On September 28, 1976, a 33-year-old Ken Norton (37-3, 30 KOs) got a shot at the undisputed heavyweight championship held by 34-year-old Muhammad Ali (52-2, 37 KOs).
Norton came in to the fight on a 7-fight win streak with a 75% KO rate, and was fighting after a gap of 2 months and 18 days. Ali was on a 11-fight win streak with a 68% KO rate, and fighting after a layoff of 4 months and 4 days.
Muhammad Ali defeated Ken Norton via unanimous decision in the rematch and successfully defended his WBA, WBC, and The Ring heavyweight titles. Ali improves his record to 53-2, while Norton adds a loss to his record at 37-4.
On March 24, 1975, a 31-year-old Ken Norton (32-3, 25 KOs) and a 29-year-old Jerry Quarry (50-7-4, 30 KOs) met in the ring in a heavyweight bout.
Norton came in to the fight on a 2-fight win streak with a 71% KO rate, and was fighting after a gap of 20 days. Quarry was on a 1-fight win streak with a 49% KO rate, and fighting after a layoff of 27 days.
Ken Norton stopped Jerry Quarry via TKO in the 5th round. Norton improves his record to 33-3 (26 KOs), while Quarry adds a loss to his record at 50-8-4.
On May 11, 1977, a 33-year-old Ken Norton (37-4, 30 KOs) and Duane Bobick met in the ring.
Norton came in to the fight on a 1-fight losing streak with a 73% KO rate, and was fighting after a gap of 7 months and 13 days.
Ken Norton stopped Duane Bobick via TKO in the 1st round. Norton improves his record to 38-4 (31 KOs)
On March 31, 1973, a 29-year-old Ken Norton (29-1, 23 KOs) and a 31-year-old Muhammad Ali (41-1, 31 KOs) met in the ring in a heavyweight bout.
Norton came in to the fight on a 13-fight win streak with a 76% KO rate, and was fighting after a gap of 3 months and 18 days. Ali was on a 10-fight win streak with a 73% KO rate, and fighting after a layoff of 1 month and 17 days.
Ken Norton defeated Muhammad Ali via split decision in the 12-round heavyweight fight. Norton improves his record to 30-1, while Ali adds a loss to his record at 41-2.
On April 30, 1976, a 32-year-old Ken Norton (35-3, 28 KOs) and Ron Stander met in the ring.
Norton came in to the fight on a 5-fight win streak with a 73% KO rate, and was fighting after a gap of 3 months and 20 days.
Ken Norton stopped Ron Stander via TKO in the 5th round. Norton improves his record to 36-3 (29 KOs)
On January 10, 1976, a 32-year-old Ken Norton (34-3, 27 KOs) and Pedro Lovell met in the ring.
Norton came in to the fight on a 4-fight win streak with a 73% KO rate, and was fighting after a gap of 4 months and 27 days.
Ken Norton stopped Pedro Lovell via TKO in the 5th round. Norton improves his record to 35-3 (28 KOs)
On August 14, 1975, a 32-year-old Ken Norton (33-3, 26 KOs) and Jose Luis Garcia met in the ring for the 2nd time,.
Norton came in to the fight on a 3-fight win streak with a 72% KO rate, and was fighting after a gap of 4 months and 21 days.
In the rematch, Ken Norton stopped Jose Luis Garcia via KO in the 5th round. Norton improves his record to 34-3 (27 KOs)
On June 25, 1974, a 30-year-old Ken Norton (30-3, 23 KOs) and Boone Kirkman met in the ring.
Norton came in to the fight on a 2-fight losing streak with a 69% KO rate, and was fighting after a gap of 2 months and 30 days.
Ken Norton stopped Boone Kirkman via RTD in the 7th round. Norton improves his record to 31-3 (24 KOs)
On March 4, 1975, a 31-year-old Ken Norton (31-3, 24 KOs) and Rico Brooks met in the ring.
Norton came in to the fight on a 1-fight win streak with a 70% KO rate, and was fighting after a gap of 8 months and 7 days.
Ken Norton stopped Rico Brooks via KO in the 1st round. Norton improves his record to 32-3 (25 KOs)
On October 16, 1970, a 27-year-old Ken Norton (18-1, 16 KOs) and Roby Harris met in the ring.
Norton came in to the fight on a 2-fight win streak with a 84% KO rate, and was fighting after a gap of 20 days.
Ken Norton stopped Roby Harris via KO in the 2nd round. Norton improves his record to 19-1 (17 KOs)