Jewels 10th Ring

On August 21, 2010 (2010-08-21), Jewels announced that the event would begin the second Rough Stone Grand Prix.^[3]

The first fights were announced on September 10, 2010 (2010-09-10), 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.^[4][5][6] More fights were announced on September 23, 2010 (2010-09-23).^[7][8]

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.^[9]

The weigh-ins were held one day prior to the event.^[10] 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.^{[11][12][13][14]}

• Opening fight: Jewels amateur rules -48 kg bout, 4 min / 1 R

Asami Higa (S-KEEP) vs. Sachiko Togashi (TEAM ☆ SPIRITS)

Draw at 4:00 of round 1.^[12][15][16]

• 1st match: Jewels official rules -52 kg bout, 5 min / 2 R

Saori Ishioka (51.8 kg (114 lb), Zendokai Koganei) vs. Celine Haga (51.8 kg (114 lb), Hellboy Hansen MMA)

Ishioka defeated Haga by decision (3-0).^{[11][12][15][17]}

• 2nd match: Jewels grappling rules -52 kg, 1 day tournament semi-finals, 4 min / 2R

Yuko Oya (51.9 kg (114 lb), DEEP Official Gym Impact) vs. Asami Kodera (51.2 kg (113 lb), Purebred Kawaguchi Redips)

Oya defeated Kodera by submission (armbar) at 2:22 of round 2.^{[11][12][15][16]}

• 3rd match: Jewels grappling rules -52 kg, 1 day tournament semi-finals, 4 min / 2R

Emi Tomimatsu (51.5 kg (114 lb), Paraestra Matsudo) vs. Ayaka Hamasaki (51.9 kg (114 lb), Abe Ani Combat Club)

Hamasaki defeated Tomimatsu by submission (armbar) at 2:34 of round 2.^{[11][12][15][16]}

• 4th match: Rough Stone GP 2010 -56 kg semi-finals, Jewels official rules, 5 min / 2 R

Asako Saioka (55.2 kg (122 lb), U-File Camp Gifu) vs. Harumi (55.9 kg (123 lb), Blue Dog Gym)

Saioka defeated Harumi by KO (punch) at 2:31 of round 1.^{[11][12][15][16]}

• 5th match: Rough Stone GP 2010 -56 kg semi-finals, Jewels official rules, 5 min / 2 R

Emi Murata (55.0 kg (121.3 lb), Abe Ani Combat Club) vs. Mizuki Inoue (55.0 kg (121.3 lb), Karate-do Shiro Shin-kai)

Inoue defeated Murata by submission (armbar) at 2:58 of round 2.^{[11][12][15][16]}

• 6th match: Rough Stone GP 2010 -48 kg semi-finals, Jewels official rules, 5 min / 2 R

Kikuyo Ishikawa (47.5 kg (105 lb), Reversal Gym Yokohama Ground Slam) vs. Misaki Ozawa (48.0 kg (105.8 lb), Zendokai Matsumoto)

Ishikawa defeated Ozawa by submission (armbar) at 2:24 of round 1.^{[11][12][15][16]}

• 7th match: Rough Stone GP 2010 -48 kg semi-finals, Jewels official rules, 5 min / 2 R

Yukiko Seki (46.7 kg (103 lb), Fight Chix) vs. Yoko Kagoshima (48.0 kg (105.8 lb), Shinagawa CS)

Seki defeated Kagoshima by decision (3-0).^{[11][12][15][16]}

• 8th match: Rough Stone GP 2010 -52 kg semi-finals, Jewels official rules, 5 min / 2 R

Hiroko Kitamura (51.6 kg (114 lb), Zendokai Koganei) vs. Rina Tomita (51.3 kg (113 lb), Abe Ani Combat Club)

Kitamura defeated Tomita by decision (3-0).^{[11][12][15][16]}

• 9th match: Rough Stone GP 2010 -52 kg semi-finals, Jewels official rules, 5 min / 2 R

Mai Ichii (51.1 kg (113 lb), Ice Ribbon) vs. Miyo Yoshida (51.3 kg (113 lb), freelancer)

Ichii defeated Yoshida by decision (3-0).^{[11][12][15][16]}

• 10th match: Jewels grappling rules -52 kg, 1 day tournament final, 4 min / 2R

Yuko Oya (51.9 kg (114 lb), DEEP Official Gym Impact) vs. Ayaka Hamasaki (51.9 kg (114 lb), Abe Ani Combat Club)

Hamasaki defeated Oya by submission (armbar) at 2:45 of round 1.^{[11][12][15][17]}

• 11th match: Shoot boxing rules -53 kg bout, 2 min / 3 R (extension 2 R)

Sakura Nomura (53.0 kg (116.8 lb), Club Barbarian Impact) vs. Yoshimi Ohama (52.9 kg (117 lb), NJKF / Inspired Motion)

Nomura defeated Ohama by unanimous decision (30-27, 30-27, 30-27).^{[11][12][15][17]}

• 12th match: Jewels official rules -58 kg bout, 5 min / 2 R

Miki Morifuji (57.1 kg (126 lb), T-Blood) vs. Aya Koyama (55.9 kg (123 lb), Fight Chix)

Morifuji defeated Koyama by submission (rear naked choke) at 1:51 of round 1.^{[11][12][15][17]}