List of Shooto champions

This is a list of Shooto world champions at each weight class. Shooto is a Japan-based mixed martial arts (MMA) promoting and sanctioning organization founded first in 1985 as a particular fighting system, and then in 1989 as an MMA promotion.

Shooto used to promote different weight classes than the Association of Boxing Commissions, which are used by most MMA promotions. On January 1, 2015, weight limits were changed to the divisions established by the Nevada State Athletic Commission.[1] Then, on January 1, 2017, the names of the weight classes were also changed to the names established by NSAC.[2]

Current champions

Men
Division Champion Since Defenses
Middleweight Vacant April 14, 2012 —
Welterweight Brazil Hernani Perpetuo August 25, 2013 0
Lightweight Japan Yamato Nishikawa September 20, 2021 0
Featherweight Japan Sasuke July 25, 2021 2
Bantamweight Japan Tatsuya Ando March 21, 2022 0
Flyweight Japan Jo Arai November 19, 2023 0
Strawweight September 19, 2022 1
Women
Division Champion Since Defenses
Strawweight Japan Emi Fujino May 18, 2024 0
Super Atomweight Japan Ayaka Watanabe May 21, 2023 0
Atomweight Japan Chihiro Sawada November 27, 2022 1

Men's championships

Middleweight Championship

Weight limit of 83.9 kg (185 lb)
The weight limit was 83 kg (183 lb) prior to January 1, 2015. The Middleweight Championship was known as the Light Heavyweight Championship prior to January 1, 2017.[3]

No. Name Event Date Reign
(total)		 Defenses
1 Japan Kenji Kawaguchi
def. Manabu Yamada 		Shooto: Shooto
Tokyo, Japan 		May 31, 1991 1,803 days

1. def. Satoshi Honma on October 17, 1991
2. def. Manabu Yamada on July 23, 1992
3. drew with Satoshi Honma on November 27, 1992

2 United States Erik Paulson Shooto: Vale Tudo Junction 3
Tokyo, Japan 		May 7, 1996 1,605 days

1. def. Masanori Suda on August 29, 1998

Paulson vacated the title on September 28, 2000 when he retired from the sport.
3 Japan Masanori Suda
def. Lance Gibson 		Shooto: Treasure Hunt 1
Tokyo, Japan 		January 12, 2002 1,497 days

1. def. Egan Inoue on May 9, 2003
2. drew with Dustin Denes on July 9, 2004

Suda vacated the title on February 17, 2006, at his retirement ceremony.
4 Japan Shiko Yamashita
def. Dustin Denes 		Absolute Fighting Championships 16
Boca Raton, FL, US 		April 22, 2006 449 days
5 Afghanistan Siyar Bahadurzada Shooto: Back To Our Roots 4
Tokyo, Japan 		July 15, 2007 1,735 days

1. def. Leandro Silva on August 27, 2009
2. def. Carlos Alexandre Pereira on August 6, 2010

Bahadurzada vacated the title on April 14, 2012 after signing with the UFC.[citation needed]

Welterweight Championship

Weight limit of 77.1 kg (170 lb)
The weight limit was 77 kg (169.8 lb) prior to January 1, 2015. The Welterweight Championship was known as the Middleweight Championship prior to January 1, 2017.[4]

No. Name Event Date Reign
(total)		 Defenses
1 Japan Yasuto Sekishima
def. Yoshimasa Ishikawa 		Shooto: Shooto
Tokyo, Japan 		May 12, 1990 448 days

1. drew with Naoki Sakurada on November 28, 1990

2 Japan Yoshimasa Ishikawa Shooto: Shooto
Tokyo, Japan 		August 3, 1991 ? days
Ishikawa vacated the title in 1991 to compete as a lightweight.
3 Japan Naoki Sakurada
def. Yasuto Sekishima 		Shooto: Shooto
Osaka, Japan 		October 17, 1991 1,920 days

1. def. Kazuhiro Kusayanagi on September 25, 1992

Sakurada vacated the title on January 18, 1997, when he retired.
4 Japan Hayato "Mach" Sakurai Shooto: Las Grandes Viajes 3
Tokyo, Japan 		May 13, 1998 1,201 days

