Updated December 20, 2010 after "WEC 53: Henderson vs. Pettis":
Heavyweight
- Cain Velasquez (UFC Champion)
- Fedor Emelianenko
- Fabricio Werdum
- Junior Dos Santos
- Alistair Overeem (Strikeforce Champion)
- Brock Lesnar
- Antonio Silva
- Shane Carwin
- Josh Barnett
- Frank Mir
Next five: Antonio Rodrigo Nogueira, Brendan Schaub, Brett Rogers,
Roy Nelson, Stefan Struve
Light Heavyweight
- Mauricio Rua (UFC Champion)
- Rashad Evans
- Quinton Jackson
- Jon Jones
- Forrest Griffin
- Ryan Bader
- Lyoto Machida
- Antonio Rogerio Nogueira
- Gegard Mousasi (DREAM Champion)
- Rafael Cavalcante
(Strikeforce Champion)
Next five: Dan Henderson, Thiago Silva, Muhammad Lawal, Rich Franklin,
Phil Davis
Middleweight
- Anderson Silva (UFC Champion)
- Chael Sonnen
- Vitor Belfort
- Yushin Okami
- Ronaldo Souza (Strikeforce Champion)
- Jorge Santiago (Sengoku Champion)
- Hector Lombard (Bellator Champion)
- Demian Maia
- Nate Marquardt
- Wanderlei Silva
Next five: Robbie Lawler, Chris Leben, Michael Bisping, Alan
Belcher, Mamed Khalidov
Welterweight
- Georges St-Pierre (UFC Champion)
- Jake Shields
- Jon Fitch
- B.J. Penn
- Nick Diaz (Strikeforce Champion)
- Carlos Condit
- Paul Daley
- Thiago Alves
- Josh Koscheck
- Ben Askren
(Bellator Champion)
Next five: Dan Hardy, Martin Kampmann, Dong Hyun Kim, Diego
Sanchez, Rick Story
Lightweight
- Frankie Edgar (UFC Champion)
- Gilbert Melendez (Strikeforce Champion)
- Eddie Alvarez (Bellator Champion)
- Gray Maynard
- Shinya Aoki (DREAM Champion)
- Jim Miller
- George Sotiropoulos
- Sean Sherk
- Kenny Florian
- Tatsuya Kawajiri
Next five: Evan Dunham, Takanori Gomi, Josh Thomson, Dennis Siver,
Anthony Pettis
Featherweight
- Jose Aldo (UFC Champion)
- Marlon Sandro (Sengoku Champion)
- Bibiano Fernanades (DREAM Champion)
- Josh Grispi
- Diego Nunes
- Michihiro Omigawa
- Mike Brown
- Hatsu Hioki
- Joe Warren (Bellator Champion)
- Chad Mendes
Next five: Manny Gamburyan, Masanori Kanehara, Mark Hominick, L.C.
Davis, Yuji Hoshino
Bantamweight
- Dominick Cruz (UFC Champion)
- Urijah Faber
- Brian Bowles
- Scott Jorgensen
- Joseph Benavidez
- Miguel Torres
- Masakatsu Ueda (Shooto Champion)
- Masakazu Imanari (DEEP Champion)
- Zach Makovsky (Bellator Champion)
- Wagnney Fabiano
Next five: Eddie Wineland, Takeya
Mizugaki, Demetrious Johnson, Damacio Page, Antonio Banuelos
Flyweight
- Jussier Da Silva (Shooto South America Champion)
- Yasuhiro Urushitani (Shooto Champion)
- Mamoru Yamaguchi (King of the Cage Champion)
- Rambaa Somdet (Shooto Champion)
- Alexis Vila
- Yuki Shojo
- Kiyotaka Shimizu (Pancrase Champion)
- Ryuichi Miki
- Ryosuke Tanuma (ZST Champion)
- John Dodson
Next five: Ulysses
Gomez, Fumihiro Kitahara, Mitsuhisa Sunabe, Louis Gaudinot, Pat Runez