Top 10 for March, 2003
 

Heavyweight

1. Rodrigo "Minotauro" Nogueira Brazil (650)
2. Josh Barnett USA (538)
3. Emelianenko Fedor Russia (532)
4. Tim Sylvia USA (449)
5. Ricco Rodriguez USA (391)
6. Heath Herring USA (326)
7. Randy Couture USA (261)
8. Gan McGee USA (201)
9. Bob Sapp USA (131)
10. Vladimir Matyushenko Brazil (67)

Light Heavyweight

1. Vanderlei Silva Brazil (562)
2. Tito Ortiz USA (559)
3. Chuck Liddell USA (554)
4. Mirko "CroCop" Filipovic Croatia (437)
5. Ricardo Arona Brazil (435)
6. Kevin Randleman USA (325)
7. Murilo "Ninja" Rua Brazil (249)
8. Vitor Belfort Brazil (138)
6. Dan Henderson USA (136)
10. Quinton "Rampage" Jackson USA (135)

Middleweight
1. Murilo Bustamante Brazil (650)
2. Anderson Silva Brazil (582)
3. Matt Lindland USA (525)
4. Kazushi Sakuraba Japan (438)
5. Paulo Filho Brazil (436)
6. Phil Baroni USA (325)
7. Ivan Salaverry USA (262)
8. Amar Suloev Armenia (178)
9. David Loiseau Canada (154)
10. Jose "Pele" Landi-Jons Brazil (59)

Welterweight
1. Matt Hughes USA (650)
2. Carlos Newton Canada (584)
3. Frank Trigg USA (479)
4. Sean Sherk USA (475)
5. Hayato Sakurai Japan (449)
6. Gil Castillo USA (316)
7. Nathan Marquardt USA (261)
8. Matt Hume USA (196)
9. Kiuma Kunioku Japan (121)
10. Robbie Lawler USA (107)

Lightweight
1. Takanori Gomi Japan (649)
2. Jens Pulver USA (574)
3. B.J. Penn USA (538)
4. Kaoru Uno Japan (454)
5. Din Thomas USA (392)
6. D. Mishima Japan (322)
7. Vitor "Shaolin" Ribeiro Brazil (276)
8. Duane Ludwig USA (191)
9. Javier Vasquez USA (132)
10. Joachim Hansen Norway (62)

Featherweight
1. Alexandre "Pequeno" Nogueira Brazil (634)
2. Joao Roque Brazil (605)
3. Stephen Palling USA (526)
4. Hiroyuki Abe Japan (459)
5. Norifumi "Kid" Yamamoto Japan (405)
6. Jeff Curran USA (334)
7. Hermes Franca Brazil (262)
8. Naoya Uematsu Japan (174)
9. Katsuya Toita Japan (126)
10. Tetsuo Katsuta Japan (62)