1. def. Tetsuji Kato on March 17, 2000

5 Brazil Anderson Silva Shooto: To The Top 7
Osaka, Japan 		August 26, 2001 136 days
Silva vacated the title on January 9, 2002, after signing with Pride.
6 United States Jake Shields
def. Ray Cooper 		Shooto Hawaii: Soljah Fight Night
Honolulu, HI, US 		July 9, 2004 158 days
7 Japan Akira Kikuchi Shooto: Year End Show 2004
Tokyo, Japan 		December 14, 2004 430 days
8 Japan Shinya Aoki Shooto: The Victory of the Truth
Tokyo, Japan 		February 17, 2006 1,554 days

1. def. Akira Kikuchi on February 17, 2007

Aoki vacated the title on May 21, 2010 after years of not defending it, fighting for other promotions, and fighting primarily as a lightweight.
9 Brazil Luis Ramos
def. Igor Fernandes 		Shooto Brazil 17
Rio de Janeiro, Brazil 		August 6, 2010 368 days
Ramos vacated the title on August 9, 2011, after signing with the UFC.[5]
10 Brazil Hernani Perpetuo
def. Tommy Depret 		Shooto: Gig Tokyo 15
Tokyo, Japan 		August 25, 2013 4,107 days
(incumbent)

Lightweight Championship

Weight limit of 70.3 kg (155 lb)
The weight limit was 70 kg (154.3 lb) prior to January 1, 2015. The Lightweight Championship was known as the Welterweight Championship prior to January 1, 2017.[6]

No. Name Event Date Reign
(total)		 Defenses
1 Japan Yuichi Watanabe
def. Kazuhiro Kusayanagi 		Shooto: Shooto
Tokyo, Japan 		March 29, 1991 149 days
Watanabe vacated the title on August 25, 1991 for unknown reasons.
2 Japan Tomonori Ohara
def. Yoshimasa Ishikawa 		Shooto: Shooto
Osaka, Japan 		October 17, 1991 ? days

1. def. Yomohiro Tanaka on September 25, 1992

Ohara announced his retirement in November 1992 and thus vacated the title.
3 Japan Yuki Nakai
def. Kazuhiro Kusayanagi 		Shooto: Vale Tudo Access 2
Tokyo, Japan 		November 7, 1994 ? days
Nakai suffered an eye injury at Vale Tudo Japan 1995 which forced him into retirement in April 1995.
4 Japan Caol Uno
def. Rumina Sato 		Shooto: 10th Anniversary Event
Yokohama, Japan 		May 29, 1999 568 days

1. def. Rumina Sato on December 17, 2000

Uno vacated the title on December 17, 2000 to compete in the UFC.
5 Japan Takanori Gomi
def. Rumina Sato 		Shooto: To The Top Final Act
Urayasu, Japan 		December 16, 2001 602 days

1. def. Dokonjonosuke Mishima on December 14, 2002

6 Norway Joachim Hansen Shooto: 8/10 in Yokohama Cultural Gymnasium
Yokohama, Japan 		August 10, 2003 126 days
7 Brazil Vítor Ribeiro Shooto: Year End Show 2003
Urayasu, Japan 		December 14, 2003 366 days
8 Japan Tatsuya Kawajiri Shooto: Year End Show 2004
Tokyo, Japan 		December 14, 2004 770 days

1. def. Joachim Hansen on February 17, 2006

Kawajiri vacated the title on January 23, 2007, after suffering a knee injury which prevented him from defending his title in the mandatory time period per Shooto regulations.
9 Japan Takashi Nakakura
def. Ganjo Tentsuku 		Shooto: Shooto Tradition 1
Tokyo, Japan 		May 3, 2008 506 days
Nakakura vacated the title on September 21, 2009, declaring that he wasn't ready to properly defend it after losing a non-title fight to Takanori Gomi.[7]
10 Brazil Willamy Freire
def. Kenichiro Togashi 		Vale Tudo Japan 2009
Tokyo, Japan 		October 30, 2009 212 days

