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 24 reigns shared between 16 different wrestlers. Itsuki Aoki is the current champion in her first reign.

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.

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.

Two-time champion Veny

As of May 5, 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

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

As of May 5, 2026

• Pro Wrestling Wave's official website