Heavyweight (265)
#1 Junior Dos Santos
#2 Fabricio Werdum
#3 Travis Browne
#4 Andrei Arlovski
#5 Frank Mir
#6 Mark Hunt
#8 Ben Rothwell
#9 Alistair Overeem
#10 Stipe Miocic
#11 Roy Nelson
#12 Antonio Rodrigo Nogueira
The following fighters were removed from this division's rankings due to inactivity:
Cain Velasquez on 10/19/2014
Daniel Cormier on 10/19/2014
Josh Barnett on 12/28/2014
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 6/11/2012
Randy Couture on 8/28/2011
Light Heavyweight (205)
#1 Jon Jones
#2 Anthony Johnson
#3 Ryan Bader
#6 Dan Henderson
#7 Alexander Gustafsson
#8 Glover Teixeira
#10 Mauricio Rua
#11 Quinton Jackson
#12 Antonio Rogerio Nogueira
The following fighters were removed from this division's rankings due to inactivity:
Vitor Belfort on 11/09/2014
Lyoto Machida on 8/03/2014
Rashad Evans on 11/16/2014
Chael Sonnen on 11/16/2014
Anderson Silva on 10/13/2013
Forrest Griffin on 7/07/2013
Middleweight (185)
#1 Chris Weidman
#2 Anderson Silva
#3 Luke Rockhold
#4 Lyoto Machida
#5 Ronaldo Souza
#6 Gegard Mousasi
#7 Yoel Romero
#8 Tim Kennedy
#9 Michael Bisping
#10 Cung Le
#11 Roan Carneiro
#12 Mark Munoz
#13 CB Dollaway
#15 Francis Carmont
The following fighters were removed from this division's rankings due to inactivity:
Chael Sonnen on 7/07/2013
Vitor Belfort on 5/18/2014
Rich Franklin on 11/10/2013
Welterweight (170)
#1 Robbie Lawler
#3 Rory MacDonald
#4 Tyron Woodley
#5 Kelvin Gastelum +1
#6 Jake Ellenberger +1
#7 Hector Lombard +1
#8 Jake Shields +1
#9 Demian Maia +1
#10 Dong Hyun Kim +1
#11 Matt Brown +1
#12 Ben Askren +1
#13 Douglas Lima +1
#14 Rousimar Palhares +1
#15 Steve Carl +1
Georges St. Pierre on 11/16/2014
Carlos Condit on 3/14/2015
Martin Kampmann on 8/28/2014
Nick Diaz on 3/16/2014
Lightweight (155)
#1 Khabib Nurmagomedov +1
#2 Rafael Dos Anjos +1
#3 Anthony Pettis -2
#4 Donald Cerrone
#6 Gilbert Melendez
#7 Eddie Alvarez
#8 Shinya Aoki
#9 Myles Jury
#11 Edson Barboza
#12 Bobby Green
#13 Josh Thomson
#14 Nate Diaz
#15 Diego Sanchez
The following fighters were removed from this division's rankings due to inactivity:#15 Diego Sanchez
Frankie Edgar on 8/11/2013
TJ Grant on 5/25/2014
Tatsuya Kawajiri on 7/26/2012
BJ Penn on 8/28/2011
Featherweight (145)
#1 Jose Aldo
#2 Chad Mendes
#3 Ricardo Lamas
#4 Frankie Edgar
#5 Cub Swanson
#6 Charles Oliveira
#7 Jeremy Stephens
#8 Nik Lentz
#9 Hacran Dias
#10 Darren Elkins
#11 Conor McGregor
#12 Dennis Siver
#13 Patricio Freire
#15 Pat Curran
The following fighters were removed from this division's rankings due to inactivity:
Yuri Alcantara on 6/23/2013
Kenny Florian on 10/08/2012
Bantamweight (135)
#1 Dominick Cruz
#2 Raphael Assuncao
#3 TJ Dillashaw
#4 Renan Barao
#5 Urijah Faber
#6 Johnny Eduardo
#7 Eddie Wineland
#8 Takeya Mizugaki
#9 Francisco Rivera
#10 Rob Font
#11 George Roop
#12 Marlon Moraes
#13 Yves Jabouin
#14 Mike Easton
#15 Aljamain Sterling
Joseph Benavidez on 8/14/2012
Michael McDonald on 12/13/2014
Chris Cariaso on 2/25/2013
Brian Bowles on 5/25/2014
Demetrious Johnson on 10/01/2012
Miguel Torres on 11/03/2013
Will Ribeiro on 12/03/2009
Brad Pickett on 8/17/2014
John Dodson on 12/03/2012
Flyweight (125)
#1 Demetrious Johnson
#2 Joseph Benavidez
#3 Ian McCall
#4 Ali Bagautinov
#5 Zach Makovsky
#6 Tim Elliott
#7 Kyoji Horiguchi
#8 Louis Gaudinot
#9 John Lineker
#10 Adriano Moraes
#11 John Dodson +1
#12 Jussier Da Silva +1
#13 John Moraga +1
#14 Dustin Ortiz +1
#15 Justin Scoggins +1
The following fighters were removed from this division's rankings due to inactivity:
Yasuhiro Urushitani on 3/14/2015