Momo Koseki successfully defended her WBC atomweight crown for the 13th time Monday, beating Thai challenger Angor Onesongchaigym to match Yoko Gushiken's Japanese men's record for consecutive title defenses.
Koseki stopped 10th-ranked Angor at 1 minute, 43 seconds, in the ninth round at Tokyo's Korakuen Hall.
"Men's and women's records are valued differently, so it's impossible to really compare," said Koseki. "But getting my 13th title defense, I feel proud that I could get my body in 100 percent condition to win."
In other title bouts, Naoko Shibata won a unanimous decision over 11th-ranked Guadalupe Martinez of Mexico in her first successful defense of the IBF women's light flyweight crown.
WBC light minimumweight champion Ayaka Miyao scored a fifth-round knockout of 10th-ranked Buangern Onesongchaigym of Thailand in her fourth successful title defense.