Official December MMA Rankings

Updated as of: 1/13/13

Heavyweight: 1) Cain Velazquez
2) Junior dos Santos
3) Alistair Overeem
4) Fabricio Werdum
5) Daniel Cormier
6) Frank Mir
7) Antonio Silva
8) Stefan Struve
9) Antonio Rodrigo Nogueira
10) Josh Barnett

Contenders: Mark Hunt, Roy Nelson, Cheick Kongo, Mike Russow, Gabriel Gonzaga.
Name(s) to Watch: Stipe Miocic, Travis Browne, Alexander Volkov

Light Heavyweight: 1) Jon Jones
2) Rashad Evans
3) Dan Henderson
4) Lyoto Machida
5) Alexander Gustafsson
6) Shogun Rua
7) Phil Davis
8) Ryan Bader
9) Antonio Rogerio Nogueira
10) Rampage Jackson

Contenders: Gegard Mousasi, Glover Teixeira, Anthony Johnson, Forrest Griffin.
Name(s) to Watch: James Te Huna

Middleweight: 1) Anderson Silva
2) Chris Weidman
3) Vitor Belfort
4) Chael Sonnen
5) Michael Bisping

6) Luke Rockhold

7) Mark Munoz
8) Yushin Okami
9) Brian Stann
10) Alan Belcher

Contenders: Costa Philippou, Tim Boetsch, Hector Lombard, Jake Shields, Cung Le, Ronaldo Souza.
Name(s) to Watch: Ronny Markes

Welterweight: 1) Georges St. Pierre
2) Johny Hendricks
3) Carlos Condit
4) Nick Diaz
5) Rory MacDonald
6) Jon Fitch
7) Martin Kampmann
8) Jake Ellenberger
9) Tarec Saffiedine
10) Ben Askren

Contenders: Demian Maia, Nate Marquardt, Josh Koscheck, Mike Pierce, Matt Brown.
Name(s) to Watch: Karl Amoussou, Tarec Saffiedine, Erick Silva.

Lightweight: 1) Ben Henderson
2) Frankie Edgar
3) Gray Maynard
4) Nate Diaz
5) Gilbert Melendez
6) Donald Cerrone
7) Anthony Pettis
8) Jim Miller
9) Michael Chandler
10) Clay Guida

Contenders: Joe Lauzon, Jamie Varner, Rafael dos Anjos, Eddie Alvarez, TJ Grant, Matt Wiman.
Name(s) to Watch: Tim Means, Khabib Nurmagomedov, Marcin Held.

Featherweight: 1) Jose Aldo
2) Chad Mendes
3) Pat Curran
4) Ricardo Lamas
5) Chan Sung Jung
6) Dennis Siver
7) Hatsu Hioki
8) Cub Swanson
9) Nik Lentz
10) Erik Koch

Contenders: Dustin Poirier, Hacran Dias, Tatsuya Kawajiri, Daniel Straus, Darren Elkins.
Name(s) to Watch: Marcus Brimage, Dennis Bermudez, Max Holloway.

Bantamweight: 1) Dominick Cruz
2) Renan Barao
3) Urijah Faber
4) Michael McDonald
5) Eddie Wineland
6) Brian Bowles
7) Brad Pickett
8) Bibiano Fernandes
9) Scott Jorgensen
10) Raphael Assuncao

Contenders: Tyson Nam, Mike Easton, Eduardo Dantas, Marcos Galvao, Takeya Mizugaki, Yuri Alcantara.
Name(s) to Watch: Erik Perez, Francisco Rivera, Alex Caceres.

Flyweight: 1) Demetrious Johnson
2) Joseph Benavidez
3) John Dodson
4) Ian McCall
5) Darrel Montague
6) John Moraga
7) Jussier Formiga
8) John Lineker
9) Chris Cariaso
10) Darren Uyenoyama

Contenders: Louis Gaudinot, Mitsuhisa Sunabe, Mamoru Yamaguchi, Will Campuano, Yasuhiro Urushitani, Kentaro Watanabe.
Name(s) to Watch: Sean Santella, Josh Sampo, Tim Elliot, Sergio Pettis.

Women's Featherweight: 1) Cris Cyborg
2) Marloes Coenen
3) Milana Dudieva
4) Germaine de Randamie
5) Ediane Gomes
6) Elaina Maxwell
7) Julia Budd
8) Yana Kunitskaya
9) Romy Ruyssen
10) Hiroko Yamanaka

Contenders: Lauren Taylor, Ashley Sanchez, Fiona Maxwell.
Name(s) to Watch: Randi Miller, Veronica Rothenhausler.

Women's Bantamweight: 1) Ronda Rousey
2) Miesha Tate
3) Sara McMann
4) Alexis Davis
5) Sarah Kaufman
6) Liz Carmouche
7) Shayna Baszler
8) Sarah D’Alelio
9) Cat Zingano
10) Amanda Nunes

Contenders: Hitomi Akano, Leslie Smith, Shana Nelson.
Name(s) to Watch: Jessamyn Duke, Holly Holm

Women's Flyweight: 1) Rosi Sexton
2) Jessica Eye
3) Vanessa Porto
4) Barb Honchak
5) Zoila Gurgel
6) Sheila Gaff
7) Michelle Ould
8) Tara LaRosa
9) Munah Holland
10) Tonya Evinger

Contenders: Reyna Cordoba, Takayo Hashi, Kalindra Carvalho Faria.
Name(s) to Watch: Jocelyn Lybarger, Sarah Maloy.

Women's Strawweight: 1) Jessica Aguilar
2) Megumi Fujii
3) Carla Esparza
4) Ayaka Hamasaki
5) Katja Kankaanpaa
6) Joanne Calderwood
7) Seo Hee Ham
8) Claudia Gadelha
9) Felice Herrig
10) Aisling Daly

Contenders: Mei Yamaguchi, Bec Hyatt, Yuki Tsuji, Ashley Cummins, Patricia Vidonic.
Name(s) to Watch: Tecia Torres.

Women's Atomweight: 1) Jessica Penne
2) Naho Sugiyama
3) Kikuyo Ishiwaka
4) Michelle Waterson
5) Cassie Rodish
6) Yasuko Tamada
7) Lisa Ellis
8) Lacey Schuckman
9) Misaki Takimoto
10) Nicdali Rivera-Calonic

Contenders: Satomi Akano, Stephanie Frausto Liz McCarthy, Amy Davis.
Name(s) to Watch: Laura Marcusse.

Let us know what you guys think. Tell us in the comments or on Twitter @Champion_Rounds.