On March 25, 1989, the 25-year-old IBF middleweight world champion, Michael Nunn (32-0, 22 KOs), faced a 32-year-old Italian boxer Sumbu Kalambay (46-3-1, 26 KOs), in a title defense fight.
Nunn came in to the fight on a 32-fight win streak with a 68% KO rate, and was fighting after a gap of 4 months and 21 days. Kalambay was on a 9-fight win streak with a 52% KO rate, and fighting after a layoff of 4 months and 17 days.
Michael Nunn made quick work of Sumbu Kalambay, stopping the challenger via KO in the 1st. Nunn improves his record to 33-0 (23 KOs), while Kalambay adds a loss to his record at 46-4-1.
On February 20, 1993, the 29-year-old WBA super-middleweight world champion, Michael Nunn (39-1, 25 KOs), faced Danny Morgan, in a title defense fight.
Nunn came in to the fight on a 3-fight win streak with a 62% KO rate, and was fighting after a gap of 21 days.
Michael Nunn made quick work of Danny Morgan, stopping the challenger via KO in the 1st. Nunn improves his record to 40-1 (26 KOs)
On January 30, 1993, Michael Nunn and Víctor Córdoba met again in an immediate rematch.
Nunn came in to the fight on a 2-fight win streak with a 64% KO rate, and was fighting after a gap of 4 months and 18 days. Cordoba was on a -1-fight win streak with a 60% KO rate, and fighting after a layoff of 4 months and 18 days.
Michael Nunn defeated Víctor Córdoba via unanimous decision in the rematch and successfully defended his WBA super-middleweight title. Nunn improves his record to 39-1, while Cordoba adds a loss to his record at 19-4-3.
On July 28, 1988, a 25-year-old Michael Nunn (30-0, 20 KOs) got a shot at the IBF middleweight title held by 23-year-old Frank Tate (23-0, 13 KOs).
Nunn came in to the fight on a 30-fight win streak with a 66% KO rate, and was fighting after a gap of 1 month and 28 days. Tate was on a 23-fight win streak with a 56% KO rate, and fighting after a layoff of 2 months and 7 days.
Michael Nunn stopped the champion via TKO in the 9th round of the 15-round world-title fight, winning the first world title of his career, and is crowned the new IBF middleweight champion. Nunn improves his record to 31-0 (21 KOs), while Tate adds a loss to his record at 23-1.
On April 23, 1993, the 30-year-old WBA super-middleweight world champion, Michael Nunn (40-1, 26 KOs), faced Crawford Ashley, in a title defense fight.
Nunn came in to the fight on a 4-fight win streak with a 63% KO rate, and was fighting after a gap of 2 months and 3 days.
Michael Nunn stopped Crawford Ashley via TKO in the 6th round of the 12-round world-title fight, and successfully defended his WBA super-middleweight title. Nunn improves his record to 41-1 (27 KOs)
On September 12, 1992, a 29-year-old Michael Nunn (37-1, 25 KOs) got a shot at the WBA super-middleweight title held by 30-year-old Panamanian boxer Víctor Córdoba (19-2-3, 15 KOs).
Nunn came in to the fight on a 1-fight win streak with a 65% KO rate, and was fighting after a gap of 9 months and 14 days. Cordoba was on a 7-fight win streak with a 62% KO rate, and fighting after a layoff of 8 months and 30 days.
Michael Nunn defeated Víctor Córdoba via split decision and wins the WBA title. Nunn improves his record to 38-1, while Cordoba adds a loss to his record at 19-3-3.
On November 4, 1988, the 25-year-old IBF middleweight world champion, Michael Nunn (31-0, 21 KOs), faced Juan Roldán, in a title defense fight.
Nunn came in to the fight on a 31-fight win streak with a 67% KO rate, and was fighting after a gap of 3 months and 7 days.
Michael Nunn stopped Juan Roldán via KO in the 8th round of the 12-round world-title fight, and successfully defended his IBF middleweight title. Nunn improves his record to 32-0 (22 KOs)
On October 18, 1990, the 27-year-old IBF middleweight world champion, Michael Nunn (35-0, 23 KOs), faced a 29-year-old Donald Curry (33-3, 24 KOs), in a title defense fight.
Nunn came in to the fight on a 35-fight win streak with a 65% KO rate, and was fighting after a gap of 6 months and 4 days. Curry was on a 2-fight win streak with a 66% KO rate, and fighting after a layoff of 2 months and 1 day.
Michael Nunn stopped Donald Curry via KO in the 10th round of the 12-round world-title fight, and successfully defended his IBF middleweight title. Nunn improves his record to 36-0 (24 KOs), while Curry adds a loss to his record at 33-4.
On April 14, 1990, the 27-year-old IBF middleweight world champion, Michael Nunn (34-0, 23 KOs), faced a 30-year-old Marlon Starling (45-4-1, 27 KOs), in a title defense fight.
Nunn came in to the fight on a 34-fight win streak with a 67% KO rate, and was fighting after a gap of 8 months. Starling was on a 2-fight win streak with a 54% KO rate, and fighting after a layoff of 6 months and 30 days.
Michael Nunn defeated Marlon Starling via majority decision and successfully defended his IBF middleweight title. Nunn improves his record to 35-0, while Starling adds a loss to his record at 45-5-1.
On December 18, 1993, the 30-year-old WBA super-middleweight world champion, Michael Nunn (41-1, 27 KOs), faced Merqui Sosa, in a title defense fight.
Nunn came in to the fight on a 5-fight win streak with a 64% KO rate, and was fighting after a gap of 7 months and 25 days.
Michael Nunn defeated Merqui Sosa via unanimous decision and successfully defended his WBA super-middleweight title. Nunn improves his record to 42-1