Rizin World Grand Prix 2017: Opening Round - Part 2 was a mixed martial arts event held by the Rizin Fighting Federation on October 15, 2017 at the Marine Messe Fukuoka in Fukuoka, Japan.
Rizin World Grand Prix 2017: Final Round was a mixed martial arts event held by the Rizin Fighting Federation on December 31, 2017 at the Saitama Super Arena in Saitama, Japan.
