Oz Academy Openweight Championship

(Redirected from Oz Academy Openweight Champion) Professional wrestling women's championship

Current design of the championship (2019 – present)

Details

Promotion

Oz Academy

Date established

October 23, 2006

Current champion(s)

Ryo Mizunami

Date won

October 27, 2024

Statistics
First champion(s)	Aja Kong
Most reigns	Mayumi Ozaki (4 reigns)
Longest reign	Akino (537 days)
Shortest reign	Mio Shirai (4 hours, 2 minutes)
Oldest champion	Mayumi Ozaki (55 years, 183 days)
Youngest champion	Yoshiko (24 years, 95 days)
Heaviest champion	Aja Kong (103 kg (227 lb)))
Lightest champion	Chikayo Nagashima (52 kg (115 lb)))

The Oz Academy Openweight Championship is a women's professional wrestling championship owned by the Oz Academy promotion. The reigning champion is referred to as the "Wizard of Oz". The championship, which is situated at the top of Oz Academy's championship hierarchy, was introduced on March 10, 2007, when Aja Kong defeated Chikayo Nagashima in the finals of a tournament to become the inaugural champion.

Reigns

Aja Kong was the first champion in the title's history. She also holds the records for most reigns, with three. Akino holds the record for the longest reign, at 537 days, achieved on her first reign. Mio Shirai's only reign of four hours and two minutes is the shortest in the title's history. Overall, there have been twenty-nine reigns shared among eighteen different wrestlers. Mio Momono is the current champion in her first reign.

Title history

Key
No.	Overall reign number
Reign	Reign number for the specific champion
Days	Number of days held
Defenses	Number of successful defenses
+	Current reign is changing daily

