[Answer] Who is the only heavyweight boxing champion to retire with an undefeated record?

Step 1 : Introduction to the question "Who is the only heavyweight boxing champion to retire with an undefeated record?"

...Rocky Marciano remains the only heavyweight champion in boxing history to retire undefeated. Known for his relentless fighting style and formidable punching power, Marciano compiled an astonishing professional record of 49 wins and 0 losses, with 43 victories coming by knockout. He held the heavyweight title from 1952 to 1956, successfully defending it six times before retiring at the age of 32. His unbeaten legacy stands as one of the most remarkable achievements in the entire sport’s storied history, cementing his place as a true boxing legend.

Step 2 : Answer to the question "Who is the only heavyweight boxing champion to retire with an undefeated record?"

Rocky Marciano:

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