# Wave Single Championship

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 22 reigns shared between 14 different wrestlers. Saya Kamitani 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

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) | Semifinal (February 17, 2013) | Semifinals (February 17, 2013 March 17, 2013) | Semifinals (February 17, 2013 March 17, 2013) | Finals (March 17, 2013) | Finals (March 17, 2013) |
| | | Yumi Ohka | Pin | | |
| | | Misaki Ohata | 20:17 | | |
| | | | | Yumi Ohka | Pin |
| | | | | Kana | 15:04 |
| | | Ayumi Kurihara | Sub | | |
| | | Kana | 14:16 | | |
| Kana | Sub | Kana | 14:16 | | |
| Mio Shirai | 11:26 | | | | |

## Reigns

As of March 2, 2025, 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.
Veny is the current champion at her second reign. She defeated Hikaru Shida on October 1, 2023, at WAVE PHASE2 Reboot 4th ~ NAMI 1 in Tokyo, Japan.
Key :
| No. | Overall reign number |
| Reign | Reign number for the specific champion |
| Days | Number of days held |
| Defenses | Number of successful defenses |
| <1 | Reign lasted less than a day |
| + | Current reign is changing daily |
| No. | Champion | Championship change | Championship change | Championship change | Reign statistics | Reign statistics | Reign statistics | Notes | Ref. |
| No. | Champion | Date | Event | Location | Reign | Days | Defenses | Notes | Ref. |
| 1 | Yumi Ohka | March 17, 2013 | Sunday Wave Vol. 14 | Tokyo, Japan | 1 | 525 | 7 | Ohka defeated Kana in the finals of a five-woman tournament to become the inaugural champion. | |
| 2 | Hikaru Shida | August 24, 2014 | Happy Anniversary Wave: Seven | Tokyo, Japan | 1 | 171 | 4 | | |
| 3 | Ayako Hamada | February 11, 2015 | Second Virgin | Tokyo, Japan | 1 | 319 | 4 | | |
| 4 | Yuu Yamagata | December 27, 2015 | Thanksgiving Wave | Tokyo, Japan | 1 | 368 | 4 | | |
| 5 | Ryo Mizunami | December 29, 2016 | Thanksgiving Wave 16 | Tokyo, Japan | 1 | 185 | 4 | | |
| 6 | Rina Yamashita | July 2, 2017 | Be Exciting! | Tokyo, Japan | 1 | 99 | 2 | | |
| 7 | Misaki Ohata | October 9, 2017 | Saint October | Tokyo, Japan | 1 | 81 | 5 | | |
| 8 | Yumi Ohka | December 29, 2017 | Thanksgiving WAVE '17 | Tokyo, Japan | 2 | 22 | 2 | | |
| 9 | Misaki Ohata | January 20, 2018 | Saturday Night Fever January | Tokyo, Japan | 2 | 159 | 2 | | |
| 10 | Takumi Iroha | June 28, 2018 | Weekday Wave Vol. 116: Height Max! | Tokyo, Japan | 1 | 52 | 0 | | |
| 11 | Asuka | August 19, 2018 | Anivarsario WAVE 2018 | Tokyo, Japan | 1 | 118 | 2 | | |
| 12 | Ryo Mizunami | December 15, 2018 | Dai Shiwazu Nishi 18 Vol. 2 | Tokyo, Japan | 2 | 14 | 0 | | |
| 13 | Misaki Ohata | December 29, 2018 | Phase 1 Final: Kick Out – Misaki Ohata Retirement – Beautifully Bloom | Tokyo, Japan | 3 | <1 | 0 | | |
| — | Vacated | December 29, 2018 | Phase 1 Final: Kick Out – Misaki Ohata Retirement – Beautifully Bloom | Tokyo, Japan | — | — | — | The championship was vacated due to Ohata retiring from professional wrestling. | |
| 14 | Takumi Iroha | July 15, 2019 | Catch The Wave 2019 Final | Tokyo, Japan | 2 | 167 | 5 | Iroha defeated Nagisa Nozaki and Ryo Mizunami in the finals of Catch the WAVE tournament to win the vacant championship. | |
| 15 | Nagisa Nozaki | December 29, 2019 | Thanksgiving Wave | Tokyo, Japan | 1 | 364 | 5 | | |
| 16 | Sakura Hirota | December 27, 2020 | Thanksgiving Wave: Byebye 2020 | Tokyo, Japan | 1 | 238 | 3 | | |
| 17 | Nagisa Nozaki | August 22, 2021 | Summer Wars 14th Summer | Tokyo, Japan | 2 | 329 | 4 | | |
| — | Vacated | July 17, 2022 | Catch The Wave 2022 Final | Tokyo, Japan | — | — | — | Nozaki vacated the title due to suffering a legitimate injury. | |
| 18 | Suzu Suzuki | July 17, 2022 | Catch the Wave 2022 Final | Tokyo, Japan | 1 | 28 | 0 | Suzuki 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. | |
| 19 | Hikaru Shida | August 14, 2022 | Wave 15th Anniversary ~ Carnival Wave | Tokyo, Japan | 2 | 413 | 5 | | |
| 20 | Veny | October 1, 2023 | WAVE PHASE2 Reboot 4th ~ NAMI 1 | Tokyo, Japan | 2 | 84 | 0 | Veny was previously known as Asuka. | |
| 21 | Yuki Miyazaki | December 24, 2023 | WAVE Carnival Wave ~ Christmas Deluxe | Kawasaki, Japan | 1 | 316 | 6 | | |
| 22 | Saya Kamitani | November 4, 2024 | WAVE 2024 Prime WAVE | Tokyo, Japan | 1 | 118+ | 2 | | |

## Combined reigns

As of March 2, 2025
| † | Indicates the current champions |
| Rank | Wrestler | No. of reigns | Combined defenses | Combined days |
| 1 | Nagisa Nozaki | 2 | 9 | 693 |
| 2 | Hikaru Shida | 2 | 9 | 584 |
| 3 | Yumi Ohka | 2 | 8 | 547 |
| 4 | Yuu Yamagata | 1 | 4 | 368 |
| 5 | Ayako Hamada | 1 | 4 | 319 |
| 6 | Yuki Miyazaki | 1 | 6 | 316 |
| 7 | Misaki Ohata | 3 | 7 | 240 |
| 8 | Sakura Hirota | 1 | 3 | 238 |
| 9 | Takumi Iroha | 2 | 5 | 219 |
| 10 | Asuka/Veny | 2 | 2 | 202 |
| 11 | Ryo Mizunami | 2 | 4 | 199 |
| 12 | Saya Kamitani † | 1 | 2 | 118+ |
| 13 | Rina Yamashita | 1 | 2 | 99 |
| 14 | Suzu Suzuki | 1 | 0 | 28 |