Rumble on the Rock (also known as K-1 Rumble on the Rock) was an American mixed martial arts (MMA) promotion company in promotion with K-1 and operated by Fighting and Entertainment Group and Rumble World Entertainment. Headquartered in Hawaii, Rumble on the Rock was formed in 2003 and enforces the Unified Rules of Mixed Martial Arts with events structured around tournaments.
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. Penn, Takanori Gomi, Jake Shields, Gilbert Melendez, Carlos Condit, Homer Moore, Chael Sonnen, Rodrigo Gracie, Ricco Rodriguez, Yushin Okami, Frank Trigg, Royler Gracie, Dave Menne, Matt Lindland, Thales Leites, and more.
Rumble on the Rock's rules are based upon the Unified Rules of Mixed Martial Arts that were originally established by the New Jersey State Athletic Control Board and modified by the Nevada State Athletic Commission. These rules have been adopted across the US in other states that regulate mixed martial arts. 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.
All bouts are contested over three, five-minute rounds, with the exception of five-round championship bouts. There is a one-minute rest period in-between rounds. 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. Fighters must use approved light gloves (4-6 ounces) that allow fingers to grab. 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.
Matches usually end via:
A fight can also end in a technical decision, technical draw, disqualification, forfeit or no contest.
The ten-point must system is used for all Rumble on the Rock bouts; three judges score each round and the winner of each receives ten points, the loser nine points or less. If the round is even, both fighters receive ten points. The decision is announced at the end of the match but the judge's scorecards are not announced.
The following are considered fouls in Rumble on the Rock:
When a foul is charged, the referee in their discretion may deduct one or more points as a penalty. If a foul incapacitates a fighter, then the match may end in a disqualification if the foul was intentional, or a no contest if unintentional. If a foul causes a fighter to be unable to continue later in the bout, it ends with a technical decision win to the injured fighter if the injured fighter is ahead on points, otherwise it is a technical draw.