Heavyweight (265)
#1 Stipe Miocic
#2 Fabricio Werdum
#3 Cain Velasquez
#4 Alistair Overeem
#5 Josh Barnett
#6 Francis Ngannou
#7 Andrei Arlovski
#8 Derrick Lewis
#9 Travis Browne
#10 Brock Lesnar
#11 Mark Hunt
#12 Vitaly Minakov
#13 Alexander Volkov
#14 Roy Nelson
#13 Alexander Volkov
#14 Roy Nelson
#15 Stefan Struve
The following fighters were removed from this division's rankings due to inactivity:
Anthony Johnson on 3/23/2014
Junior Dos Santos 4/10/2017
Daniel Cormier on 10/19/2014
Ben Rothwell on 4/10/2017
Frank Mir on 3/19/2017
Light Heavyweight (205)
#1 Daniel Cormier
#2 Anthony Johnson
#3 Ryan Bader
#4 Phil Davis
#5 Glover Teixeira
#6 Alexander Gustafsson
#7 Liam McGeary
#8 Tito Ortiz
#9 Chael Sonnen
#10 Jimi Manuwa
#11 Volkan Oezdemir
#12 Ovince St Preux
#13 Mauricio Rua
#14 Antonio Rogerio Nogueira
#15 Anderson Silva
The following fighters were removed from this division's ranking due to inactivity:
Jon Jones on 4/23/2017
Vitor Belfort on 11/09/2014
Lyoto Machida on 8/03/2014
Rashad Evans on 4/16/2017
Dan Henderson on 5/24/2015
Kelly Anundson on 9/12/2015
Quinton Jackson on 5/17/2015
Middleweight (185)
#1 Michael Bisping
#2 Luke Rockhold
#3 Yoel Romero
#4 Robert Whittaker
#5 Ronaldo Souza
#6 Gegard Mousasi
#7 Chris Weidman
#8 Kelvin Gastelum
#9 Tim Kennedy
#10 Anderson Silva
#11 Derek Brunson
#12 Uriah Hall
#13 Vitor Belfort
#14 Eric Spicely
#15 Thiago Santos
The following fighters were removed from this division's rankings due to inactivity:
Chael Sonnen on 7/07/2013
Lyoto Machida on 6/27/2016
Cung Le on 8/23/2015
Rich Franklin on 6/23/2013
Roan Carneiro on 2/21/2017
Mark Munoz on 5/16/2016
Welterweight (170)
#1 Tyron Woodley
#2 Stephen Thompson
#3 Robbie Lawler
#4 Rory MacDonald
#5 Lorenz Larkin
#6 Neil Magny
#7 Kelvin Gastelum
#8 Johny Hendricks
#9 Demian Maia
#10 Carlos Condit
#11 Douglas Lima
#12 Andrey Koreshkov
#13 Jorge Masvidal
#14 Donald Cerrone
#15 Rick Story
The following fighters were removed from this division's rankings due to inactivity:
Georges St Pierre on 11/16/2014
Martin Kampmann on 8/28/2014
Nick Diaz on 3/16/2014
Ben Askren on 4/24/2016
Ben Henderson on 4/22/2017
Lightweight (155)
#1 Khabib Nurmagomedov
#2 Conor McGregor
#3 Eddie Alvarez
#4 Tony Ferguson
#5 Rafael Dos Anjos
#6 Edson Barboza
#7 Charles Oliveira
#8 Will Brooks
#9 Michael Chandler
#10 Ben Henderson
#11 Gilbert Melendez
#12 Beneil Dariush
#13 Michael Johnson
#14 Dustin Poirier
#15 Joe Duffy
(Alex Oliveira beat Brooks at welterweight therefore not ranked)
The following fighters were removed from this division's rankings due to inactivity:
Anthony Pettis on 4/23/2017
Donald Cerrone on 12/19/2016
Frankie Edgar on 8/11/2013
TJ Grant on 5/25/2014
Myles Jury on 1/03/2016
