The super heavyweight division in mixed martial arts generally refers to fighter that weigh above 265 lb (120 kg).
Most super-heavyweight fights have occurred in Japan, where mixed martial arts organizations are not obligated by law to implement weight classes. Many open-weight bouts are designed around the theme of matching an extraordinarily large fighter against a much smaller but more skilled opponent (freak-show fights). Therefore, the distinction between super heavyweight and heavyweight holds little relevance in promotions such as DREAM and the Pride Fighting Championships.
In the United States, where state sanctioning laws often prohibit inter-divisional bouts, the super heavyweight class is necessary to pair two fighters above 265 lb.
The division has never been fully endorsed by any major promotion (especially the UFC) and there are a number of good reasons why. The lack of fighting talent at that weight is often the major reason, but there is also the fact that fighters can get grossly out of shape which lead to potentially dangerous situations such as Kimbo Slice and Dada 5000 which almost resulted in tragedy.
There are numerous examples of super heavyweight fights failing to live up to exceptions. And Whilst respect always has to be given to anybody willing to make the walk into the cage, unfortunately Mark Potter vs Tomasz Czerwinski was just another example of another disappointment.
See why on the player below: