We’ve added a very minor new feature to our standard ranking pages: You can now filter the ranking list to only show undefeated fighters.
For example, here are all currently ranked undefeated Heavyweights:
http://www.fightmatrix.com/mma-ranks/heavyweight-265-lbs/?OrgFilter=&NatFilter=&chkUndef=on
Or how about undefeated heavyweights whose last fight was in the UFC:
http://www.fightmatrix.com/mma-ranks/heavyweight-265-lbs/?OrgFilter=UFC&NatFilter=&chkUndef=on
Finally, how about undefeated American heavyweights?
http://www.fightmatrix.com/mma-ranks/heavyweight-265-lbs/?OrgFilter=&NatFilter=US&chkUndef=on