1961-03-13 Floyd Patterson w co 6 (15) Ingemar Johansson, Convention Hall, Miami Beach, Florida, USA - WORLD
1961-03-13 Floyd Patterson w co 6 (15) Ingemar Johansson, Convention Hall, Miami Beach, Florida, USA - WORLD. Referee: Billy Regan. In a sensational opening round the champion was decked twice before Johansson (206½) was sent down. That was followed by both men deciding to take a breather by clinching. Apart from Patterson (194¾) missing with a big punch and falling over, the second round was anti-climactic as there was little action. At the end of the third it was seen that both men were cut, Johansson over the right eye and Patterson over the left, and the next two sessions were hardly awe inspiring as both men bided their time. By the sixth, Johansson, who was now cut over both eyes, decided to pick up the action. However, after forcing Patterson against the ropes he was caught by a fearsome left hook and two rights before crashing down to be counted out on the 2.10 mark. Afterwards, Patterson claimed that he was not happy with his own performance, mainly because he did not quite know whether to box or fight.
In September the NBA announced that they had changed the every six-month defence ruling to that of every 12 months for the heavyweight division. That would stand as long as the champion met whoever the Association rated as the number-one contender during that period.