The King of Kings Tournament 1999 was a series of three separate mixed martial arts events held by the Fighting Network Rings (RINGS).
The tournament took place in both Tokyo and Osaka between October 28, 1999 and February 26, 2000.
The fights would consist of two five-minute rounds and, as in all RINGS bouts, no striking was allowed to the head of a grounded opponent.
[1] The first event of the tournament took place on October 28, 1999 at the Yoyogi National Stadium in Tokyo, Japan.
[3] The third and final event of the tournament took place on February 26, 2000 at the Nippon Budokan in Tokyo, Japan.