Career
He has fought for most of his career in the Shooto organization. ONE Fighting Championship
However, just days before the event, an injury to Leone scrapped the bout from the card all together, after leaving Kojima without an opponent for the event. Fight Matrix
2011 Comeback of the Year
Shooto
Shooto Flyweight Championship (1 Time)
Three Successful Title Defenses
Most Successful Title Defenses in the history of the Flyweight Division (3).