| UFC 23: Ultimate Japan 2 | ||||
|---|---|---|---|---|
 The poster for UFC 23: Ultimate Japan 2 | ||||
| Promotion | Ultimate Fighting Championship | |||
| Date | November 19, 1999 | |||
| Venue | Tokyo Bay NK Hall | |||
| City | Tokyo, Japan | |||
| Event chronology | ||||
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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.