Luis Collazo has nine losses against nine opponents on his boxing record. For a list of Collazo's best fights, refer to "Best fights of Luis Collazo".
On April 19, 2023 Luis Collazo faced off against Angel Ruiz Astorga at age 41. He was coming in with a record of 39-9 (20). Collazo lost the fight via 6th-round KO.
On October 18, 2019 Luis Collazo faced off against Kudratillo Abdukakhorov at age 38. He was coming in with a record of 39-8 (20), and Abdukakhorov was 26 years old and with a record of 16-0 (9). Collazo lost the fight via 10-round technical decision.
On July 11, 2015 Luis Collazo fought Keith Thurman in a welterweight world-title fight for Thurman's WBA (Regular) title. Collazo was 34 years old and with a record of 36-7 (19), and Thurman was 26 years old and with a record of 25-0 (21). Collazo lost the fight via 7th-round retirement.
On May 3, 2014 Luis Collazo faced off against Amir Khan in a welterweight bout at age 33. He was coming in with a record of 35-6 (18), and Khan was 27 years old and with a record of 28-3 (19). Collazo lost the fight via 12-round unanimous decision.
On October 15, 2011 Luis Collazo faced off against Freddy Hernández at age 30. He was coming in with a record of 31-5 (16), and Hernández was 32 years old and with a record of 8-1 (3). Collazo lost the fight via 10-round unanimous decision.
On January 17, 2009 Luis Collazo fought Andre Berto in a welterweight world-title fight for Berto's WBC title. Collazo was 27 years old and with a record of 29-4 (14), and Berto was 25 years old and with a record of 23-0 (19). Collazo lost the fight via 12-round unanimous decision.
On February 10, 2007 Luis Collazo fought Shane Mosley in a welterweight world-title fight for Mosley's WBC title. Collazo was 25 years old and with a record of 27-3 (13), and Mosley was 35 years old and with a record of 43-4 (37). Collazo lost the fight via 12-round unanimous decision.
On May 13, 2006 Luis Collazo met Ricky Hatton in a welterweight (WBA) world-title defense fight. Collazo was 25 years old and with a record of 26-2 (12), and Hatton was 27 years old and with a record of 40-0 (30). Collazo lost the fight via 12-round unanimous decision and lost the title.
On April 13, 2002 Luis Collazo faced off against Edwin Cassiani at age 20. He was coming in with a record of 14-1 (7). Collazo lost the fight via 3rd-round TKO.
