The South Dakota native was signed as a 19-year-old catcher in 1963 and quickly got his chance to impress the big league Colt .45s the following year. He got into eight games over the next two seasons, batting .143 in 21 at bats. It was his only big league action.

Hoffman passed away on December 27, 2001 at the age of 58 in Seattle, WA.