Koseki wins 14th defense of WBC women's atomweight title

Koseki wins 14th defense of WBC women's atomweight title

TOKYO, Japan - Momo Koseki of Japan celebrates after defeating Britain's Denise Castle by technical knockout in the eighth round of their WBC atomweight title match in Tokyo on Aug. 2, 2014. Koseki defended her crown for the 14th time.

Koseki wins 14th defense of WBC women's atomweight title

Koseki wins 14th defense of WBC women's atomweight title

TOKYO, Japan - Champion Momo Koseki of Japan (R) delivers a punch to Britain's Denise Castle during the fifth round of their WBC atomweight title match in Tokyo on Aug. 2, 2014. Koseki defeated Castle, the WBC's second-ranked fighter in the division, by technical knockout in the eighth round to defend her crown for the 14th time.

Koseki defends WBC female atomweight title

Koseki defends WBC female atomweight title

TOKYO, Japan - Momo Koseki (L) of Japan skirts under the defenses of Shin Goo Joo of South Korea in the sixth round of the WBC female atomweight title match at Ariake Colosseum on March 27, 2010, to successfully defend her title for the fourth time with a unanimous decision.

Koseki to face S. Korea's Shin to defend title

Koseki to face S. Korea's Shin to defend title

TOKYO, Japan - Women's WBC atomweight title holder Momo Koseki (L) of Japan and South Korean challenger Shin Gun Joo pose for photographs after the signing ceremony for their title match at Korakuen Hall in Tokyo on March, 26, 2010, a day before the match at Ariake Colosseum in Tokyo.

Koseki defends WBC atomweight title

Koseki defends WBC atomweight title

TOKYO, Japan - Japanese champion Momo Koseki celebrates after beating her compatriot challenger Nao Ikeyama in the women's WBC atomweight title match in Tokyo on May 2. Koseki retained her title by a 3-0 decision.

Koseki defends WBC atomweight title

Koseki defends WBC atomweight title

TOKYO, Japan - Japanese champion Momo Koseki (R) delivers a punch to compatriot challenger Nao Ikeyama in the ninth round of their women's WBC atomweight title match in Tokyo on May 2. Koseki retained her title by a 3-0 decision.

Koseki defends WBC atomweight title

Koseki defends WBC atomweight title

TOKYO, Japan - Japanese champion Momo Koseki (R) delivers a punch to compatriot challenger Nao Ikeyama in the ninth round of their women's WBC atomweight title match in Tokyo on May 2. Koseki retained her title by a 3-0 decision. (Kyodo)

Koseki defends WBC atomweight title

Koseki defends WBC atomweight title

TOKYO, Japan - Japanese champion Momo Koseki celebrates after beating her compatriot challenger Nao Ikeyama in the women's WBC atomweight title match in Tokyo on May 2. Koseki retained her title by a 3-0 decision. (Kyodo)

Japan's Koseki defends women's atom weight title

Japan's Koseki defends women's atom weight title

Japanese champion Momo Koseki (L) delivers a punch to challenger Aisah Alico of the Philippines in the second round of their WBC women's atom weight title match in Tokyo on Feb. 19, 2015. Koseki defended her title for the 15th time with a technical knockout in the second round. (Kyodo) ==Kyodo

Koseki wins world female 102-pound unification match

Koseki wins world female 102-pound unification match

WBC atomweight champion Momo Koseki celebrates after beating WBA light-minimumweight titlist Ayaka Miyao, both from Japan, in their world female 102-pound unification bout in Tokyo on Oct. 22, 2015. Koseki won with a unanimous 3-0 decision, extending her defense to 16. (Kyodo) ==Kyodo

Koseki wins world female 102-pound unification match

Koseki wins world female 102-pound unification match

WBC atomweight champion Momo Koseki (R) and WBA light-minimumweight titlist Ayaka Miyao, both from Japan, exchange punches during the first round of their world female 102-pound unification bout in Tokyo on Oct. 22, 2015. Koseki won with a unanimous 3-0 decision, extending her defense to 16. (Kyodo) ==Kyodo

