 2024

Strawweight Championship

Weight limit: 521NaN1

In 2016 Pancrase revised this weight limit from 501NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Mitsuhisa Sunabe	align=center	Pancrase 271	align=center	Nov. 1, 2015
2	align=left	Daichi Kitakata	align=center	Pancrase 307	align=center	July 21, 2019	1. def. Yuta Miyazawa at Pancrase 325 on Dec. 12, 2021 in Tokyo, Japan
3	align=left	Keito Yamakita	align=center	Pancrase 328	align=center	July 18, 2022
-	align=left	Ryohei Kurosawa def. Takafumi Ato for interim title	align=center	Pancrase 342	align=center	April 29, 2024

Women's championship history

Women's Bantamweight Championship

Weight limit: 611NaN1

In 2016 Pancrase revised this weight limit from 621NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Rin Nakai def. Danielle West	align=center	Pancrase Progress Tour 14	align=center	Dec 1, 2012
Nakai vacated the title in 2018 when she left Pancrase for the DEEP.

Women's Flyweight Championship

Weight limit: 571NaN1

In 2016 Pancrase revised this weight limit from 581NaN1 to its current limits.

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Sidy Rocha def. Takayo Hashi	align=center	Pancrase 304	align=center	Apr 14, 2019
-	align=left	Takayo Hashi def. Nori Date for interim title	align=center	Pancrase 324	align=center	October 16, 2021
2	align=left	Takayo Hashi promoted to undisputed champion	align=center	-	align=center	March 30, 2023	1. def. Nori Date at Pancrase 333 on April 30, 2023 in Tokyo, Japan
3	align=left	Honoka Shigeta	align=center	Pancrase 341	align=center	March 31, 2024
4	align=left	Shizuka Sugiyama	align=center	Pancrase 346	align=center	July 21, 2024

Women's Strawweight Championship

Weight limit: 521NaN1

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Syuri Kondo def. Kinberly Tanaka Novaes	align=center	Pancrase 287	align=center	May 28, 2017
Kondo vacated the title in September 2017 when she left Pancrase for the UFC.
2	align=left	Viviane Araujo def. Emi Fujino	align=center	Pancrase 298	align=center	Aug. 5, 2018
Araujo vacated the title in 2019 when she signed with the UFC.
3	align=left	Emi Fujino def. Hyun Ji Jang	align=center	Pancrase 311	align=center	December 8, 2019
4	align=left	Karen	align=center	Pancrase 326	align=center	March 21, 2022
5	align=left	Haruka Hasegawa	align=center	Pancrase 333	align=center	April 30, 2023

Women's Atomweight Championship

Weight limit: 47.61NaN1

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Satomi Takano def. Sayako Fujita	align=center	Pancrase 341	align=center	March 31, 2024

Defunct titles

Super Heavyweight Championship

Weight limit: unlimited

On January 30, 2008 Pancrase adopted a variant of Unified Rules of Mixed Martial Arts and retires the super heavyweight championship.^{[14] [15]}

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Tsuyoshi Kosaka def. Ron Waterman	align=center	Pancrase Brave 10	align=center	Nov 7, 2004
Kosaka vacated the title in January 2006.

Light Flyweight Championship

Weight limit: 541NaN1

This weight class was disabled in 2016

width=1%	No.	width=23%	Name	width=18%	Event	width=12%	Date	width=46%	Defenses
1	align=left	Mitsuhisa Sunabe def. Hiroyuki Abe	align=center	Pancrase Impressive Tour 13	align=center	Dec 3, 2011
Sunabe vacated title when he dropped to compete in a lower weight class.
2	align=left	Kento Kambe def. Yukitaka Musashi	align=center	Pancrase 273	align=center	Dec. 13, 2015

By nationality

The following include championship title holders by nationality.

Country	Titles
Japan	65
United States	10
Brazil	6
Netherlands	2
	1
Lithuania	1
Argentina	1

See also

• List of current mixed martial arts champions
• List of Bellator MMA champions
• List of Dream champions
• List of EliteXC champions
• List of Invicta FC champions
• List of ONE Championship champions
• List of Pride champions
• List of PFL champions
• List of Road FC champions
• List of Shooto champions
• List of Strikeforce champions
• List of UFC champions
• List of WEC champions
• Mixed martial arts weight classes

External links

• Pancrase Official Site
• http://www.pancrase.com
• Wrestling-Titles.com: Pancrase

Notes and References

1. Rutten was injured in January 1996 and could not defend his title; Shamrock captured an interim championship en route to his title-unification fight with Rutten.
2. Web site: King of Pancrase Title History. 2007-02-22 . Quebrada.net.
3. News: Breen. Jordan. With Eye on UFC, Marquardt Relinquishes KOP Belt. 2006-10-23. 2007-02-15. Sherdog.com.
4. News: Fukui. Masa. Former Welterweight & Middleweight King of Pancrase Kiuma Kunioku. 2004-09-15. 2007-02-21. Sherdog.com.
5. Web site: News Page 17: Pancrase 2005 Spiral Tour. 2007-02-21. StarzWorld.com. dead. https://web.archive.org/web/20070316092201/http://www.starzworld.com/news_page_17.htm. 2007-03-16.
6. News: Nowe. Jason. Inoue Takes Interim King of Pancrase Title. 2004-07-27. 2007-07-28. Sherdog.com.
7. Web site: Kenta Takagi replaces Hiromitsu Miura in Pancrase 306 headliner. May 29, 2019. asianmma.com.
8. Web site: Akihiro Murayama faces Masayuki Kikuiri in interim welterweight title fight at Pancrase 3241 . August 17, 2021. asianmma.com.
9. Web site: Blanco Abdicates Pancrase Throne; Lightweight GP Begins May 3 . Nelson . Chris . Sherdog.com . 2011-04-11 . 2011-04-11.
10. Web site: http://sportsnavi.yahoo.co.jp/fight/headlines/20120809-00000022-spnavi-fight.html. ja:マルロン・サンドロがパンクラス王座返上 タクミが正規王者に昇格. Japanese. Sports Navi. September 30, 2012. https://archive.today/20130112032636/http://sportsnavi.yahoo.co.jp/fight/headlines/20120809-00000022-spnavi-fight.html. January 12, 2013. dead.
11. Web site: 2022-10-07 . パンクラス 12.25 横浜武道館：中島太一のバンタム級王座に4連勝中のTSUNEが挑戦。石渡・瀧澤・金太郎・佐藤将光と戦ったハファエル・シウバは引退 BOUTREVIEW . 2022-10-07 . ja.
12. News: Breen. Jordan. 'TUF 12' Winner Brookins Rematches Ishiwatari for BW Crown at Pancrase 279 Title Doubleheader. 2016-05-16. 2016-06-01. Sherdog.com.
13. Web site: 【パンクラス】仙三がフライ級王座返上、正規王者となった小川徹が早くも1位・猿飛流の挑戦を受ける . efight.jp . 25 January 2022.
14. http://www.mmafighting.com/news/2007/pancrase_to_adopt_unified_rules_of_mma_weight_classes.html MMAFighting.com - Pancrase to adopt Unified Rules of MMA weight classes
15. http://www.pancrase.co.jp/en/ Pancrase Official Site