Carlos Rios has 11 losses against 10 opponents on his boxing record. For a list of Rios's best fights, refer to "Best fights of Carlos Rios".
On April 17, 2004 Carlos Rios faced off against Fabio Daniel Oliva at age 33. He was coming in with a record of 52-11-3 (33). Rios lost the fight via 2nd-round KO.
On December 5, 2003 Carlos Rios faced off against Lovemore Ndou in a super-lightweight bout at age 32. He was coming in with a record of 52-10-3 (33), and Ndou was 32 years old and with a record of 35-5-1 (21). Rios lost the fight via 5th-round KO.
On October 26, 2002 Carlos Rios faced off against Jorge Rodrigo Barrios in a super-featherweight bout at age 31. He was coming in with a record of 51-9-2 (33). Rios lost the fight via 6-round technical decision.
On February 9, 2002 Carlos Rios faced off against Jose Pablo Estrella at age 30. He was coming in with a record of 50-8-2 (32). Rios lost the fight via 10-round split decision.
On July 25, 2001 Carlos Rios faced off against Phillip Ndou in a super-featherweight bout at age 30. He was coming in with a record of 50-7-2 (32), and Ndou was 24 years old and with a record of 23-1 (23). Rios lost the fight via 5th-round KO.
On December 2, 2000 Carlos Rios faced off against Jose Pablo Estrella at age 29. He was coming in with a record of 49-6-2 (31). Rios lost the fight via 10-round unanimous decision.
On September 23, 2000 Carlos Rios fought Acelino Freitas in a super-featherweight world-title fight for Freitas' WBO title. Rios was 29 years old and with a record of 49-5-2 (31), and Freitas was 25 years old and with a record of 26-0 (26). Rios lost the fight via 9th-round TKO.
On March 5, 2000 Carlos Rios faced off against Robbie Peden in a super-featherweight bout at age 28. He was coming in with a record of 48-4-2 (31). Rios lost the fight via 12-round split decision.
On February 17, 1999 Carlos Rios fought Floyd Mayweather Jr. in a super-featherweight world-title fight for Mayweather Jr.'s WBC title. Rios was 27 years old and with a record of 44-3-1 (30), and Mayweather Jr. was 21 years old and with a record of 19-0 (15). Rios lost the fight via 12-round unanimous decision.
On September 12, 1998 Carlos Rios faced off against Cesar Soto at age 27. He was coming in with a record of 43-2-1 (30). Rios lost the fight via 10-round unanimous decision.
On December 6, 1997 Carlos Rios fought Luisito Espinosa in a featherweight world-title fight for Espinosa's WBC title. Rios was 26 years old and with a record of 39-1-1 (30), and Espinosa was 30 years old and with a record of 41-7 (21). Rios lost the fight via 6th-round TKO.
