On November 18, 1970, the 26-year-old undisputed heavyweight world champion, Joe Frazier (25-0, 22 KOs), faced a 28-year-old Bob Foster (41-4, 35 KOs) in an undisputed title defense fight.
Frazier came in to the fight on a 25-fight win streak with a 88% KO rate, and was fighting after a gap of 9 months and 2 days. Foster was on a 20-fight win streak with a 77% KO rate, and fighting after a layoff of 4 months and 22 days.
Joe Frazier made very easy work of Bob Foster, stopping the challenger via KO in the 2nd. Frazier improves his record to 26-0 (23 KOs), while Foster adds a loss to his record at 41-5.
On March 8, 1971, the 27-year-old undisputed heavyweight world champion, Joe Frazier (26-0, 23 KOs), faced a 29-year-old Muhammad Ali (31-0, 25 KOs) in an undisputed title defense fight.
Frazier came in to the fight on a 26-fight win streak with a 88% KO rate, and was fighting after a gap of 3 months and 18 days. Ali was on a 31-fight win streak with a 80% KO rate, and fighting after a layoff of 3 months and 1 day.
Joe Frazier defeated Muhammad Ali via unanimous decision and successfully defended his WBA and WBC heavyweight titles. Frazier improves his record to 27-0, while Ali adds a loss to his record at 31-1.
On May 25, 1972, the 28-year-old undisputed heavyweight world champion, Joe Frazier (28-0, 24 KOs), faced a undefined Ron Stander undefined in an undisputed title defense fight.
Frazier came in to the fight on a 28-fight win streak with a 85% KO rate, and was fighting after a gap of 4 months and 10 days.
The challenger refused to continue the fight in the 4th round, and Joe Frazier is crowned the new heavyweight world champion. Frazier improves his record to 29-0 (25 KOs)
On January 15, 1972, the 28-year-old undisputed heavyweight world champion, Joe Frazier (27-0, 23 KOs), faced a undefined Terry Daniels undefined in an undisputed title defense fight.
Frazier came in to the fight on a 27-fight win streak with a 85% KO rate, and was fighting after a gap of 10 months and 7 days.
Joe Frazier stopped Terry Daniels via TKO in the 4th round of the 15-round world-title fight, and successfully defended his WBA, WBC, and The Ring heavyweight titles. Frazier improves his record to 28-0 (24 KOs)
On February 16, 1970, a 26-year-old Joe Frazier (24-0, 21 KOs) got a shot at the undisputed heavyweight championship held by 29-year-old Jimmy Ellis (27-5, 12 KOs).
Frazier came in to the fight on a 24-fight win streak with a 87% KO rate, and was fighting after a gap of 7 months and 24 days. Ellis was on a 12-fight win streak with a 37% KO rate, and fighting after a layoff of 1 year, 5 months, and 2 days.
The champion refused to continue the fight in the 4th round, and Joe Frazier is crowned the new WBA and WBC heavyweight world champion — and becomes the undisputed heavyweight world champion — in his first world-title fight. Frazier improves his record to 25-0 (22 KOs), while Ellis adds a loss to his record at 27-6.
On June 24, 1968, a 24-year-old Joe Frazier (20-0, 18 KOs) and Manuel Ramos met in the ring in a heavyweight bout.
Frazier came in to the fight on a 20-fight win streak with a 90% KO rate, and was fighting after a gap of 3 months and 20 days.
Joe Frazier stopped Manuel Ramos via TKO in the 2nd round. Frazier improves his record to 21-0 (19 KOs)
On June 23, 1969, a 25-year-old Joe Frazier (23-0, 20 KOs) and a 24-year-old Jerry Quarry (31-2-4, 18 KOs) met in the ring in a heavyweight bout.
Frazier came in to the fight on a 23-fight win streak with a 87% KO rate, and was fighting after a gap of 2 months and 1 day. Quarry was on a 5-fight win streak with a 48% KO rate, and fighting after a layoff of 2 months and 30 days.
Joe Frazier stopped Jerry Quarry via RTD in the 7th round. Frazier improves his record to 24-0 (21 KOs), while Quarry adds a loss to his record at 31-3-4.
On March 4, 1968, a 24-year-old Joe Frazier (19-0, 17 KOs) and a 24-year-old Buster Mathis (23-0, 17 KOs) met in the ring in a heavyweight bout.
Frazier came in to the fight on a 19-fight win streak with a 89% KO rate, and was fighting after a gap of 2 months and 15 days. Mathis was on a 23-fight win streak with a 73% KO rate, and fighting after a layoff of 2 months and 7 days.
Joe Frazier stopped Buster Mathis via TKO in the 11th round. Frazier improves his record to 20-0 (18 KOs), while Mathis adds a loss to his record at 23-1.
On December 10, 1968, a 24-year-old Joe Frazier (21-0, 19 KOs) and a 26-year-old Argentinian boxer Oscar Bonavena (38-4, 29 KOs) met in the ring for the 2nd time, in a heavyweight bout.
Frazier came in to the fight on a 21-fight win streak with a 90% KO rate, and was fighting after a gap of 5 months and 16 days. Bonavena was on a 7-fight win streak with a 69% KO rate, and fighting after a layoff of 1 month and 1 day.
In the rematch, Joe Frazier defeated Oscar Bonavena via unanimous decision in the 15-round heavyweight fight. Frazier improves his record to 22-0, while Bonavena adds a loss to his record at 38-5.
On April 22, 1969, a 25-year-old Joe Frazier (22-0, 19 KOs) and Dave Zyglewicz met in the ring in a heavyweight bout.
Frazier came in to the fight on a 22-fight win streak with a 86% KO rate, and was fighting after a gap of 4 months and 12 days.
Joe Frazier stopped Dave Zyglewicz via KO in the 1st round. Frazier improves his record to 23-0 (20 KOs)