Heavyweight (265)
#1 Fabricio Werdum
#2 Cain Velasquez
#3 Andrei Arlovski +1
#4 Travis Browne +1
#5 Josh Barnett +1
#6 Frank Mir +1
#7 Stipe Miocic +1
#8 Mark Hunt +1
#10 Ben Rothwell +1
#11 Alistair Overeem +1
#12 Roy Nelson +1
#14 Stefan Struve +1
#15 Antonio Rodrigo Nogueira +1
The following fighters were removed from this division's rankings due to inactivity:
Junior Dos Santos on 12/13/2015
Daniel Cormier on 10/19/2014
Anthony Johnson on 3/23/2014
Dan Henderson on 7/30/2012
Fedor Emelianenko on 6/21/2013
Brock Lesnar on 12/30/2012
Shane Carwin on 6/11/2011
Oleksiy Oliynyk on 11/22/2015
Light Heavyweight (205)
#1 Jon Jones
#2 Daniel Cormier
#3 Anthony Johnson
#4 Ryan Bader
#5 Phil Davis
#6 Rashad Evans
#7 Alexander Gustafsson
#8 Glover Teixeira
#9 Ovince St Preux
#10 Mauricio Rua
#11 Antonio Rogerio Nogueira
The following fighters were removed from this division's ranking due to inactivity:
Vitor Belfort on 11/09/2014
Lyoto Machida on 8/03/2014
Dan Henderson on 5/24/2015
Chael Sonnen on 11/16/2014
Quinton Jackson on 5/17/2015
Anderson Silva on 10/13/2013
Forrest Griffin on 7/07/2013
Middleweight (185)
#1 Luke Rockhold +3
#2 Chris Weidman -1
#3 Anderson Silva -1
#4 Vitor Belfort -1
#5 Yoel Romero
#6 Lyoto Machida
#7 Ronaldo Souza
#8 Kelvin Gastelum
#9 Robert Whittaker
#10 Uriah Hall
#11 Gegard Mousasi
#12 Michael Bisping
#13 Roan Carneiro
#14 Mark Munoz
#15 CB Dollaway
The following fighters were removed from this division's rankings due to inactivity:
Chael Sonnen on 7/07/2013
Tim Kennedy on 9/27/2015
Cung Le on 8/23/2015
Rich Franklin on 6/23/2013
Welterweight (170)
#1 Robbie Lawler
#2 Johny Hendricks
#3 Rory MacDonald
#4 Tyron Woodley
#5 Carlos Condit
#6 Neil Magny
#7 Kelvin Gastelum
#8 Stephen Thompson
#9 Jake Ellenberger
#10 Hector Lombard
#11 Rousimar Palhares
#12 Jake Shields
#13 Demian Maia
#14 Dong Hyun Kim
#15 Matt Brown
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
Lightweight (155)
#1 Rafael Dos Anjos
#2 Anthony Pettis
#3 Donald Cerrone
#5 Eddie Alvarez
#6 Gilbert Melendez
#7 Shinya Aoki
#8 Myles Jury
#10 Michael Johnson
#11 Tony Ferguson +1
#12 Edson Barboza -1
#13 Josh Thomson
#14 Al Iaquinta +1
#15 Evan Dunham +1
The following fighters were removed from this division's rankings due to inactivity:#15 Evan Dunham +1
Khabib Nurmagomedov on 4/19/2015
Frankie Edgar on 8/11/2013
TJ Grant on 5/25/2014
Tatsuya Kawajiri on 7/26/2012
Bobby Green on 11/22/2015
Nate Diaz on 12/13/2015
BJ Penn on 8/28/2011
Diego Sanchez on 6/07/2015
Sean Sherk on 9/25/2011
Featherweight (145)
#1 Conor McGregor
#2 Jose Aldo +14
#3 Frankie Edgar +1
#5 Ricardo Lamas -2
#6 Max Holloway -1
#7 Cub Swanson -1
#8 Charles Oliveira -1
#9 Jeremy Stephens -1
#10 Nik Lentz -1
#11 Hacran Dias -1
#12 Darren Elkins -1
#13 Diego Brandao -1
#14 Dennis Bermudez -1
#15 Brian Ortega -1
The following fighters were removed from this division's rankings due to inactivity:
Iuri Alcantara on 6/23/2013
Kenny Florian on 10/08/2012
Chan Sung Jung on 8/03/2014
Dustin Poirier on 9/27/2015
Bantamweight (135)
#1 TJ Dillashaw
#2 Renan Barao
#3 Urijah Faber
#4 Aljamain Sterling
#5 Johnny Eduardo +11
#6 Takeya Mizugaki -1
#7 Bryan Caraway -1
#8 Eddie Wineland -1
#9 John Lineker -1
#10 Francisco Rivera -1
#11 George Roop -1
#12 Marlon Moraes -1
#13 Thomas Almeida -1
#14 Brad Pickett -1
#15 Felipe Arantes -1
The following fighters were removed from this division's rankings due to inactivity:
Dominick Cruz on 9/27/2015
Raphael Assuncao on 10/04/2015
Joseph Benavidez on 8/14/2012
Michael McDonald on 12/13/2014
Chris Cariaso on 2/25/2013
Rob Font on 7/05/2015
Brian Bowles on 5/25/2014
Demetrious Johnson on 10/01/2012
Miguel Torres on 11/03/2013
Will Ribeiro on 12/03/2009
Flyweight (125)
#1 Demetrious Johnson
#2 Joseph Benavidez
#3 Ian McCall
#4 Ali Bagautinov
#5 John Dodson
#6 Zach Makovsky
#7 Tim Elliott
#8 Kyoji Horiguchi
#9 Louis Gaudinot
#10 Kairat Akhmetov
#11 Adriano Moraes
#12 Henry Cejudo
#13 Jussier Da Silva
#14 John Moraga
#15 Dustin Ortiz
John Lineker on 7/16/2015
Yasuhiro Urushitani on 3/14/2015
Women's Bantamweight (135)
#1 Holly Holm
#2 Ronda Rousey
#2 Ronda Rousey
#3 Cat Zingano
#4 Miesha Tate
#5 Alexis Davis
#6 Sarah Kaufman
#7 Liz Carmouche
#7 Liz Carmouche
#8 Amanda Nunes
#9 Sara McMann
#10 Julianna Pena
#10 Julianna Pena
#11 Jessica Eye
#12 Leslie Smith
#13 Marion Reneau
#13 Marion Reneau
#14 Raquel Pennington
#15 Jessica Andrade
The following fighters were removed from this division's rankings due to inactivity:
Marloes Coenen on 7/30/2012
Kerry Vera on 11/20/2010
Jessica Rakoczy on 11/30/2014
Women's Strawweight (115)
#1 Joanna Jedrzejczyk
#2 Claudia Gadelha
#3 Jessica Aguilar
#4 Carla Esparza
#5 Rose Namajunas
#6 Jessica Penne
#7 Valerie Letourneau
#8 Maryna Moroz
#9 Joanne Calderwood
#10 Livia Renata Souza
#11 DeAnna Bennett
#12 Katja KanKaanpaa
#12 Katja KanKaanpaa
#13 Randa Markos
#14 Aisling Daly
#15 Tecia Torres
The following fighters were removed from this division's rankings due to inactivity:
Justine Kish on 1/24/2015
Stephanie Eggink on 9/06/2015
Stephanie Eggink on 9/06/2015