Rules for the UFC Roster Rankings:
- Fighters can only rank in one weight class
- Fighters who decide to change their weight class will still be ranked in their previous weight class until they have fought at their new weight class
- Since MMA judging is often unreliable, wins and losses will be determined by mmadecisions.com
- Fighters on quasi-retirement will be ineligible
- Suspended fighters are still eligible to be ranked
- Fighters must make their UFC debut before being ranked, however, returning UFC fighters who've been re-signed to the UFC can be ranked immediately
- The L's represent the losses they have to avenge in order to be ranked higher any irrelevant losses are no longer listed
- Jose Aldo
- Frankie Edgar – L Aldo
- Ricardo Lamas –
- Chad Mendes – L Aldo
- Cub Swanson – L Mendes, L Lamas, L Aldo
- Chan Sung Jung – L Aldo
- Nik Lentz +3 – L Mendes
- Dustin Poirier -1 – L Sung Jung, L Swanson
- Darren Elkins -1 – Mendes
- Hatsu Hioki -1 – L Elkins, L Lamas
- Clay Guida – L Hioki, L Mendes
- Erik Koch – L Poirier, L Mendes, L Lamas
- Dennis Siver – L Swanson
- Jeremy Stephens –
- Charles Oliveira – L Swanson, L Edgar
- Conor McGregor –
- Tom Niinimaki
- Rani Yahya – L Niinimaki, L Mendes
- Hacran Dias –
- Manny Gamburyan – L Aldo
- Max Holloway – L McGregor, L Poirier
- Diego Brandao – L Elkins
- Dennis Bermudez – L Brandao, L Holloway
- Steven Siler – L Bermudez, L Elkins, L Mendes
- Marcus Brimage – L McGregor
- Jimmy Hettes – L Brimage
- Rony Jason – L Stephens
- Josh Clopton – L Siler, L Yahya
- Mike Brown – L Siler, L Gamburyan, L Yahya, L Aldo
- Cole Miller – L Siler, L Gamburyan
- Andy Ogle – L Miller
- Akira Corassani – L Ogle
- Robbie Peralta – L Corassani
- Kevin Souza –
- Felipe Arantes – L Souza
- Maximo Blanco – L Brimage
- Eddie Yagin –
- Sam Sicilia – L Blanco, L Jason
- Matt Grice – L Bermudez, L Lamas
- Rodrigo Damm +1 – L Blanco
- Andre Fili +1 –
- Estevan Payan +1 – L Stephens
- Mike Wilkinson +1 – L Jason
- Daniel Pineda +1 – L Brown, L Brandao
- Rob Whiteford +1 – L Hettes
- Godofredo Pepey +1 – L Sicilia, L Arantes, L Jason
- Jeremy Larsen +1 – L Fili
- Doo Ho Choi - yet to debut
- Will Chope - yet to debut
- Tatsuya Kawajiri - yet to debut
- Sean Soriano - yet to debut
- Bekbulat Magomedov - yet to debut
- Zubair Tuhugov - yet to debut
