The Wave Single Championship(WAVE認定シングル王座, Wēbu-nintei Shinguru Ōza) is a women's professional wrestling championship owned by the Pro Wrestling Wave promotion. The title is nicknamed and more commonly referred to as the Regina di Wave Championship(Regina di WAVE王座, Rejīna di Wēbu Ōza; Italian for "Queen of Wave"). The championship, which is situated at the top of Pro Wrestling Wave's championship hierarchy, was first announced on December 5, 2012. The inaugural champion was crowned on March 17, 2013, when Yumi Ohka defeated Kana in the finals of a five-woman tournament.

There have been a total of 24 reigns shared between 16 different wrestlers. Itsuki Aoki is the current champion in her first reign.

History

On December 5, 2012, Pro Wrestling Wave's founder and booker Gami announced the creation of the Wave Single Championship. Prior to the announcement, Wave, which was founded in August 2007, had no singles championships; instead the annual Catch the Wave tournament served as the promotion's top singles achievement.

Regina di Wave tournament

Suzu Suzuki with the title in July 2022.

Gami then announced that the inaugural champion would be determined in a four-woman single-elimination "Regina di Wave" tournament, which would include three former winners of Catch the Wave; Ayumi Kurihara (winner of the 2012 tournament), Kana (2011) and Yumi Ohka (2009), and the winner of a one-night Zan-1 tournament, a three-round tournament, which included a battle royal, a rock-paper-scissors round and a fan vote. Gami herself was also a former Catch the Wave winner from 2010, but decided not to put herself in the title tournament. On December 16, Misaki Ohata won the Zan-1 tournament to earn the fourth and final spot in the title tournament. On January 23, 2013, a random draw decided that in the first round of the tournament on February 17, Ayumi Kurihara would face Kana, while Misaki Ohata would face Yumi Ohka. The finals of the tournament were set to take place on March 17. On February 16, Wave announced that Kurihara had suffered a nasal and orbital floor fracture and would be forced to pull out of the tournament. She would be replaced by Mio Shirai, who had finished second in the Zan-1 tournament. In the following day's semifinal matches, Kana defeated Shirai, while Ohka defeated Ohata. However, it was announced that if Kurihara was able to return to the ring by March 17, she would get to wrestle Kana for a spot in the finals. On March 7, Kurihara announced that she was going to make her return for the match against Kana. In order to prevent Ohka from having the advantage of having to wrestle only one match on March 17, she was put in a non-tournament match against Gami. On March 17, Kana defeated Kurihara to hold on to her spot in the finals of the tournament. Later that same day, Ohka defeated Kana in the finals to win the tournament and become the inaugural Wave Single Champion.

Semifinal (February 17, 2013)Semifinals (February 17, 2013 March 17, 2013)Finals (March 17, 2013)
Yumi OhkaPin
Misaki Ohata20:17
Yumi OhkaPin
Kana15:04
Ayumi KuriharaSub
Kana14:16
KanaSub
Mio Shirai11:26

Reigns

Two-time champion Veny

As of April 17, 2026, there have been 20 reigns between 12 champions and two vacancies. Yumi Ohka was the inaugural. Ohaka's first reign was also the longest at 525 days, while Misaki Ohata's third reign aws the shortest, which lasted less than a day. Ohata also has the most reigns at three. Yuu Yamagata is the oldest champion at 39 years old, while Asuka is the youngest at 19 years old.

Saya Kamitani is the current champion at her first reign. She defeated Yuki Miyazaki on November 11th 2024 at WAVE 2024 Prime WAVE in Tokyo, Japan

