Heavyweight (265)
#1 Fabricio Werdum
#2 Cain Velasquez
#3 Junior Dos Santos
#4 Andrei Arlovski
#5 Travis Browne
#6 Josh Barnett
#7 Frank Mir
#8 Stipe Miocic
#9 Mark Hunt
#11 Ben Rothwell
#12 Alistair Overeem
#13 Roy Nelson
#15 Antonio Rodrigo Nogueira
The following fighters were removed from this division's rankings due to inactivity:
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
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 Chris Weidman
#2 Anderson Silva
#3 Vitor Belfort
#4 Luke Rockhold
#5 Yoel Romero
#6 Lyoto Machida
#7 Ronaldo Souza
#8 Kelvin Gastelum
#9 Uriah Hall
#10 Gegard Mousasi
#11 Michael Bisping
#12 Roan Carneiro
#13 Mark Munoz
#14 CB Dollaway
#15 Thales Leites
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 Kelvin Gastelum
#7 Stephen Thompson
#8 Jake Ellenberger
#9 Hector Lombard
#10 Rousimar Palhares
#11 Jake Shields
#12 Demian Maia
#13 Dong Hyun Kim
#14 Matt Brown
#15 Ben Askren
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 Edson Barboza
#12 Bobby Green
#13 Tony Ferguson
#14 Josh Thomson
#15 Nate Diaz
The following fighters were removed from this division's rankings due to inactivity:Khabib Nurmagomedov on 4/19/2015
Frankie Edgar on 8/11/2013
TJ Grant on 5/25/2014
Tatsuya Kawajiri on 7/26/2012
Featherweight (145)
#1 Jose Aldo
#2 Conor McGregor
#3 Chad Mendes
#4 Ricardo Lamas
#5 Frankie Edgar
#6 Max Holloway
#7 Cub Swanson
#8 Charles Oliveira
#9 Jeremy Stephens
#10 Nik Lentz
#11 Hacran Dias
#12 Darren Elkins
#13 Diego Brandao
#14 Dennis Bermudez
#15 Clay Guida
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 Takeya Mizugaki
#6 Bryan Caraway
#7 Eddie Wineland
#8 John Lineker
#9 Francisco Rivera
#10 George Roop
#11 Marlon Moraes
#12 Thomas Almeida
#13 Brad Pickett
#14 Felipe Arantes
#15 Yves Jabouin
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
Johnny Eduardo on 5/10/2015
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 Adriano Moraes
#11 Jussier Da Silva
#12 John Moraga
#13 Dustin Ortiz
#14 Justin Scoggins
#15 Ray Borg
John Lineker on 7/16/2015
Yasuhiro Urushitani on 3/14/2015
Will Campuzano on 3/15/2015
Women's Bantamweight (135)
#1 Ronda Rousey
#2 Cat Zingano
#3 Miesha Tate
#4 Alexis Davis
#5 Sarah Kaufman
#6 Liz Carmouche
#6 Liz Carmouche
#7 Amanda Nunes
#8 Sara McMann
#9 Julianna Pena
#9 Julianna Pena
#10 Jessica Eye
#11 Leslie Smith
#12 Holly Holm
#13 Marion Reneau
#12 Holly Holm
#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