The champions lists have been updated through fights on Dec. 30.
Here's a look at the current and all-time UFC champions.
For more upcoming fights, go to the MMA schedule page.
UFC 241 viewers guide - Nate Diaz looking to make a statement in return
4dBrett Okamoto and Jeff Wagenheim
Cormier, Miocic hit scale lighter than for '18 fight
22hMarc Raimondi
Sources: Velasquez to wrestle on U.S. lucha cards
14hMarc Raimondi
Sources: Njokuani among nine gone from Bellator
20hMarc Raimondi
Nate Diaz lights up joint at UFC open workout
3dMarc Raimondi
Zingano cut by UFC, cites 'project' as reason
3dMarc Raimondi and Ariel Helwani
UFC's Ngannou joins cast of 'Fast & Furious 9'
3dMarc Raimondi
Ariel & The Bad Guy: Is Nate Diaz's return vs. Pettis too tough a task?
3dAriel Helwani and Chael Sonnen