Marc Ratner was born July 25, 1944 in Phoenix, Arizona. His family moved to Las Vegas, Nevada when he was in the seventh grade in 1957. The Ratner family belonged to Temple Beth Sholom. Ratner is a graduate of Las Vegas High School and Nevada Southern (now UNLV.) Ratner worked for decades at officiating and regulating sports events, especially boxing, mixed martial arts, and football. He served as official in three collegiate bowl games: the 2003 Aloha Bowl, 2000 Independence Bowl and 2006 Cotton Bowl.
He became a ring inspector in 1985 and became Vice President of Regulatory Affairs for the Ultimate Fighting Championship in 2006. He served as the Nevada State Athletic Commission executive director for two decades. Ratner also serves on the board of the Jewish Family Services Agency. In 1997 he was honored by the National Council of Christians and Jews.
In 2016, he was inducted into the International Boxing Hall of Fame, an extraordinary honor for a nonparticipant.