No.	Champion	Championship change			Reign statistics			Notes	Ref.
No.	Champion	Date	Event	Location	Reign	Days	Defenses	Notes	Ref.
1	Aja Kong	March 10, 2007	Queen Rebirth	Tokyo, Japan	1	309	1	Kong defeated Chikayo Nagashima in the finals of a five-woman tournament to become the inaugural champion.
2	Carlos Amano	January 13, 2008	The Wizard of OZ 2008	Tokyo, Japan	1	364	2
3	Mayumi Ozaki	January 11, 2009	The Wizard of OZ 2009	Tokyo, Japan	1	42	2
4	Dynamite Kansai	February 22, 2009	The Country of OZ 2009	Tokyo, Japan	1	175	0
5	Aja Kong	August 16, 2009	Plum Hanasaku ~ Country of OZ 2009	Tokyo, Japan	2	36	0
6	Manami Toyota	September 21, 2009	OZ-Power is Everything - night 1	Sapporo, Hokkaido, Japan	1	93	0
7	Carlos Amano	December 23, 2009	here is No Christmas in the Country of OZ!	Tokyo, Japan	2	200	1
8	Kaoru	July 11, 2010	Summer Factor	Tokyo, Japan	1	273	4
—	Vacated	April 10, 2011	—	—	—	—	—	The championship was vacated, when Kaoru suffered an injury and was unable to continue a three-way street fight against Aja Kong and Mayumi Ozaki, forcing the match to be ended in a no contest.
9	Aja Kong	April 10, 2011	One Night in Heaven	Tokyo, Japan	3	19	0	Kong defeated Mayumi Ozaki to win the vacant championship.
10	Ran Yu-Yu	April 29, 2011	Heavenly Days in Osaka	Osaka, Japan	1	86	0
11	Dynamite Kansai	July 24, 2011	Gravity	Tokyo, Japan	2	28	0
12	Mayumi Ozaki	August 21, 2011	Plum Hanasaku ~ Country of OZ 2011 - night 2: 15th Anniversary ~ Yokohama Dreams Park	Yokohama, Kanagawa, Japan	2	217	0	This was a four-way elimination match, also involving Aja Kong and Shinobu Kandori.
13	Chikayo Nagashima	March 25, 2012	A Kingdom of the Chaos	Tokyo, Japan	1	395	2	This was a Dress Up Wild Fight 30-minute Time of the Trial match.
14	Akino	April 24, 2013	Wednesdays Showdown	Tokyo, Japan	1	537	7
15	Tsubasa Kuragaki	October 13, 2014	No Answer	Tokyo, Japan	1	216	2
16	Akino	May 17, 2015	Reincarnation - night 2	Tokyo, Japan	2	21	0
17	Mio Shirai	June 7, 2015	Focus - night 1	Tokyo, Japan	1	<1	0
—	Vacated	June 7, 2015	Ozabun Spin-off	Tokyo, Japan	—	—	—	Mio Shirai vacated the championship due to losing to Kaho Kobayashi in a non-title match.
18	Sonoko Kato	August 23, 2015	Plum Hanasaku ~ Country Of OZ 2015: Yokohama Dreams Park #3	Yokohama, Kanagawa, Japan	1	245	5	Kato defeated Hiroyo Matsumoto in a Last Woman Standing match to win the vacant championship. The match started off as a six-woman elimination tag team match, where Kato, Akino and Tsubasa Kuragaki faced Matsumoto, Arisa Nakajima and Hikaru Shida.
—	Vacated	April 24, 2016	The Artist	Tokyo, Japan	—	—	—	Kato was stripped of the championship after her title defense against Hiroyo Matsumoto ended in a no contest.
19	Sonoko Kato	July 18, 2016	Aja Kong 30th Anniversary ~ Summer Jumbo Kotobuki	Tokyo, Japan	2	118	1	Kato defeated Mayumi Ozaki in a No Holds Barred Hardcore match to win the vacant championship.
20	Hiroyo Matsumoto	November 13, 2016	OZ Academy 20th Anniversary ~ Yokohama Dreams Park DK	Yokohama, Kanagawa, Japan	1	350	3
21	Yoshiko	October 29, 2017	Yokohama Undersea Unexplored Expedition	Yokohama, Kanagawa, Japan	1	217	4
22	Hikaru Shida	June 3, 2018	Rude in June	Tokyo, Japan	1	315	2
23	Mayumi Ozaki	April 14, 2019	It is the Dawn of the Era	Tokyo, Japan	3	721	4
24	Sonoko Kato	April 4, 2021	OZ Academy Silver Bullet	Tokyo, Japan	3	70	1
25	Kaori Yoneyama	June 13, 2021	OZ Academy The End Of Bright	Tokyo, Japan	1	35	1
26	Maya Yukihi	July 18, 2021	OZ Academy Tournament 25th Fortress	Nagoya, Japan	1	<1	0
—	Vacated	July 18, 2021	—	—	—	—	—
27	Maya Yukihi	August 18, 2021	OZ Academy Plum No Hanasaku OZ No Kuni ~ Mayumi Ozaki Debut 35th Anniversary	Tokyo, Japan	2	228	1	This was a four-way match, also involving Mayumi Ozaki, Saori Anou and Yumi Ohka.
28	Akino	April 3, 2022	OZ Academy Battle Big Bonus In Korakuen	Tokyo, Japan	3	644	6
29	Mio Momono	January 7, 2024	OZ Academy The Wizard Of OZ 2024	Tokyo, Japan	1	112	0
30	Mayumi Ozaki	April 28, 2024	OZ Academy Battle Big Bonus 2024	Tokyo, Japan	4	182	3	This was a winner takes all match which was also contested for Ozaki's AAAW Single Championship.
31	Ryo Mizunami	October 27, 2024	OZ Academy at Yokohama Budokan 2024	Tokyo, Japan	1	67+	0	The winner of the Yokohama Budokan Tournament Kyoto Ranbu got to challenge for the title.

Combined reigns

As of January 2, 2025.

†	Indicates the current champion

Rank	Wrestler	No. of reigns	Combined defenses	Combined days
1	Akino	3	13	1,202
2	Mayumi Ozaki	4	9	1,172
3	Carlos Amano	2	3	564
4	Sonoko Kato	3	7	433
5	Chikayo Nagashima	1	2	395
6	Aja Kong	3	1	364
7	Hiroyo Matsumoto	1	3	350
8	Hikaru Shida	1	2	315
9	Kaoru	1	4	273
10	Maya Yukihi	2	1	228
11	Yoshiko	1	4	217
12	Tsubasa Kuragaki	1	2	216
13	Dynamite Kansai	2	0	203
14	Mio Momono	1	0	112
15	Manami Toyota	1	0	93
16	Ran Yu-Yu	1	0	86
17	Ryo Mizunami †	1	0	67+
18	Kaori Yoneyama	1	1	35
19	Mio Shirai	1	0	<1

