Jewels 10th Ring

Jewels 10th Ring was a mixed martial arts (MMA) event held by MMA promotion Jewels. The event took place on October 10, 2010 at Shin-Kiba 1st Ring in Koto, Tokyo, Japan. It hosted the opening round of the second Rough Stone Grand Prix.

Background
On August 21, 2010, Jewels announced that the event would begin the second Rough Stone Grand Prix.

The first fights were announced on September 10, 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 September 23, 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)
 * Opening fight: Jewels amateur rules -48 kg bout, 4 min / 1 R
 * Draw at 4:00 of round 1.

🇯🇵 Saori Ishioka (51.8 kg, Zendokai Koganei) vs. 🇳🇴 Celine Haga (51.8 kg, Hellboy Hansen MMA)
 * 1st match: Jewels official rules -52 kg bout, 5 min / 2 R
 * Ishioka defeated Haga by decision (3-0).

🇯🇵 Yuko Oya (51.9 kg, DEEP Official Gym Impact) vs. 🇯🇵 Asami Kodera (51.2 kg, Purebred Kawaguchi Redips)
 * 2nd match: Jewels grappling rules -52 kg, 1 day tournament semi-finals, 4 min / 2R
 * Oya defeated Kodera by submission (armbar) at 2:22 of round 2.

🇯🇵 Emi Tomimatsu (51.5 kg, Paraestra Matsudo) vs. 🇯🇵 Ayaka Hamasaki (51.9 kg, Abe Ani Combat Club)
 * 3rd match: Jewels grappling rules -52 kg, 1 day tournament semi-finals, 4 min / 2R
 * Hamasaki defeated Tomimatsu by submission (armbar) at 2:34 of round 2.

🇯🇵 Asako Saioka (55.2 kg, U-File Camp Gifu) vs. 🇯🇵 Harumi (55.9 kg, Blue Dog Gym)
 * 4th match: Rough Stone GP 2010 -56 kg semi-finals, Jewels official rules, 5 min / 2 R
 * Saioka defeated Harumi by KO (punch) at 2:31 of round 1.

🇯🇵 Emi Murata (55.0 kg, Abe Ani Combat Club) vs. 🇯🇵 Mizuki Inoue (55.0 kg, Karate-do Shiro Shin-kai)
 * 5th match: Rough Stone GP 2010 -56 kg semi-finals, Jewels official rules, 5 min / 2 R
 * Inoue defeated Murata by submission (armbar) at 2:58 of round 2.

🇯🇵 Kikuyo Ishikawa (47.5 kg, Reversal Gym Yokohama Ground Slam) vs. 🇯🇵 Misaki Ozawa (48.0 kg, Zendokai Matsumoto)
 * 6th match: Rough Stone GP 2010 -48 kg semi-finals, Jewels official rules, 5 min / 2 R
 * Ishikawa defeated Ozawa by submission (armbar) at 2:24 of round 1.

🇯🇵 Yukiko Seki (46.7 kg, Fight Chix) vs. 🇯🇵 Yoko Kagoshima (48.0 kg, Shinagawa CS)
 * 7th match: Rough Stone GP 2010 -48 kg semi-finals, Jewels official rules, 5 min / 2 R
 * Seki defeated Kagoshima by decision (3-0).

🇯🇵 Hiroko Kitamura (51.6 kg, Zendokai Koganei) vs. 🇯🇵 Rina Tomita (51.3 kg, Abe Ani Combat Club)
 * 8th match: Rough Stone GP 2010 -52 kg semi-finals, Jewels official rules, 5 min / 2 R
 * Kitamura defeated Tomita by decision (3-0).

🇯🇵 Mai Ichii (51.1 kg, Ice Ribbon) vs. 🇯🇵 Miyo Yoshida (51.3 kg, freelancer)
 * 9th match: Rough Stone GP 2010 -52 kg semi-finals, Jewels official rules, 5 min / 2 R
 * Ichii defeated Yoshida by decision (3-0).

🇯🇵 Yuko Oya (51.9 kg, DEEP Official Gym Impact) vs. 🇯🇵 Ayaka Hamasaki (51.9 kg, Abe Ani Combat Club)
 * 10th match: Jewels grappling rules -52 kg, 1 day tournament final, 4 min / 2R
 * Hamasaki defeated Oya by submission (armbar) at 2:45 of round 1.

🇯🇵 Sakura Nomura (53.0 kg, Club Barbarian Impact) vs. 🇯🇵 Yoshimi Ohama (52.9 kg, NJKF / Inspired Motion)
 * 11th match: Shoot boxing rules -53 kg bout, 2 min / 3 R (extension 2 R)
 * Nomura defeated Ohama by unanimous decision (30-27, 30-27, 30-27).

🇯🇵 Miki Morifuji (57.1 kg, T-Blood) vs. 🇯🇵 Aya Koyama (55.9 kg, Fight Chix)
 * 12th match: Jewels official rules -58 kg bout, 5 min / 2 R
 * Morifuji defeated Koyama by submission (rear naked choke) at 1:51 of round 1.