Key
No.Overall reign number
ReignReign number for the specific champion
DaysNumber of days held
DefensesNumber of successful defenses
<1Reign lasted less than a day
+Current reign is changing daily
No.ChampionChampionship changeReign statisticsNotesRef.
DateEventLocationReignDaysDefenses
1Yumi OhkaMarch 17, 2013Sunday Wave Vol. 14Tokyo, Japan15257Ohka defeated Kana in the finals of a five-woman tournament to become the inaugural champion.
2Hikaru ShidaAugust 24, 2014Happy Anniversary Wave: SevenTokyo, Japan11714
3Ayako HamadaFebruary 11, 2015Second VirginTokyo, Japan13194
4Yuu YamagataDecember 27, 2015Thanksgiving WaveTokyo, Japan13684
5Ryo MizunamiDecember 29, 2016Thanksgiving Wave 16Tokyo, Japan11854
6Rina YamashitaJuly 2, 2017Be Exciting!Tokyo, Japan1992
7Misaki OhataOctober 9, 2017Saint OctoberTokyo, Japan1815
8Yumi OhkaDecember 29, 2017Thanksgiving WAVE '17Tokyo, Japan2222
9Misaki OhataJanuary 20, 2018Saturday Night Fever JanuaryTokyo, Japan21592
10Takumi IrohaJune 28, 2018Weekday Wave Vol. 116: Height Max!Tokyo, Japan1520
11AsukaAugust 19, 2018Anivarsario WAVE 2018Tokyo, Japan11182
12Ryo MizunamiDecember 15, 2018Dai Shiwazu Nishi 18 Vol. 2Tokyo, Japan2140
13Misaki OhataDecember 29, 2018Phase 1 Final: Kick Out – Misaki Ohata Retirement – Beautifully BloomTokyo, Japan3<10
VacatedDecember 29, 2018Phase 1 Final: Kick Out – Misaki Ohata Retirement – Beautifully BloomTokyo, JapanThe championship was vacated due to Ohata retiring from professional wrestling.
14Takumi IrohaJuly 15, 2019Catch The Wave 2019 FinalTokyo, Japan21675Iroha defeated Nagisa Nozaki and Ryo Mizunami in the finals of Catch the WAVE tournament to win the vacant championship.
15Nagisa NozakiDecember 29, 2019Thanksgiving WaveTokyo, Japan13645
16Sakura HirotaDecember 27, 2020Thanksgiving Wave: Byebye 2020Tokyo, Japan12383
17Nagisa NozakiAugust 22, 2021Summer Wars 14th SummerTokyo, Japan23294
VacatedJuly 17, 2022Catch The Wave 2022 FinalTokyo, JapanNozaki vacated the title due to suffering a legitimate injury.
18Suzu SuzukiJuly 17, 2022Catch the Wave 2022 FinalTokyo, Japan1280Suzuki was initially scheduled to face Nagisa Nozaki for the championship in the 2022 Catch the Wave Tournament finals, but due to the latter relinquishing the title after suffering a legitimate injury, Suzuki faced Miyuki Takase whom she defeated to win the vacant title and subsequently the tournament finals.
19Hikaru ShidaAugust 14, 2022Wave 15th Anniversary ~ Carnival WaveTokyo, Japan24135
20VenyOctober 1, 2023WAVE PHASE2 Reboot 4th ~ NAMI 1Tokyo, Japan2840Veny was previously known as Asuka.
21Yuki MiyazakiDecember 24, 2023WAVE Carnival Wave ~ Christmas DeluxeKawasaki, Japan13166
22Saya KamitaniNovember 4, 2024WAVE 2024 Prime WAVETokyo, Japan12794
23KohakuAugust 10, 2025WAVE 18th Anniversary ~ Carnival WAVETokyo, Japan1842
24Itsuki AokiNovember 2, 2025WAVE Prime Wave 2025Tokyo, Japan1166+2

Combined reigns

Record tying two-time and longest combined reigning champion, Nagisa Nozaki

As of April 17, 2026

Indicates the current champions
RankWrestlerNo. of reignsCombined defensesCombined days
1Nagisa Nozaki29693
2Hikaru Shida29584
3Yumi Ohka28547
4Yuu Yamagata14368
5Ayako Hamada14319
6Yuki Miyazaki16316
7Saya Kamitani14279
8Misaki Ohata37240
9Sakura Hirota13238
10Takumi Iroha25219
11Asuka/Veny22202
12Ryo Mizunami24199
13Itsuki Aoki12166+
14Rina Yamashita1299
15Kohaku1284
16Suzu Suzuki1028

External links