How it unfolded
This matchup between unified middleweight champion Marvin Hagler and Kronk product Thomas Hearns pitted each man's best weapon directly against the other's. It lasted just eight minutes and one second, but that stretch remains the most violent in boxing history. Both fighters skipped the feeling-out process from the first round and traded power punches. The Ring later named that first round the Round of the Century. Hearns hurt his right hand in the exchange, and Hagler's forehead opened and bled. In the third round, referee Richard Steele called in the ringside doctor to check Hagler's cut, and sensing the fight might be stopped, Hagler charged the instant action resumed. A right hand landed on Hearns's jaw and dropped him to the canvas. He rose on unsteady legs, but Steele stopped it at 2:01. Some 15,000 fans watched the outdoor fight.
Why it still matters
Widely rated the peak of the 'Four Kings' era and a fight where technique and violence both reached their maximum simultaneously. Eight minutes in which both men abandoned calculation and simply threw at each other became the comparison point for every great fight since. Hagler completed his middleweight dominance with this win, then closed out the era two years later, losing the title to Sugar Ray Leonard on decision.