References

^ "Ozベルト設立の理由について". Oz Academy (in Japanese). October 23, 2006. Retrieved July 1, 2012.
^ "2007/03/10（土）第25回Oz興行「女王誕生」新宿Face 19:00～". Oz Academy (in Japanese). Archived from the original on May 18, 2007. Retrieved July 1, 2012.
アジャ・コング. Oz Academy (in Japanese). Archived from the original on October 25, 2007. Retrieved July 1, 2012.
永島千佳世. Oz Academy (in Japanese). Archived from the original on September 7, 2011. Retrieved July 1, 2012.
^ "2009/8/16（日） Oz後楽園大会 12:00～「プラムの花咲くOzの国 2009 」". Oz Academy (in Japanese). Archived from the original on August 21, 2009. Retrieved July 1, 2012.
^ "2011/04/10（日） Oz新宿大会 18:00～「One Night In Heaven」". Oz Academy (in Japanese). Archived from the original on May 8, 2012. Retrieved July 1, 2012.
^ クチは災いのもと. Oz Academy (in Japanese). Ameba. June 10, 2015. Retrieved June 10, 2015.
^ "2008/1/13（日） Oz新宿大会 12：30～「 The Wizard of Oz 2008 」". Oz Academy (in Japanese). Archived from the original on September 7, 2008. Retrieved July 1, 2012.
^ "2009/01/11（日） Oz新宿大会 12:30～「The Wizard of Oz 2009」". Oz Academy (in Japanese). Archived from the original on January 22, 2009. Retrieved July 1, 2012.
"2009/02/05（木） Oz新宿大会 19:00～「Oz-The Perfect Taboo!!」". Oz Academy (in Japanese). Archived from the original on February 11, 2009. Retrieved July 1, 2012.
"2009/2/22（日） Oz後楽園大会 12：00～「魔性の花咲くOzの国」". Oz Academy (in Japanese). Archived from the original on February 26, 2009. Retrieved July 1, 2012.
^ "2009/9/21（月） Oz札幌大会 13:00～「 BJ Shop 札幌プレゼンツ」". Oz Academy (in Japanese). Archived from the original on November 13, 2009. Retrieved July 1, 2012.
^ "2009/12/23（水） Oz後楽園大会 12:00～「 Ozの国にクリスマスは無い！」". Oz Academy (in Japanese). Archived from the original on December 27, 2009. Retrieved July 1, 2012.
^ "2010/07/11（日） Oz新宿大会 12:30～「 Summer Factor 」". Oz Academy (in Japanese). Archived from the original on November 28, 2010. Retrieved July 1, 2012.
^ 試合結果. Oz Academy (in Japanese). Livedoor. April 30, 2011. Retrieved February 7, 2013.
^ "2011/07/24（日） Oz新宿大会 12:00～「Gravity」". Oz Academy (in Japanese). Archived from the original on August 6, 2011. Retrieved July 1, 2012.
^ "2011/08/21(日) 16:00～「ﾌﾟﾗﾑの花咲くOzの国2011 Yokohama Dreams Park」". Oz Academy (in Japanese). Archived from the original on August 31, 2011. Retrieved July 1, 2012.
^ 試合結果. Oz Academy (in Japanese). Livedoor. March 25, 2012. Retrieved August 14, 2013.
^ 2013/04/24(水) 18:30～「決戦は水曜日!!」. Oz Academy (in Japanese). Archived from the original on June 12, 2013. Retrieved April 30, 2013.
"【結果】Ozアカデミー10・13後楽園". Ringstars (in Japanese). Ameba. October 15, 2014. Retrieved October 18, 2014.
^ "2015/05/17(日) 18:00～「 Reincarnation 」". Oz Academy (in Japanese). Retrieved May 18, 2015.
"2014/10/13(月) 12:00～「 No Answer 」". Oz Academy (in Japanese). Retrieved October 18, 2014.
^ "2015/06/07(日) 12:00～「 Focus 」". Oz Academy (in Japanese). Archived from the original on June 20, 2015. Retrieved June 17, 2015.
Ozabun Spin-off～中川ともか、最後の1カウントを打ちに来たよ～. Pro Wrestling Wave (in Japanese). Retrieved June 8, 2015.
^ 2016/04/24(日) 12:00～ Oz新宿大会「～The Artist～」. Oz Academy (in Japanese). Retrieved April 27, 2016.
^ 「Ozアカデミー結成20周年記念興行～Yokohama Drams Park DK～」. Oz Academy (in Japanese). Retrieved November 15, 2016.
2016/07/18(月) 12:00～「アジャ・コングデビュー30周年記念興行～Summer Jumbo 寿～」. Oz Academy (in Japanese). Retrieved July 19, 2016.
^ 2017/10/29(日) 16:00～「～横浜海底秘境探検～」. Oz Academy (in Japanese). Retrieved October 31, 2017.
"Hikaru Shida Wins Oz Academy Openweight Title". Squared Circle Sirens. Retrieved June 3, 2018.
"Oz Academy: "It is the Dawn of the Era" Mayumi Ozaki se corona". Superluchas (in Spanish). 25 April 2019. Retrieved April 25, 2019.
【OZアカデミー】米山香織が加藤園子を破りOZアカデミー認定無差別王座を戴冠！6.13 新宿FACE『OZ25th～春嵐強襲～』＜全試合結果＞. ガジェット通信 (in Japanese). June 13, 2021. Retrieved June 14, 2021.
Richards, Alex (April 5, 2021). "#AndNEW: Titles Change Hands at OZ Academy Silver Bullet". lastwordonsports.com. Retrieved April 5, 2021.
Daly, Wayne (June 13, 2021). "OZ Academy Results: The End Of Bright – Tokyo, Japan (6/13)". wrestling-news.net. Retrieved June 16, 2021.
Oz Academy (July 18, 2021). OZアカデミー女子プロレス名古屋大会 OZ 25th～Fortress＠名古屋～. oz-academy.com (in Japanese). Retrieved July 18, 2021.
Oz Academy (August 18, 2021). OZアカデミー女子プロレス後楽園ホール大会尾崎魔弓35周年記念プラムの花咲くOZの国～正危軍興行～. oz-academy.com (in Japanese). Retrieved August 18, 2021.
Kreikenbohm, Philip (April 3, 2022). "OZ Academy Battle Big Bonus In Korakuen". cagematch.net. Retrieved April 3, 2022.
Kreikenbohm, Philip (January 7, 2024). "OZ Academy The Wizard Of OZ 2024". cagematch.net. Retrieved January 7, 2024.
Kreikenbohm, Philip (April 28, 2024). "OZ Academy Battle Big Bonus 2024". cagematch.net. Retrieved April 28, 2024.
Kreikenbohm, Philip (October 27, 2024). "OZ Academy Kyohi Ranbu 2024". cagematch.net. Retrieved October 27, 2024.

