Jewels MMA event in 2010
Jewels 10th Ring was a mixed martial arts (MMA) event held by MMA promotion Jewels. The event took place on  10, 2010 (2010--) at Shin-Kiba 1st Ring in Koto, Tokyo, Japan. It hosted the opening round of the second Rough Stone Grand Prix.
Background.
On  21, 2010 (2010--), Jewels announced that the event would begin the second Rough Stone Grand Prix.
The first fights were announced on  10, 2010 (2010--), along with the announcement that Seo Hee Ham's conflicting schedule led Jewels to release her. Ham's replacement was to be determined with the bout between Celine Haga and Saori Ishioka. More fights were announced on  23, 2010 (2010--).
Sixteen-year-old kickboxer Mizuki Inoue made her mixed martial arts debut on the card as part of the -56 kg bracket of the Rough Stone Grand Prix.
The weigh-ins were held one day prior to the event. It was later announced that Ham would return to Jewels in December to reclaim her place in the Lightweight Queen Tournament semi-final. As a result, the bout between Ishioka and Haga was changed to a regular match.
Results.
 Asami Higa (S-KEEP) vs. Sachiko Togashi (TEAM ☆ SPIRITS)
Draw at 4:00 of round 1.
 Saori Ishioka (, Zendokai Koganei) vs. Celine Haga (, Hellboy Hansen MMA)
Ishioka defeated Haga by decision (3-0).
 Yuko Oya (, DEEP Official Gym Impact) vs. Asami Kodera (, Purebred Kawaguchi Redips)
Oya defeated Kodera by submission (armbar) at 2:22 of round 2.
 Emi Tomimatsu (, Paraestra Matsudo) vs. Ayaka Hamasaki (, Abe Ani Combat Club)
Hamasaki defeated Tomimatsu by submission (armbar) at 2:34 of round 2.
 Asako Saioka (, U-File Camp Gifu) vs. Harumi (, Blue Dog Gym)
Saioka defeated Harumi by KO (punch) at 2:31 of round 1.
 Emi Murata (, Abe Ani Combat Club) vs. Mizuki Inoue (, Karate-do Shiro Shin-kai)
Inoue defeated Murata by submission (armbar) at 2:58 of round 2.
 Kikuyo Ishikawa (, Reversal Gym Yokohama Ground Slam) vs. Misaki Ozawa (, Zendokai Matsumoto)
Ishikawa defeated Ozawa by submission (armbar) at 2:24 of round 1.
 Yukiko Seki (, Fight Chix) vs. Yoko Kagoshima (, Shinagawa CS)
Seki defeated Kagoshima by decision (3-0).
 Hiroko Kitamura (, Zendokai Koganei) vs. Rina Tomita (, Abe Ani Combat Club)
Kitamura defeated Tomita by decision (3-0).
 Mai Ichii (, Ice Ribbon) vs. Miyo Yoshida (, freelancer)
Ichii defeated Yoshida by decision (3-0).
 Yuko Oya (, DEEP Official Gym Impact) vs. Ayaka Hamasaki (, Abe Ani Combat Club)
Hamasaki defeated Oya by submission (armbar) at 2:45 of round 1.
 Sakura Nomura (, Club Barbarian Impact) vs. Yoshimi Ohama (, NJKF / Inspired Motion)
Nomura defeated Ohama by unanimous decision (30-27, 30-27, 30-27).
 Miki Morifuji (, T-Blood) vs. Aya Koyama (, Fight Chix)
Morifuji defeated Koyama by submission (rear naked choke) at 1:51 of round 1.
References.
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