On September 25, 1962, the heavyweight landscape changed dramatically at Comiskey Park in Chicago as Sonny Liston demolished Floyd Patterson in just over two minutes of the first round to capture the world heavyweight championship.

Patterson, entering with a 38-2 record and 29 knockouts, was making the third defence of his second reign as champion. Despite his status, oddsmakers and the public largely saw him as the underdog. Liston, a 33-1 powerhouse with 23 knockouts, had spent years bulldozing his way through contenders and entered the bout as an 8-5 betting favourite.

The fight was more than a title defence; it was an event of enormous magnitude. Closed-circuit television beamed the contest to 264 locations across the United States and Canada, while 18,894 fans filled Comiskey Park. The live gate grossed $665,420, a massive figure for the era. Patterson’s contract entitled him to the majority share of revenues, but it was Liston who seized the true prize inside the ring.

From the opening bell, Patterson attempted to use his speed and head movement to offset the challenger’s daunting size. Liston, who outweighed Patterson by 24 pounds and enjoyed a significant reach advantage, quickly established control. Roughly midway through the first round, a crushing right uppercut staggered the champion. Smelling the finish, Liston unleashed a ferocious assault. The final blow, a thunderous left hook, sent Patterson to the canvas.

Patterson struggled valiantly to his knees but could not beat referee Frank Sikora’s count. The official time was 2:06 of the first round, marking one of the most decisive championship victories in heavyweight history.

The defeat was more than just a setback for Patterson; it was a watershed moment in boxing. Just a few years earlier, he had become the youngest heavyweight champion in history by dethroning Archie Moore. He had even bounced back from a loss to Ingemar Johansson to make history as the first man to regain the heavyweight crown. But against Liston, the size, power, and intimidation proved insurmountable.

The contract ensured Patterson a rematch within a year, but the message on that September night was unmistakable: Sonny Liston had arrived as the dominant force in the division. His quick knockout of Floyd Patterson remains etched in the annals of boxing history, a fight that symbolized both the unforgiving nature of the sport and the sudden shifts in heavyweight supremacy.