Muhammad Ali vs. Joe Frazier III — 'Thrilla in Manila' (1975)
The case
#1 because the final validated order places "Muhammad Ali vs. Joe Frazier III — 'Thrilla in Manila' (1975)" first with 79 framework points. It is placed above #2 "Muhammad Ali vs. Joe Frazier I — 'The Fight of the Century' (1971)" by the deterministic evidence, prompt-fit, source-count, and title tie-breaks.
Best evidence
The most punishing chapter of boxing's greatest rivalry: two unbeaten-level icons pushing each other to physical and psychological limits in a fight still used as shorthand for extreme championship courage.
Muhammad Ali vs. Joe Frazier I — 'The Fight of the Century' (1971)
The case
#2 because the final validated order places "Muhammad Ali vs. Joe Frazier I — 'The Fight of the Century' (1971)" here with 79 framework points. It follows #1 "Muhammad Ali vs. Joe Frazier III — 'Thrilla in Manila' (1975)" after those deterministic tie-breaks. It is placed above #3 "Jack Dempsey vs. Luis Ángel Firpo — 'The Wild Bull of the Pampas' Fight (1923)" by the deterministic evidence, prompt-fit, source-count, and title tie-breaks.
Best evidence
A rare sports event that exceeded boxing: two undefeated heavyweight champions, political symbolism, celebrity spectacle, and a definitive Frazier victory that reshaped Ali's career arc.
Jack Dempsey vs. Luis Ángel Firpo — 'The Wild Bull of the Pampas' Fight (1923)
The case
#3 because the final validated order places "Jack Dempsey vs. Luis Ángel Firpo — 'The Wild Bull of the Pampas' Fight (1923)" here with 79 framework points. It follows #2 "Muhammad Ali vs. Joe Frazier I — 'The Fight of the Century' (1971)" after those deterministic tie-breaks. It leads #4 "Sugar Ray Leonard vs. Thomas Hearns I — 'The Showdown' (1981)" by 4 points.
Best evidence
A chaotic, myth-making heavyweight title fight with one of boxing's most famous knockdown sequences: Firpo blasted Dempsey through the ropes before Dempsey returned to win.
welterweightSugar Ray LeonardThomas Hearns1981Four Kingstactics
Sugar Ray Leonard vs. Thomas Hearns I — 'The Showdown' (1981)
The case
#4 because the final validated order places "Sugar Ray Leonard vs. Thomas Hearns I — 'The Showdown' (1981)" here with 75 framework points. It trails #3 "Jack Dempsey vs. Luis Ángel Firpo — 'The Wild Bull of the Pampas' Fight (1923)" by 4 points. It is placed above #5 "Marvelous Marvin Hagler vs. Thomas Hearns — 'The War' (1985)" by the deterministic evidence, prompt-fit, source-count, and title tie-breaks.
Best evidence
A masterclass in tactical adjustment and elite welterweight risk: Hearns boxed brilliantly early before Leonard rallied late to stop him in a defining bout of the 1980s.
Marvelous Marvin Hagler vs. Thomas Hearns — 'The War' (1985)
The case
#5 because the final validated order places "Marvelous Marvin Hagler vs. Thomas Hearns — 'The War' (1985)" at the publication cutoff with 75 framework points. It follows #4 "Sugar Ray Leonard vs. Thomas Hearns I — 'The Showdown' (1981)" after those deterministic tie-breaks.
Best evidence
Three rounds of ferocious, elite-level violence that became the benchmark for action fights: brief, brutal, and endlessly replayable.