On August 13, 2005, the 24-year-old WBA (Regular) welterweight world champion, Luis Collazo (25-1, 11 KOs), faced a 34-year-old Mexican boxer Miguel Ángel González (49-4-1, 39 KOs), in a title defense fight.
Collazo came in to the fight on a 11-fight win streak with a 42% KO rate, and was fighting after a gap of 4 months and 11 days. González was on a -1-fight win streak with a 72% KO rate, and fighting after a layoff of 11 months and 9 days.
The challenger refused to continue the fight in the 7th round, and Luis Collazo is crowned the new welterweight world champion. Collazo improves his record to 26-1 (12 KOs), while González adds a loss to his record at 49-5-1.
On April 2, 2005, a 23-year-old Luis Collazo (24-1, 11 KOs) got a shot at the WBA (Regular) welterweight title held by José Antonio Rivera.
Collazo came in to the fight on a 10-fight win streak with a 44% KO rate, and was fighting after a gap of 1 month and 9 days.
Luis Collazo defeated José Antonio Rivera via split decision and wins the WBA (Regular) title — in his first world-title fight. Collazo improves his record to 25-1
On January 30, 2014, a 32-year-old Luis Collazo (34-5, 17 KOs) and a 26-year-old Victor Ortiz (29-4-2, 22 KOs) met in the ring in a welterweight bout.
Collazo came in to the fight on a 3-fight win streak with a 43% KO rate, and was fighting after a gap of 4 months and 28 days. Ortiz was on a -2-fight win streak with a 62% KO rate, and fighting after a layoff of 1 year, 7 months, and 7 days.
Luis Collazo stopped Victor Ortiz via KO in the 2nd round. Collazo improves his record to 35-5 (18 KOs), while Ortiz adds a loss to his record at 29-5-2.
On May 13, 2006, the 25-year-old WBA welterweight world champion, Luis Collazo (26-1, 12 KOs), faced a 27-year-old British boxer Ricky Hatton (40-0, 30 KOs), in a title defense fight.
Collazo came in to the fight on a 12-fight win streak with a 44% KO rate, and was fighting after a gap of 9 months. Hatton was on a 40-fight win streak with a 75% KO rate, and fighting after a layoff of 5 months and 17 days.
Ricky Hatton defeated Luis Collazo via unanimous decision and wins the WBA title. Hatton improves his record to 41-0, while Collazo adds a loss to his record at 26-2.
On January 17, 2009, a 27-year-old Luis Collazo (29-3, 14 KOs) got a shot at the welterweight WBC title held by 25-year-old Andre Berto (23-0, 19 KOs).
Collazo came in to the fight on a 2-fight win streak with a 43% KO rate, and was fighting after a gap of 3 months and 21 days. Berto was on a 23-fight win streak with a 82% KO rate, and fighting after a layoff of 3 months and 21 days.
Andre Berto defeated Luis Collazo via unanimous decision and successfully defended his WBC welterweight title. Berto improves his record to 24-0, while Collazo adds a loss to his record at 29-4.
On September 2, 2013, a 32-year-old Luis Collazo (33-5, 17 KOs) and Alan Sanchez met in the ring in a welterweight bout.
Collazo came in to the fight on a 2-fight win streak with a 44% KO rate, and was fighting after a gap of 4 months and 6 days.
Luis Collazo defeated Alan Sanchez via unanimous decision in the 10-round welterweight fight. Collazo improves his record to 34-5
On February 24, 2005, a 23-year-old Luis Collazo (23-1, 10 KOs) and Richard Heath met in the ring.
Collazo came in to the fight on a 9-fight win streak with a 41% KO rate, and was fighting after a gap of 27 days.
Luis Collazo stopped Richard Heath via TKO in the 1st round. Collazo improves his record to 24-1 (11 KOs)
On April 11, 2015, a 33-year-old Luis Collazo (35-6, 18 KOs) and Chris Degollado met in the ring.
Collazo came in to the fight on a 1-fight losing streak with a 43% KO rate, and was fighting after a gap of 11 months and 8 days.
Luis Collazo stopped Chris Degollado via TKO in the 2nd round. Collazo improves his record to 36-6 (19 KOs)
On April 1, 2001, a 19-year-old Luis Collazo (6-0, 3 KOs) and George Best met in the ring.
Collazo came in to the fight on a 6-fight win streak with a 50% KO rate, and was fighting after a gap of 1 month and 8 days.
Luis Collazo stopped George Best via TKO in the 2nd round. Collazo improves his record to 7-0 (4 KOs)
On February 10, 2007, a 25-year-old Luis Collazo (27-2, 13 KOs) and a 35-year-old Shane Mosley (43-4, 37 KOs) met in the ring in a welterweight bout.
Collazo came in to the fight on a 1-fight win streak with a 44% KO rate, and was fighting after a gap of 3 months and 6 days. Mosley was on a 4-fight win streak with a 78% KO rate, and fighting after a layoff of 6 months and 26 days.
Shane Mosley defeated Luis Collazo via unanimous decision in the 12-round welterweight fight. Mosley improves his record to 44-4, while Collazo adds a loss to his record at 27-3.