External links

Oz Academy

Championships

Roster

Active	Aja Kong Akino Hiroyo Matsumoto Itsuki Aoki Kakeru Sekiguchi Kaori Yoneyama Kaho Kobayashi Maya Yukihi Mayumi Ozaki Rina Shingaki Sakura Hirota Saori Anou Sonoko Kato Tsubasa Kuragaki Yumi Ohka Yuu
Alumni	Alex Lee Ayumi Kurihara Carlos Amano Cherry Chikayo Nagashima Devil Masami Kurumi Hiren Kaori Nakayama Kaoru Manami Toyota Mika Nishio Nao Komatsu Ran Yu-Yu Rie Nakamura Sugar Sato Takako Inoue Tomoka Nakagawa
Staff	Mio Shirai Police Ring Ana Nakamura Sayuri Koda Sachiko Ito

Partnerships

Active	Gaora TV
Former	Gaea Japan World Woman Pro-Wrestling Diana

v t e Oz Academy Openweight Champions
2000s	Aja Kong Carlos Amano Mayumi Ozaki Dynamite Kansai
2010s	Manami Toyota Kaoru Ran Yu-Yu Chikayo Nagashima Akino Tsubasa Kuragaki Mio Shirai Sonoko Kato Hiroyo Matsumoto Yoshiko Hikaru Shida
2020s	Kaori Yoneyama Maya Yukihi Mio Momono Ryo Mizunami (current)

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