Heavyweight (265)
#1 Fabricio Werdum
#2 Cain Velasquez
#3 Junior Dos Santos
#4 Andrei Arlovski
#5 Travis Browne
#6 Frank Mir
#7 Stipe Miocic
#8 Mark Hunt
#10 Ben Rothwell
#11 Alistair Overeem
#12 Roy Nelson
#14 Antonio Rodrigo Nogueira +1
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
Josh Barnett on 12/28/2014
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 Daniel Cormier
#3 Anthony Johnson
#4 Ryan Bader
#5 Phil Davis
#6 Alexander Gustafsson
#7 Glover Teixeira
#8 Ovince St Preux
#9 Mauricio Rua
#10 Antonio Rogerio Nogueira +1
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
Rashad Evans on 11/16/2014
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 Gegard Mousasi
#9 Tim Kennedy
#10 Michael Bisping
#11 Cung Le
#12 Roan Carneiro
#13 Mark Munoz
#14 CB Dollaway
The following fighters were removed from this division's rankings due to inactivity:
Chael Sonnen on 7/07/2013
Rich Franklin on 11/10/2013
Welterweight (170)
#1 Robbie Lawler
#3 Rory MacDonald
#4 Tyron Woodley
#5 Carlos Condit
#6 Kelvin Gastelum
#7 Stephen Thompson
#8 Jake Ellenberger
#9 Hector Lombard
#10 Rousimar Palhares +6
#11 Jake Shields -1
#12 Demian Maia -1
#13 Dong Hyun Kim -1
#14 Matt Brown -1
#15 Ben Askren -1
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 Edson Barboza
#11 Bobby Green
#12 Tony Ferguson
#13 Josh Thomson
#14 Nate Diaz
#15 Al Iaquinta
The following fighters were removed from this division's rankings due to inactivity:#15 Al Iaquinta
Khabib Nurmagomedov on 4/19/2015
Frankie Edgar on 8/11/2013
TJ Grant on 5/25/2014
Tatsuya Kawajiri on 7/26/2012
BJ Penn on 8/28/2011
Diego Sanchez on 6/07/2015
Featherweight (145)
#1 Jose Aldo
#2 Conor McGregor
#3 Chad Mendes
#4 Ricardo Lamas
#5 Frankie Edgar
#6 Max Holloway
#8 Charles Oliveira
#9 Jeremy Stephens
#10 Nik Lentz
#11 Hacran Dias
#12 Darren Elkins
#13 Dustin Poirier
#14 Diego Brandao
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
Chan Sung Jung on 8/03/2014
Bantamweight (135)
#1 Dominick Cruz
#2 Raphael Assuncao
#3 TJ Dillashaw
#4 Renan Barao
#5 Urijah Faber
#6 Aljamain Sterling
#8 Bryan Caraway
#9 Eddie Wineland
#10 Francisco Rivera
#11 Marlon Moraes
#12 Thomas Almeida
#13 Brad Pickett
#14 Yves Jabouin
#15 Ricky Simon +1
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
George Roop 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
Mike Easton on 6/14/2015
John Dodson on 12/03/2012
Flyweight (125)
#1 Demetrious Johnson
#2 Joseph Benavidez
#3 Ian McCall
#4 John Dodson
#5 Zach Makovsky
#6 Tim Elliott
#7 Kyoji Horiguchi
#8 Louis Gaudinot
#9 Adriano Moraes
#10 Jussier Da Silva
#11 John Moraga
#12 Dustin Ortiz
#13 Justin Scoggins
#14 Ray Borg
#15 Chris Kelades
Ali Bagautinov on 6/14/2015
John Lineker on 7/16/2015
Yasuhiro Urushitani on 3/14/2015
Will Campuzano on 3/15/2015