Rocky Marciano
American heavyweight boxing champion (1923-1969)
Rocco Francis Marchegiano (September 1, 1923 – August 31, 1969; Italian pronunciation: [markeˈdʒaːno]), better known as Rocky Marciano (, Italian: [marˈtʃaːno]), was an American professional boxer who competed from 1947 to 1955. He held the world heavyweight championship from 1952 to 1956, and remains the only heavyweight champion to finish his career undefeated. His six title defenses were against Jersey Joe Walcott (from whom he had taken the title), Roland La Starza, Ezzard Charles (twice), Don Cockell and Archie Moore.
Known for his relentless fighting style, formidable punching power, stamina, and exceptionally durable chin, Marciano is considered one of the greatest heavyweight boxers of all time. Marciano remains the only fighter to have stopped every opponent he ever faced for the world heavyweight title, and holds the highest knockout-to-win percentage in world heavyweight title fights at 85.71%. His career knockout-to-win percentage of 87.8% remains one of the highest in heavyweight boxing history. Marciano is ranked #14 in The Ring magazine's list of the 100 greatest punchers of all time.
Early life
Born Rocco Francis Marchegiano on September 1, 1923, Rocky was raised on the south side of Brockton, Massachusetts. His parents, Pierino Marchegiano and Pasqualina Picciuto, were both immigrants from Italy. His father was from Ripa Teatina, Abruzzo, while his mother was from San Bartolomeo in Galdo, Campania.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 15, 2026. The linked authority identifier is Q188362. VIAF identifies the subject as 47690358. The Library of Congress control number is nr98013190. 4 of 4 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1923, 1969, 1947 and 1955.
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This entry incorporates text from “Rocky Marciano” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.