Pride Shockwave 2003 (Otoko Matsuri in Japanese) was a mixed martial arts event held by the Pride Fighting Championships. Gary Goodridge announced he would retire from Pride. It took place at the Saitama Super Arena in Saitama, Japan on December 31, 2003.

Rizin World Grand-Prix 2016: Final Round was a mixed martial arts event held by the Rizin Fighting Federation on December 31, 2016 at the Saitama Super Arena in Saitama, Japan.