Top 10 for January, 2003
 

Heavyweight

1. Rodrigo "Minotauro" Nogueira Brazil (650)
2. Josh Barnett USA (554)
3. Ricco Rodriguez USA (549)
4. Emelianenko Fedor Russia (494)
5. Heath Herring USA (380)
6. Randy Couture USA (332)
7. Tom Erikson USA (231)
8. Pedro Rizzo Brazil (139)
9. Bob Sapp USA (138)
10. Gan McGee USA (134)

Light Heavyweight

1. Vanderlei Silva Brazil (562)
2. Tito Ortiz USA (561)
3. Chuck Liddell USA (559)
4. Ricardo Arona Brazil (431)
5. Mirko "CroCop" Filipovic Croatia (430)
6. Kevin Randleman USA (322)
7. Murilo "Ninja" Rua Brazil (259)
8. Vitor Belfort Brazil (136)
6. Dan Henderson USA (135)
10. Quinton "Rampage" Jackson USA (132)

Middleweight
1. Murilo Bustamante Brazil (650)
2. Anderson Silva Brazil (575)
3. Matt Lindland USA (524)
4. Kazushi Sakuraba Japan (434)
5. Paulo Filho Brazil (432)
6. Phil Baroni USA (322)
7. Ivan Salaverry USA (264)
8. Amar Suloev Armenia (191)
9. Jose "Pele" Landi-Jons Brazil (109)
10. David Loiseau Canada (101)

Welterweight
1. Matt Hughes USA (650)
2. Carlos Newton Canada (582)
3. Frank Trigg USA (495)
4. Sean Sherk USA (478)
5. Hayato Sakurai Japan (391)
6. Gil Castillo USA (331)
7. Nathan Marquardt USA (261)
8. Kiuma Kunioku Japan (192)
9. Tetsuji Kato Japan (124)
10. Robbie Lawler USA (102)

Lightweight
1. Takanori Gomi Japan (639)
2. Jens Pulver USA (602)
3. B.J. Penn USA (549)
4. Kaoru Uno Japan (449)
5. Din Thomas USA (390)
6. D. Mishima Japan (301)
7. Vitor "Shaolin" Ribeiro Brazil (273)
8. Duane Ludwig USA (175)
9. Javier Vasquez USA (164)
10. Rumina Sato Japan (74)

Featherweight
1. Alexandre "Pequeno" Nogueira Brazil (648)
2. Joao Roque Brazil (592)
3. Stephen Palling USA (522)
4. Hiroyuki Abe Japan (461)
5. Norifumi "Kid" Yamamoto Japan (379)
6. Jeff Curran USA (278)
7. Hermes Franca Brazil (78)
8. Naoya Uematsu Japan (292)
9. Tetsuo Katsuta Japan (194)
10. Katsuya Toita Japan (116)