Rizin World Grand Prix 2017 Opening Round Part 1 was a mixed martial arts event held by the Rizin Fighting Federation on July 30, 2017 at the Saitama Super Arena in Saitama, Japan.
Rizin World Grand Prix 2017 Opening Round Part 1 was a mixed martial arts event held by the Rizin Fighting Federation on July 30, 2017 at the Saitama Super Arena in Saitama, Japan.
