1 RIZIN SARABAの宴 Dec 29, 2015 RIZIN SARABAの宴 2015 360 min 1 vues Rizin World Grand Prix 2015: Part 1 - Saraba was an inaugural mixed martial arts event held by the Rizin Fighting Federation on December 29, 2015 at the Saitama Super Arena in Saitama, Japan .