1. def. Yusuke Endo on May 30, 2010

Freire vacated the title on May 30, 2010 to compete in the UFC.[8]
11 Japan Kuniyoshi Hironaka
def. Kotetsu Boku 		Shooto: Shootor's Legacy 3
Tokyo, Japan 		July 18, 2011 1,595 days

1. def. Giovani Diniz on May 18, 2012
2. def. Yoshihiro Koyama on September 29, 2013

Hironaka vacated the title on November 29, 2015 for unknown reasons.[9]
12 Japan Koshi Matsumoto
def. Yuki Kawana 		Mobstyles Present Fight & Mosh
Tokyo, Japan 		April 23, 2016 1,394 days

1. def. Yuki Okano on March 25, 2018
2. def. Naoyuki Kotani on May 6, 2019

Matsumoto vacated the title in February 16, 2020, when he signed with ONE Championship.[10]
13 Japan Yuki Kawana
def. Captain Africa 		Professional Shooto 2020 Vol.4 in Osaka
Osaka, Japan 		July 12, 2020 435 days
14 Japan Yamato Nishikawa
def. Yuki Kawana 		Professional Shooto 2021 Vol.6
Tokyo, Japan 		September 20, 2021 1,159 days
(incumbent)

Featherweight Championship

Weight limit of 65.8 kg (145 lb)
The weight limit was 65 kg (143.3 lb) prior to January 1, 2015. The Featherweight Championship was known as the Lightweight Championship prior to January 1, 2017.[11]

No. Name Event Date Reign
(total)		 Defenses
1 Japan Kenichi Tanaka
def. Kazuhiro Sakamoto 		Shooto: Shooto
Tokyo, Japan 		September 8, 1990 265 days
2 Japan Kazuhiro Sakamoto Shooto: Shooto
Tokyo, Japan 		May 31, 1991 301 days 1. def. Hiroyuki Kanno on October 17, 1991
3 Japan Noboru Asahi Shooto: Shooto
Tokyo, Japan 		March 27, 1992 2,718 days

1. drew with Kenichi Tanaka on July 23, 1992
2. drew with Uchu Tatsumi on March 28, 1999

4 Brazil Alexandre Franca Nogueira Shooto: Renaxis 4
Tokyo, Japan 		September 5, 1999 2,436 days

1. def. Uchu Tatsumi on August 27, 2000
2. def. Tetsuo Katsuta on September 2, 2001
3. def. Katsuya Toida on December 16, 2001
4. def. Hiroyuki Abe on December 14, 2002
5. drew with Stephen Palling on August 10, 2003
6. def. João Roque on March 11, 2005

Nogueira vacated the title on May 7, 2006, after suffering a knee injury which prevented him from defending his title in the mandatory time period per Shooto regulations.
5 Japan Lion Takeshi
def. Antonio Carvalho 		Shooto: The Devilock
Tokyo, Japan 		May 12, 2006 371 days
6 Japan Akitoshi Tamura Shooto: Back To Our Roots 3
Tokyo, Japan 		May 18, 2007 315 days
7 Japan Hideki Kadowaki Shooto: Back To Our Roots 8
Tokyo, Japan 		March 28, 2008 246 days
8 Japan Lion Takeshi (2) Shooto: Shooto Tradition 4
Tokyo, Japan 		November 29, 2008 547 days
(918 days) 		1. def. Rumina Sato on May 10, 2009
9 Japan Hatsu Hioki Shooto: The Way of Shooto 3: Like a Tiger, Like a Dragon
Tokyo, Japan 		May 30, 2010 366 days
Hioki vacated the title on May 31, 2011 to compete in the UFC.[12]
10 Japan Yutaka Saito
def. Yoshifumi Nakamura 		Professional Shooto
Tokyo, Japan 		January 11, 2016 1,906 days 1. def. Caol Uno on April 23, 2017
Saito vacated the title on March 31, 2021 to compete in Rizin.[13]
11 Japan Sasuke
def. Ryoji Kudo 		Professional Shooto 2021 Vol.5
Tokyo, Japan 		July 25, 2021 1,216 days
(incumbent)

