NEWARK, NEW JERSEY - JUNE 07: Kayla Harrison faces off with former champion Amanda Nunes after her victory over Julianna Pena in the UFC women's bantamweight championship bout during the UFC 316 event ...

How do the best mixed martial artists on the planet measure up against each other, regardless of division? That's the question our USA TODAY Sports/MMA Junkie women's pound-for-pound rankings aims to ...