UFC 23: Ultimate Japan 2 was a mixed martial arts event held by the Ultimate Fighting Championship on November 19, 1999 at Tokyo Bay NK Hall in Tokyo, Japan.

Pancrase: Truth 8 was an event held on October 22, 1996, at Korakuen Hall in Tokyo, Japan.

Pancrase: Hybrid 8 was an event held on October 4, 2003 at Osaka International Convention Center in Osaka, Osaka, Japan.

Pancrase: Spirit 9 was an event held on December 21, 2002 at Korakuen Hall in Tokyo, Japan.

Pancrase: Spirit 3 was an event held on March 25, 2002 at Korakuen Hall in Tokyo, Japan.

Pancrase: 2002 Neo-Blood Tournament Second Round was an event held on July 28, 2002 at Korakuen Hall in Tokyo, Japan.