1. def. Tateo Iida on March 19, 2023
2. def. Hanzo Tanaka on December 2, 2023

Bantamweight Championship

Weight limit of 61.2 kg (135 lb)
The weight limit was 60 kg (132.3 lb) prior to January 1, 2015. The Bantamweight Championship was known as the Featherweight Championship prior to January 1, 2017.[14]

No. Name Event Date Reign
(total)		 Defenses
1 Japan Mamoru
def. Jin Akimoto 		Shooto: R.E.A.D. Final
Urayasu, Japan 		December 17, 2000 343 days
2 Japan Masahiro Oishi Shooto: To The Top 10
Tokyo, Japan 		November 25, 2001 623 days 1. drew with Hisao Ikeda on September 16, 2002
3 Japan Ryota Matsune Shooto: 8/10 in Yokohama Cultural Gymnasium
Yokohama, Japan 		August 10, 2003 858 days 1. def. Kentaro Imaizumi on November 12, 2004
Matsune vacated the title on December 15, 2005, after suffering a knee injury which prevented him from defending his title in the mandatory time period per Shooto regulations.[15][16]
4 Japan Akitoshi Hokazono
def. Kenji Osawa 		Shooto 2006: 7/21 in Korakuen Hall
Tokyo, Japan 		July 21, 2006 554 days
Hokazono vacated the title on January 26, 2008, when he retired.[17]
5 Japan Masakatsu Ueda
def. Koetsu Okazaki 		Shooto: Back To Our Roots 8
Tokyo, Japan 		March 28, 2008 724 days

1. drew with Marcos Galvao on September 28, 2008
2. def. So Tazawa on March 20, 2009
3. def. Eduardo Dantas on July 19, 2009

6 Japan Shuichiro Katsumura Shooto: The Way of Shooto 2: Like a Tiger, Like a Dragon
Tokyo, Japan 		March 22, 2010 403 days
7 Japan Koetsu Okazaki Shooto: Shooto Tradition 2011
Tokyo, Japan 		April 29, 2011 385 days
8 Japan Hiromasa Ougikubo Great East Japan Earthquake Reconstruction Support Charity
Tokyo, Japan 		May 18, 2012 302 days
9 Japan Kyoji Horiguchi Shooto: 2013 2nd Round
Tokyo, Japan 		March 16, 2013 948 days 1. def. Shintaro Ishiwatari on June 22, 2013
Horiguchi vacated the title on October 20, 2015 to compete in the UFC.[18]
10 Japan Shoko Sato
def. Keita Ishibashi 		Professional Shooto
Urayasu, Japan 		October 15, 2017 1,142 days

1. def. Tristan Grimsley on July 15, 2018
2. def. Yo Saito on November 17, 2018

— Japan Ryo Okada
def. Kazuma Kuramoto for interim title[19] 		Professional Shooto 2020 Vol.3
Tokyo, Japan 		May 31, 2020 —
Sato vacated the title on November 30, 2020, in order to compete with ONE Championship.[20]
11 Japan Ryo Okada
promoted to undisputed champion 		— November 30, 2020 476 days 1. def. Takafumi Otsuka on March 20, 2021
12 Japan Tatsuya Ando Professional Shooto 2022 Vol.2
Tokyo, Japan 		March 21, 2022 977 days
(incumbent)

Flyweight Championship

Weight limit of 56.7 kg (125 lb)
The weight limit was 56 kg (123.5 lb) prior to January 1, 2015. The Flyweight Championship was known as the Bantamweight Championship prior to January 1, 2017.[21]

No. Name Date Defenses
1 Japan Mamoru
def. Yasuhiro Urushitani 		December 14, 2003

1. drew with Robson Moura on September 26, 2004
2. drew with BJ on March 24, 2006

2 Japan BJ October 14, 2006

1. drew with Yasuhiro Urushitani on March 16, 2007
2. def. Mamoru on July 18, 2008
3. def. Yuki Shoujou on March 20, 2009

