In 1999 Dan Henderson entered the Rings King of Kings 32 man Open Weight tournament in Japan
The tournament was stacked with some of the best fighters in the world, Antonio Rodrigo Nogueira, Renzo Gracie, Jeremy Horn, Gilbert Yvel, Kiyoshi Tamura, Renato Sobral, Maurice Smith, Dave Menne, Tsuyoshi Kohsaka, Valentijn Overeem, Alistair Overeem.
Henderson was one of the lightests fighter to enter the tournament. (90kg / 198lbs)
A Block = Bakouri Gogitidze
A Block = Hiromitsu Kanehara
Final = Gilbert Yvel
Final = Antonio Rodrigo Nogueira
Final = Renato Sobral