Rocky Balboa is loosely based on this American former professional boxer who fought at heavyweight ans was born in what year
Chuck Wepner Charles "Chuck" Wepner (born February 26, 1939) is an American former professional boxer who fought at heavyweight. As a world ranked contender he fell just seconds short of a full fifteen rounds with world heavyweight champion Muhammad Ali in a 1975 title fight. Wepner also scored notable wins over Randy Neumann and Ernie Terrell.
Rocky Lockridge Rick "Rocky" Lockridge (born January 30, 1959) is an American former professional boxer. He is known for handing Roger Mayweather his first defeat—a first-round knockout in just 98 seconds—earning him the WBA and lineal super featherweight titles. He later won the IBF super featherweight title.