Kojima vacated the title on February 27, 2010 after suffering an ACL injury in his right knee which prevented him from defending his title in the mandatory time period per Shooto regulations.[22]
3 Japan Yasuhiro Urushitani
def. Ryuichi Miki 		May 30, 2010 1. def. Yuki Shoujou on July 18, 2011
Urushitani vacated the title on December 10, 2011 to compete in the UFC.
Ryuichi Miki drew with Yosuke Saruta for the vacant title on July 27, 2013.
4 Japan Ryuichi Miki
def. Yosuke Saruta 		November 9, 2013
5 Japan Masaaki Sugawara May 3, 2015
6 Japan Hiromasa Ougikubo April 23, 2016

1. def. Tadaaki Yamamoto on October 15, 2017
2. def. Kiyotaka Shimizu on May 6, 2019

— Japan Ryuya Fukuda
def. Yoshiro Maeda for the interim title. 		July 12, 2020
Ougikubo vacated the title on January 31, 2021.[23] Fukuda was promoted to undisputed status.[24]
7 Japan Ryuya Fukuda
promoted to undisputed champion 		January 31, 2021
8 Japan Tatsuro Taira July 3, 2021
Taira vacated the title on May 21, 2023 to compete for the UFC.[25]
9 Japan Jo Arai
def. Wataru Yamauchi 		November 19, 2023

Strawweight Championship

Weight limit of 52.2 kg (115 lb)
The weight limit was 52 kg (114.6 lb) prior to January 1, 2015. The Strawweight Championship was known as the Flyweight Championship prior to January 1, 2017.[26]

No. Name Date Defenses
1 Thailand Rambaa SomdetM16
def. Noboru Tahara 		November 23, 2009 1. def. Hiroyuki Abe on July 19, 2010
Somdet vacated the title on April 16, 2011 due to a partially torn left bicep.[27]
2 Japan Junji Ikoma
def. Junji Sarumaru 		April 29, 2011
3 Japan Mikihito Yamagami November 5, 2011 1. def. Junji Sarumaru on September 30, 2012
Yamagami vacated the title in December 2013 when he moved up in weight.[28]
4 Japan Shinya Murofushi
def. Junji Sarumaru 		January 13, 2014
5 Japan Yoshitaka Naito September 27, 2014

1. def. Ryuta Sawada on July 26, 2015
2. def. Junji Sarumaru on November 29, 2015

Naito vacated the title on April 7, 2016 when he signed with ONE Championship.[29]
6 Japan Ryohei Kurosawa
def. Ryuto Sawada 		July 17, 2016
Kurosawa vacated the title in 2017.
7 Japan Yosuke Saruta
def. Ryuto Sawada 		October 15, 2017 1. def. Itchaku Murata on May 13, 2018
Saruta vacated the title on November 30, 2019, after signing with ONE Championship.[30]
8 Japan Hiroshi Minowa
def. Yohei Komaki 		January 26, 2020
— Japan Junji Sarumaru
def. Ryohei Kurosawa for the interim title[31] 		November 7, 2021
Sarumaru was promoted to undisputed champion status on August 1, 2022, after Minowa vacated the title.[32]
9 Japan Junji Sarumaru
promoted to undisputed champion 		August 1, 2022
10 Japan Jo Arai
def. Junji Sarumaru 		September 19, 2022 1. def. Shuto Aki on July 23, 2023

Women's championship history

Women's Strawweight Championship

Weight limit of 52.2 kg (115 lb)

No. Name Event Date Reign
(total)		 Defenses
1 Japan Emi Fujino
def. Megumi Sugimoto 		Professional Shooto 2024 Vol.4
Tokyo, Japan 		May 18, 2024 188 days
(incumbent)

Women's Super Atomweight Championship

Weight limit of 50 kg (110 lb)[33]

No. Name Event Date Reign
(total)		 Defenses
1 Japan Mina Kurobe
def. Megumi Sugimoto 		Professional Shooto 2020 Vol.5
Tokyo, Japan 		August 1, 2020 462 days
2 Japan Sarami Professional Shooto 2021 Vol.7
Tokyo, Japan 		November 6, 2021 561 days
3 Japan Ayaka Watanabe Professional Shooto 2023 Vol.3
Tokyo, Japan 		May 21, 2023 551 days
(incumbent)

Women's Atomweight Championship

Weight limit of 47.6 kg (105 lb)

