Headquartered Hawaii, Rumble on the Rock was formed in 2003 and enforces the Unified Rules of Mixed Martial Arts with events structured around tournaments.
[1][2] Rumble on the Rock has held over 30 events and presided nearly 300 matches highlighting some of the best international talent, establishing and enhancing the careers of top ranked fighters including Anderson Silva, B.J.
As a result, they have become the standard de facto set of rules for professional mixed martial arts across the US and for cage-based MMA worldwide.
As per the Unified Rules of MMA, Rumble on the Rock only allows competitors to fight in approved shorts, without shoes or any other sort of foot padding.
The referee has the right to stop the fighters and stand them up if they reach a stalemate on the ground (where neither are in a dominant position nor working toward one) after a verbal warning.