Japan's Koseki defends women's atom weight title

Japan's Koseki defends women's atom weight title

Japanese champion Momo Koseki (R) delivers a punch to challenger Aisah Alico of the Philippines in the second round of their WBC women's atom weight title match in Tokyo on Feb. 19, 2015. Koseki defended her title for the 15th time with a technical knockout in the second round. (Kyodo) ==Kyodo

Japan's Koseki defends women's atom weight title

Japan's Koseki defends women's atom weight title

Japanese champion Momo Koseki poses with her championship belt after beating challenger Aisah Alico of the Philippines in their WBC women's atom weight title match in Tokyo on Feb. 19, 2015. Koseki defended her title for the 15th time with a technical knockout in the second round. (Kyodo) ==Kyodo

Japan's Koseki defends women's atom weight title

Japan's Koseki defends women's atom weight title

Japanese champion Momo Koseki celebrates after her victory over challenger Aisah Alico of the Philippines in their WBC women's atom weight title match in Tokyo on Feb. 19, 2015. Koseki defended her title for the 15th time with a technical knockout in the second round. (Kyodo) ==Kyodo

Koseki unifies women's lightest boxing title after all-Japanese bout

Koseki unifies women's lightest boxing title after all-Japanese bout

WBC women's atomweight champion Momo Koseki (L) of Japan reacts after being announced the winner of a breathtaking 10-round title unification bout with WBA light minimumweight ruler and compatriot Ayaka Miyao in Tokyo on Oct. 22, 2015. Koseki defended boxing's lightest-division title for the 16th time, the most in Japan. (Kyodo) ==Kyodo

Koseki unifies women's world boxing title after all-Japanese bout

Koseki unifies women's world boxing title after all-Japanese bout

WBC women's atomweight champion Momo Koseki (L) of Japan throws a left to WBA light minimumweight ruler and compatriot Ayaka Miyao in the fourth and won a 10-round unanimous decision in their action-packed title unification bout in Tokyo on Oct. 22, 2015. It was Koseki's 16th successful defense of boxing's lightest-weight title, the most in Japan. (Kyodo) ==Kyodo

Koseki wins world female 102-pound unification match

Koseki wins world female 102-pound unification match

WBC atomweight champion Momo Koseki celebrates after beating WBA light-minimumweight titlist Ayaka Miyao, both from Japan, in their world female 102-pound unification bout in Tokyo on Oct. 22, 2015. Koseki won with a unanimous 3-0 decision, extending her defense to 16. (Kyodo) ==Kyodo

Koseki defends WBC female atomweight title

Koseki defends WBC female atomweight title

TOKYO, Japan - Momo Koseki (L) of Japan skirts under the defenses of Shin Goo Joo of South Korea in the sixth round of the WBC female atomweight title match at Ariake Colosseum on March 27, 2010, to successfully defend her title for the fourth time with a unanimous decision. (Kyodo)

Koseki to face S. Korea's Shin to defend title

Koseki to face S. Korea's Shin to defend title

TOKYO, Japan - Women's WBC atomweight title holder Momo Koseki (L) of Japan and South Korean challenger Shin Gun Joo pose for photographs after the signing ceremony for their title match at Korakuen Hall in Tokyo on March, 26, 2010, a day before the match at Ariake Colosseum in Tokyo. (Kyodo)

Koseki wins 14th defense of WBC women's atomweight title

Koseki wins 14th defense of WBC women's atomweight title

TOKYO, Japan - Champion Momo Koseki of Japan (R) delivers a punch to Britain's Denise Castle during the fifth round of their WBC atomweight title match in Tokyo on Aug. 2, 2014. Koseki defeated Castle, the WBC's second-ranked fighter in the division, by technical knockout in the eighth round to defend her crown for the 14th time. (Kyodo)

WBC minimum flyweight match

WBC minimum flyweight match

Challenger Momo Koseki (R) of Japan lands a punch on the champion Yuko Kuroki during a women's WBC minimum flyweight match at Kyuden Kinen Gymnasium in Fukuoka on Dec. 17, 2017. Koseki snatched the title. (Kyodo) ==Kyodo