No. Name Event Date Reign
(total)		 Defenses
1 Japan Chihiro Sawada
def. Yuki Ono 		Professional Shooto 2022 Vol.7
Tokyo, Japan 		November 27, 2022 726 days
(incumbent) 		1. def. Miku Nakamura on December 2, 2023

Defunct title

Heavyweight Championship

Weight limit of 120.2 kg (265 lb)
The weight limit was 100 kg (220.5 lb) prior to January 1, 2015.[34]

No. Name Event Date Reign
(total)		 Defenses
1 United States Enson Inoue
def. Joe Estes 		Shooto: Reconquista 4
Tokyo, Japan 		October 12, 1997 693 days
Inoue vacated the title on September 5, 1999.

Records

Most wins in title bouts

The following includes all fighters with four or more championship and/or interim championship title wins.

Title wins Champion Division W L D NC
6 Brazil Alexandre Franca Nogueira Lightweight 6 1
4 Japan Kenji Kawaguchi Light Heavyweight 4 1 1
Japan Hiromasa Ougikubo Featherweight
Bantamweight 		1
3 		0
0
1

Most consecutive title defenses

The following includes all Shooto champions who were able to consecutively defend their title three times or more. Fighters with the same number of title defenses are listed chronologically.

Defenses Champion Division Period
6 Brazil Alexandre Franca Nogueira[a] Lightweight September 5, 1999 – May 7, 2006
3 Japan Kenji Kawaguchi[b] Light Heavyweight May 31, 1991 – May 7, 1996
Japan BJ[c] Bantamweight October 16, 2006 – March 1, 2010
Japan Masakatsu Ueda[d] Featherweight March 28, 2008 – March 22, 2010
  1. ^ Nogueira successfully defended the Shooto Lightweight Championship five times and retained the title once following a draw against Stephen Palling at Shooto: 8/10 in Yokohama Cultural Gymnasium.
  2. ^ Kawaguchi successfully defended the Shooto Light Heavyweight Championship twice and retained the title once following a draw against Satoshi Honma on November 27, 1992.
  3. ^ BJ successfully defended the Shooto Bantamweight Championship twice and retained the title once following a draw against Yasuhiro Urushitani at Shooto: Back To Our Roots 2.
  4. ^ Ueda successfully defended the Shooto Featherweight Championship twice and retained the title once following a draw against Marcos Galvão at

Multi-division champions

Fighters who have won championships in multiple weight classes.[35] Tournament champions are not included.

Interim title
* Simultaneous two
division champion
No. Champion Division Period Defense
1 Japan Mamoru Featherweight December 17, 2000 – November 25, 2001 0
Bantamweight December 14, 2003 – October 14, 2006 2
2 Japan Hiromasa Ougikubo Featherweight May 18, 2012 – March 16, 2013 0
Bantamweight April 23, 2016 – January 31, 2021 2

By nationality

The following include championship title holders by nationality.

Country Titles
 Japan 62
 Brazil 6
 United States 3
 Afghanistan 1
 Thailand 1
 Norway 1

