Jewels 13th Ring & 14th Ring

Jewels 13th Ring and Jewels 14th Ring are two mixed martial arts (MMA) events combined in a single date and location held by promotion Jewels. The events took place on May 14, 2011 at Shin-Kiba 1st Ring in Koto, Tokyo, Japan.

Background
Due to the 2011 Tōhoku earthquake and tsunami, Jewels 12th Ring was canceled. As a result of this, Jewels decided to change their planned schedule in order to combine Jewels 13th Ring and Jewels 14th Ring into a single date and location, the first one in the afternoon and the second one in the evening, and serve as fundraisers for Japan's earthquake relief and reconstruction efforts. The location and date originally planned for Jewels 14th Ring will be used for Jewels 15th Ring. As part of the relief efforts of the 2011 Tōhoku earthquake and tsunami, 13th Ring and 14th Ring are part of the Fight for Japan charity, a collaborative effort from several Japanese combat sports organizations.

The first four bouts announced were two kickboxing matches and two MMA matches on April 13, 2011. In a notable development, Yasuko Mogi, producer of MMA promotion Valkyrie, was present during the press conference to announce that the MMA bouts would be part of the theme Jewels vs Valkyrie, where fighters representing their respective promotions would face each other.

On April 23, 2011, Jewels added Mika Nagano vs. Emi Murata to the 14th Ring card and announced three more bouts for the 13th Ring card.

Four more matches were announced on May 1, 2011, two MMA bouts for 13th Ring and two grappling bouts for 14th Ring.

On May 6, 2011, Jewels added one shoot boxing match and one more grappling match to 14th Ring.

13th Ring card
🇯🇵 Nana Ichikawa (Freelance) vs. 🇯🇵 Tamaki Usui (Reversal Gym Tokyo Standout)
 * Opening match 1: Jewels grappling rules -49 kg bout, 4:00 / 1 round
 * Usui defeated Ichikawa via submission (triangle choke) at 0:35 of round 1.

🇯🇵 Satoko Kameda (P's Lab Yokohama) vs. 🇯🇵 Kayoko Yamazaki (Paraestra Kashiwa)
 * Opening match 2: Jewels grappling rules -50 kg bout, 4:00 / 1 round
 * Kameda defeated Yamazaki via submission (heel hook) at 1:14 of round 1.

🇯🇵 Anna Saito (Fight Chix) vs. 🇯🇵 Sadae Suzumura (Cobra Kai MMA Dojo)
 * 1st match: Jewels official rules -54 kg bout, 5:00 / 2 rounds
 * Suzumura defeated Saito via technical submission (armbar) at 2:10 of round 2.

🇯🇵 Yukiko Seki (Fight Chix) vs. 🇯🇵 Yuka Okumura (Soul Fighters Japan)
 * 2nd match: Jewels official rules -48 kg bout, 5:00 / 2 rounds
 * Seki defeated Okumura via split decision.

🇯🇵 Asami Higa (S-Keep) vs. 🇯🇵 Megumi Morioka (Wajutsu Keishukai Iwate)
 * 3rd match: Jewels vs Valkyrie, Jewels official rules -50 kg bout, 5:00 / 2 rounds
 * Morioka defeated Higa via unanimous decision.

Esui (Smash Shoji Dojo) vs. 🇯🇵 Chisa Yonezawa (Cobra Kai MMA Dojo)
 * 4th match: Jewels vs Valkyrie, Jewels special rules (pound allowed) -61 kg bout, 5:00 / 2 rounds
 * Esui defeated Yonezawa via TKO (doctor stoppage) at 5:00 of round 1.

🇯🇵 Miku Hayashi (Bungeling Bay Spirit) vs. 🇯🇵 Rio Kamikaze (Kamikaze Juku)
 * 5th match: Jewels kickboxing rules -53.52 kg bout, 2:00 / 3 rounds
 * Hayashi defeated Kamikaze via unanimous decision (30-29, 30-29, 29-28).

🇯🇵 Madoka Okada (Angura) vs. 🇯🇵 Momoka Mandokoro (T.B. Nation)
 * 6th match: Jewels kickboxing rules -47 kg bout, 2:00 / 3 rounds
 * Majority draw (30-29, 30-30, 29-29) after three rounds.

🇯🇵 Kozue Nagashima (y-park) vs. 🇯🇵 Yukimi Kamikaze (Kamikaze Juku)
 * 7th match: Jewels kickboxing rules -57.15 kg bout, 3:00 / 3 rounds
 * Nagashima defeated Kamikaze via unanimous decision (30-29, 30-29, 30-29).

14th Ring card
🇯🇵 Kayoko Yamazaki (Paraestra Kashiwa) vs. 🇨🇳 O Quin Mei (Core)
 * Opening match: Jewels grappling rules -50 kg bout, 4:00 / 1 round
 * Time limit draw after 4:00.

🇯🇵 Emi Tomimatsu (Paraestra Matsudo) vs. 🇯🇵 Mayumi Suzuki (Iwaki K-3)
 * 1st match: Jewels grappling rules -54 kg bout, 4:00 / 2 rounds
 * Tomimatsu defeated Suzuki via submission (rear-naked choke) at 0:49 of round 2.

🇯🇵 Ricaco Yuasa (Pogona Club) vs. 🇯🇵 Kazue Matake (Wajyutsu Keisyukai Tokyo)
 * 2nd match: Jewels vs Valkyrie, Jewels grappling rules -56.5 kg bout, 4:00 / 2 rounds
 * Yuasa defeated Matake via unanimous decision.

🇯🇵 Mizuki Inoue (White Heart Karate Association) vs. 🇯🇵 Natsuka (Shoot Boxing / Risshikaikan)
 * 3rd match: Jewels shoot boxing rules -54 kg bout, 2:00 / 3 rounds
 * Inoue defeated Natsuka via unanimous decision (30-28, 30-28, 30-27).

🇯🇵 Miyoko Kusaka (Grabaka) vs. 🇯🇵 Sachiko Yamamoto (Angura)
 * 4th match: Jewels vs Valkyrie, Jewels official rules -48 kg bout, 5:00 / 2 rounds
 * Yamamoto defeated Kusaka via unanimous decision.

🇯🇵 Mika Nagano (Core) vs. 🇯🇵 Emi Murata (AACC)
 * 5th match: Jewels official rules -54 kg bout, 5:00 / 2 rounds
 * Nagano defeated Murata via submission (armbar) at 1:40 of round 1.

🇯🇵 Ayaka Hamasaki (AACC) vs. 🇯🇵 Saori Ishioka (Zendokai Koganei)
 * 6th match: Jewels grappling rules lightweight bout, 4:00 / 2 rounds
 * Hamasaki defeated Ishioka via split decision.

🇯🇵 Misaki Takimoto (Zendokai Yokohama) vs. 🇯🇵 Naho Sugiyama (Wajutsu Keishukai A3)
 * 7th match: Jewels vs Valkyrie, Jewels special rules (pound allowed) -48 kg bout, 5:00 / 2 rounds
 * Sugiyama defeated Takimoto via submission (rear-naked choke) at 4:06 of round 1.

Jewels vs. Valkyrie result
Valkyrie defeated Jewels 3-2 in the best of five series.