After struggles in 2025, Deep and Deep Jewels Microweight Champion Saori “Little Giant” Oshima seeks a fresh start this year when she competes on March 7th at Rizin Fighting Federation 52 in Tokyo, Japan. Oshima faces Keito “Kate Lotus” Oyama in a 49kg super atomweight bout on the card.

Officials announced the matchup during intermission at Rizin’s year-end event on Wednesday. Oshima fell to champ Seika Izawa in their Rizin title bout on November 3rd. Oyama hopes to propel herself into title contention by defeating Oshima and extending her current four-fight winning streak.

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A new bantamweight champion will be crowned on February 23rd when Deep Jewels returns to New Pier Hall in Tokyo, Japan. Momoko Saito and Juki Sue are set to face off for the vacant title in the main event of Deep Jewels 52, which had a total of 13 fights confirmed earlier this week.

Saito went undefeated in four fights for Deep Jewels in 2024, but she has not fought since scoring a TKO victory at Deep Jewels 47. Sue earned quick submissions in all three of her Deep bouts in 2025, with the longest fight lasting a mere 73 seconds, and she is unbeaten since December 2022.

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Facing her greatest career adversity, Rizin FF Women’s Super Atomweight Champion Seika Izawa rallied from the brink of defeat and retained her title tonight at Rizin Fighting Federation: “Shiwasu no Cho Tsuwamono Matsuri” in Saitama, Japan. Izawa submitted Rena Kubota in the second round.

Izawa, who has steamrolled most of her opponents during her undefeated career thus far, was very nearly knocked out by a left hook and follow-up punches from Kubota early in tonight’s title fight. She recovered quickly, however, and proceeded to dominate the rest of the bout on the ground.

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In her first fight back since leaving her long-time gym at AACC, former Rizin champion Ayaka Hamasaki scored a much-needed victory tonight at Deep Jewels 51 in Tokyo, Japan. The newly-freelance Hamasaki defeated Ye Ji Lee with a strong performance in the 49kg super atomweight main event.

Though she was not able to secure a finish, Hamasaki was still dominant throughout tonight’s headlining bout and left no doubt in the judges’ minds. In the co-main event, also at super atomweight, former interim strawweight champion Si Woo “Korean Queen Bee” Park stopped Saki Kitamura.

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Deep Jewels closed out 2025 with its final event of the year tonight at New Pier Hall in Tokyo, Japan. Deep Jewels 51 was headlined by a super atomweight showdown between former Rizin champion Ayaka Hamasaki and Korean upset queen Ye Ji Lee, who sought another big victory.

In the 49kg super atomweight co-main event, former Deep Jewels Interim Strawweight Champion Si Woo “Korean Queen Bee” Park dropped down in weight to battle Saki Kitamura. Also at 49kg, Eru Takebayashi clashed with Sarah Ellen. MMARising.com has live play-by-play for Deep Jewels 51.

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Rizin FF Women’s Super Atomweight Champion Seika Izawa retained her title and sent a stern message to her likely next challenger tonight at Rizin Fighting Federation: “Landmark Vol. 12” in Kobe, Hyogo, Japan. Izawa defeated Saori “Little Giant” Oshima in tonight’s 49kg co-main event.

Right from the opening bell, Izawa was a step ahead of Deep and Deep Jewels microweight champ Oshima, who suffered her first Rizin defeat in disappointing fashion. Also on tonight’s main card, Keito “Kate Lotus” Oyama outpointed the previously unbeaten Bo Mi Lee in a 50kg bout.

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After recently leaving her long-time AACC team, Ayaka Hamasaki will seek a fresh start when she returns to competition on November 23rd at Deep Jewels 51 in Tokyo, Japan. Hamasaki is set to face Ye Ji Lee, who is coming off of a big upset win in May, in the 49kg super atomweight main event.

Deep Jewels officials announced the headliner and ten additional fights for the card on Wednesday. In the co-main event, former Deep Jewels Interim Strawweight Champion Si Woo “Korean Queen Bee” Park drops back down to the super atomweight division to battle skilled striker Saki Kitamura.

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For the first time since July 2023, Rizin FF Women’s Super Atomweight Champion Seika Izawa is set to defend her title on November 3rd at Rizin Fighting Federation: “Landmark Vol. 12” in Kobe, Hyogo, Japan. Izawa faces Deep and Deep Jewels Microweight Champion Saori “Little Giant” Oshima.

Rizin FF officials announced the bout along with other matchups for the card today. Izawa has only made one title defence since the end of 2022 due to questionable matchmaking and injuries or weight issues with opponents. Also on the card, Noeru “Noel” Narita takes on Misaki “Iruka Umisaki” Suda.

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