See also

References

  1. ^ "Kaikyū oyobi taijū kiyaku kaisei" 階級および体重規約改正 [Revision of class and weight rules]. Japan Shooto Association (in Japanese). October 30, 2014. Archived from the original on January 3, 2017. Retrieved March 12, 2024.
  2. ^ "Kaikyū kiyaku kaisei" 階級規約改正 [Revision of weight classes]. Japan Shooto Association (in Japanese). November 5, 2016. Archived from the original on January 8, 2017. Retrieved March 12, 2024.
  3. ^ "Shooto World Middleweight Title". titlehistories.com. October 16, 2020. Retrieved March 12, 2024.
  4. ^ "Shooto World Welterweight Title". titlehistories.com. October 16, 2020. Retrieved March 12, 2024.
  5. ^ Tabuena, Anton. "UFC 134: Shooto Champ Luis 'Beicao' Ramos to Replace Mike Swick Against Erick Silva". bloodyelbow.com. Retrieved 5 July 2021.
  6. ^ "Shooto World Lightweight Title". titlehistories.com. September 20, 2021. Retrieved March 12, 2024.
  7. ^ 【修斗】中蔵隆志が網膜はく離のため王座を返上、10・30シケリムVS冨樫で決定戦. gbring.com. Retrieved 5 July 2021.
  8. ^ Butterfield, Jon (2011-01-14). "411 Fighter Profile 01.14.11: Willamy Freire". 411Mania.com. Archived from the original on 2012-10-07. Retrieved 2011-05-17.
  9. ^ 【修斗】松本光史と川名雄生が世界王座を懸けて再戦. efight.jp. 28 February 2016. Retrieved 5 July 2021.
  10. ^ 世界ライト級王者・松本光史がタイトルを返上. shooto-mma.com. Retrieved 5 July 2021.
  11. ^ "Shooto World Featherweight Title". titlehistories.com. July 25, 2021. Retrieved March 12, 2024.
  12. ^ 元修斗＆戦極王者・日沖がＵＦＣに初参戦 メインではＢＪ・ペンがニック・ディアスと激突！. sports.yahoo.co.jp (in Japanese). Retrieved 6 July 2021.
  13. ^ 世界フェザー級王者・斎藤裕がタイトルを返上. j-shooto.com (in Japanese). Retrieved 6 July 2021.
  14. ^ "Shooto World Bantamweight Title". titlehistories.com. March 21, 2022. Retrieved March 12, 2024.
  15. ^ 【修斗】松根良太が世界タイトルを返上. gbring.com (in Japanese). Retrieved 6 July 2021.
  16. ^ "Matsune Ryōta ga sekai taitoru henjō" 松根良太が世界タイトル返上 [Ryota Matsune vacates the world title]. Shooto (in Japanese). December 15, 2005. Archived from the original on May 18, 2007. Retrieved March 13, 2024.
  17. ^ 【修斗】世界フェザー級王者・外薗が引退、王座を返上「格闘技とは違う目標ができた」. gbring.com (in Japanese). Retrieved 6 July 2021.
  18. ^ 堀口がタイトル返上. j-shooto.com (in Japanese). Retrieved 6 July 2021.
  19. ^ 【Shooto2020#03】岡田、KO勝利で暫定世界王座＆環太平洋王座の二冠達成！「俺は修斗を愛しています」. mmaplanet.jp (in Japanese). Retrieved 6 July 2021.
  20. ^ 【修斗】世界バンタム級王者・佐藤将光がタイトルを返上. gonkaku.jp (in Japanese). Retrieved 6 July 2021.
  21. ^ "Shooto World Flyweight Title". titlehistories.com. July 5, 2021. Retrieved March 12, 2024.
  22. ^ "【修斗】世界王者BJが膝の負傷でタイトル返上「復帰戦はタイトルマッチで」". gbring.com. Retrieved 21 June 2021.
  23. ^ "扇久保博正がある"挑戦"を理由に修斗のベルトを返上、その裏にはRIZINバンタム級GPの開催か". efight.jp. February 2021. Retrieved 6 February 2021.
  24. ^ "【修斗】王者・福田龍彌がデビュー8戦全勝の超新星・平良達郎を迎え初防衛戦=6.20大阪". news.yahoo.co.jp. Retrieved 4 May 2021.
  25. ^ "【修斗】齋藤奨司が須藤拓真の足関節を凌ぎ打撃を入れて判定勝ち、田中半蔵がロイベに判定勝ち、齋藤翼がフェザー級で岡田達磨に一本勝ち、平良達郎がUFC4連勝に向け、修斗世界王座返上". gonkaku.jp. Retrieved 21 May 2023.
  26. ^ "Shooto World Strawweight Title". titlehistories.com. September 19, 2022. Retrieved March 12, 2024.
  27. ^ Nelson, Chris (2011-04-16). "Hioki Joins April 29 Shooto Card; 'M-16' Vacates Title". Sherdog.com. Retrieved 2011-04-16.
  28. ^ "山上幹臣 修斗フライ級王座返上、韓国ROAD FCへ". Fight&Life. No. 40. February 2014.
  29. ^ "修斗世界フライ級王者・内藤のび太が王座返上". tokyoheadline.com. 22 April 2016. Retrieved 21 June 2021.
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