Mike Chiesa on 4/16/2017
Nate Diaz on 12/19/2016
Featherweight (145)
#1 Jose Aldo
#2 Frankie Edgar
#4 Ricardo Lamas
#5 Cub Swanson
#6 Anthony Pettis
#7 Charles Oliveira
#8 Renato Carneiro
#9 Jeremy Stephens
#10 Yair Rodriguez
#11 Andre Fili
#12 Hacran Dias
#13 Darren Elkins
#14 Chan Sung Jung
#15 Brian Ortega
The following fighters were removed from this division's rankings due to inactivity:
Conor McGregor on 12/12/2016
Chad Mendes on 12/11/2016
Nik Lentz on 5/30/2016
Iuri Alcantara on 6/23/2013
Kenny Florian on 10/08/2012
Dustin Poirier on 9/27/2015
Bantamweight (135)
#1 Cody Garbrandt
#2 Dominick Cruz
#3 TJ Dillashaw
#4 Raphael Assuncao
#5 Jimmie Rivera
#6 Urijah Faber
#7 Bryan Caraway
#8 Aljamain Sterling
#9 Johnny Eduardo
#10 John Lineker
#11 Michael McDonald
#12 John Dodson
#13 Eddie Wineland
#14 Takeya Mizugaki
#15 Thomas Almeida
The following fighters were removed from this division's rankings due to inactivity:
Renan Barao on 7/25/2016
Joseph Benavidez on 8/14/2012
Chris Cariaso on 2/25/2013
Flyweight (125)
#1 Demetrious Johnson
#2 Joseph Benavidez
#3 Kyoji Horiguchi
#4 Tyson Nam +12
#5 Yoni Sherbatov +11
#6 Ali Bagautinov -2
#7 Henry Cejudo -2
#8 Ray Borg -2
#9 Jussier Da Silva -2
#10 Matheus Nicolau -2
#11 Sergio Pettis -2
#12 John Moraga -2
#13 Wilson Reis -2
#14 Brandon Moreno -2
#15 Dustin Ortiz -2
The following fighters were removed from this division's rankings due to inactivity:
Ian McCall on 1/31/2016
John Dodson on 9/05/2016
Women's Bantamweight (135)
#1 Amanda Nunes
#2 Valentina Shevchenko
#4 Raquel Pennington
#5 Miesha Tate
#6 Holly Holm
#7 Ronda Rousey
#8 Cat Zingano
#9 Sara McMann
#10 Alexis Davis
#8 Cat Zingano
#9 Sara McMann
#10 Alexis Davis
#11 Sarah Kaufman
#12 Liz Carmouche
#13 Ketlen Vieira
#14 Ashlee Evans-Smith
#12 Liz Carmouche
#13 Ketlen Vieira
#14 Ashlee Evans-Smith
#15 Marion Reneau
The following fighters were removed from this division's rankings due to inactivity:
Jessica Rakoczy on 11/30/2014
Marloes Coenen on 7/30/2012
Kerry Vera on 11/20/2010
Women's Strawweight (115)
#1 Joanna Jedrzejczyk
#2 Claudia Gadelha
#3 Karolina Kowalkiewicz
#4 Justine Kish
#6 Carla Esparza
#7 Rose Namajunas
#4 Justine Kish
#5 Randa Markos
#6 Carla Esparza
#7 Rose Namajunas
#8 Jessica Andrade
#9 Viviane Pereira
#10 Valerie Letourneau
#11 Maryna Moroz
#12 Danielle Taylor
#13 Jessica Penne
#9 Viviane Pereira
#10 Valerie Letourneau
#11 Maryna Moroz
#12 Danielle Taylor
#13 Jessica Penne
#14 Joanne Calderwood
#15 Cortney Casey
#15 Cortney Casey
(Calderwood beat Letourneau at Flyweight therefore no movement occurred)
The following fighters were removed from this division's rankings due to inactivity:
Jessica Aguilar on 8/01/2016
