| Beyond the Sea Single Championship | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Details | |||||||||||||||||||
| Promotion | Seadlinnng | ||||||||||||||||||
| Date established | November 1, 2018[1] | ||||||||||||||||||
| Current champion | Hiroyo Matsumoto | ||||||||||||||||||
| Date won | August 22, 2025 | ||||||||||||||||||
| |||||||||||||||||||
TheBeyond the Sea Single Championship (BEYOND THE SEA SINGLE 王座 or BEYOND THE SEAシングル王座[4],Biyondo za shī shinguru ōza) is awomen's professional wrestlingchampionship owned by theSeadlinnngpromotion. The title, which is situated at the top of Seadlinnng's championship hierarchy, was introduced on October 3, 2018, and the inaugural champion was crowned on November 1, 2018, whenNanae Takahashi defeatedArisa Nakajima in the finals of an eight-woman tournament.[1] The bottom part of the belt is blue as it resembles the ocean, while the upper part of the belt is red, which resembles the sun.[5] The title was vacated once as a result of former championYoshiko taking time off to rehabilitate nagging injuries.[6]
Like most professional wrestling championships, the title is won as a result of a scripted match. There have been twelve reigns shared among nine different wrestlers. The current champion isHiroyo Matsumoto who is in her second reign.

On November 1, 2018,Nanae Takahashi, the founder of Seadlinnng, defeatedArisa Nakajima in the finals of an eight-womansingle-elimination tournament to become the inaugural champion.[1] On March 9, 2021, the current championYoshiko vacated the title to recover from injuries.[7] On March 17,Asuka defeatedRina Yamashita to win the vacant championship.[8]
On October 6, 2022, the current champion Nakajima vacated the title suffering an injury.[9] On October 19,Hiroyo Matsumoto defeatedItsuki Aoki in the finals of a ten-woman single-elimination tournament to win the vacant championship.[10]
| Quarterfinals | Semifinals | Final | ||||||||||||
| Ryo Mizunami | 13:13[11] | |||||||||||||
| Takumi Iroha | Sub1 | |||||||||||||
| Takumi Iroha | 15:22[1] | |||||||||||||
| Nanae Takahashi | Pin | |||||||||||||
| Hiroyo Matsumoto | 22:20[11] | |||||||||||||
| Nanae Takahashi | Pin | |||||||||||||
| Nanae Takahashi | Pin | |||||||||||||
| Arisa Nakajima | 18:02[1] | |||||||||||||
| Hanako Nakamori | Pin | |||||||||||||
| Yoshiko | 6:05[11] | |||||||||||||
| Hanako Nakamori | 12:12[1] | |||||||||||||
| Arisa Nakajima | Pin | |||||||||||||
| Arisa Nakajima | Pin | |||||||||||||
| Rina Yamashita | 21:05[11] | |||||||||||||
^1 – This was a technical submission.
As of November 25, 2025, there have been nine reigns between seven champions and twovacancies. Nanae Takahashi was the inaugural champion. Arisa Nakajima hold the record for most reigns at three times.Sareee's first reign is the longest at 511 days, while Makoto has the shortest reign at 66 days. Takahashi is the oldest champion at 39 years old, whileAsuka is the youngest at 22 years old.
Veny is the current champion in her second reign. She won the title by defeating Sareee atSeadlinnng Shin-Kiba Series 2025 Vol. 1 on January 17, 2025, inTokyo,Japan.
| 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. | ||||
|---|---|---|---|---|---|---|---|---|---|
| Date | Event | Location | Reign | Days | Defenses | ||||
| 1 | Nanae Takahashi | November 1, 2018 | Go! Beyond! | Tokyo,Japan | 1 | 209 | 3[12] | Takahashi defeatedArisa Nakajima in the finals of an eight-womansingle-elimination tournament to become the inaugural champion. | [1][12] |
| 2 | Takumi Iroha | May 29, 2019 | Stay Tune | Tokyo,Japan | 1 | 112 | 1[13] | [12][14] | |
| 3 | Arisa Nakajima | September 18, 2019 | Endless Summer | Tokyo,Japan | 1 | 299 | 4[15] | [13] | |
| 4 | Yoshiko | July 13, 2020 | Close to You | Tokyo,Japan | 1 | 239 | 2[16] | [17] | |
| — | Vacated | March 9, 2021 | — | — | — | — | — | The championship was vacated afterYoshiko took time off to recover from injuries | [7] |
| 5 | Asuka | March 17, 2021 | Grow Together! | Tokyo,Japan | 1 | 116 | 0[18] | DefeatedRina Yamashita to win the vacant championship. | [8][19] |
| 6 | Ryo Mizunami | July 11, 2021 | Nanae Takahashi 25th Anniversary ~ Arigatou | Tokyo,Japan | 1 | 171 | 2[20] | [18][21] | |
| 7 | Arisa Nakajima | December 29, 2021 | Seadlinnng 2021 Final Battle | Tokyo,Japan | 2 | 281 | 3[22] | [20] | |
| — | Vacated | October 6, 2022 | — | — | — | — | — | The championship was vacated afterArisa Nakajima suffering a legitimate injury. | [9] |
| 8 | Hiroyo Matsumoto | October 19, 2022 | October Fist! | Tokyo,Japan | 1 | 70 | 0 | DefeatedItsuki Aoki in the finals of a ten-womansingle-elimination tournament to win the vacant championship. | [10] |
| 9 | Arisa Nakajima | December 28, 2022 | Seadlinnng of the Year 2022! | Tokyo,Japan | 3 | 240 | 3 | [23] | |
| 10 | Sareee | August 25, 2023 | Seadlinnng 8th Anniversary | Tokyo,Japan | 1 | 511 | 4 | [24] | |
| 11 | Veny | January 17, 2025 | Seadlinnng Shin-Kiba Series 2025 Vol. 1 | Tokyo,Japan | 2 | 151 | 2 | Veny was previously known as Asuka. | [25] |
| 12 | Makoto | June 17, 2025 | Seadlinnng Early Summer Games 2025! | Tokyo,Japan | 1 | 66 | 0 | [26] | |
| 13 | Hiroyo Matsumoto | August 23, 2025 | Seadlinnng 10th Anniversary | Tokyo,Japan | 2 | 95+ | 0 | [27] | |

As of November 25, 2025.
| † | Indicates the current champion |
|---|
| Rank | Wrestler | No. of reigns | Combined defenses | Combined days |
|---|---|---|---|---|
| 1 | Arisa Nakajima | 3 | 10 | 820 |
| 2 | Sareee | 1 | 4 | 511 |
| 3 | Asuka/Veny | 2 | 2 | 267 |
| 4 | Yoshiko | 1 | 2 | 239 |
| 5 | Nanae Takahashi | 1 | 3 | 209 |
| 6 | Ryo Mizunami | 1 | 2 | 171 |
| 7 | Hiroyo Matsumoto † | 2 | 0 | 165+ |
| 8 | Takumi Iroha | 1 | 1 | 112 |
| 9 | Makoto | 1 | 0 | 66 |