Scates has served as head men's volleyball coach at UCLA the past 42 years, which has netted 18 NCAA titles since 1970. He has been named national coach of the year five times and holds the record for most men's collegiate victories at 1,083.
Scates was an inaugural recipient of USA Volleyball's All-Time Great Volleyball Coaches Award and is the first active coach to be inducted into the USA Volleyball Hall of Fame and the UCLA Athletic Hall of Fame. He was inducted into the California Beach Volleyball Hall of Fame in 1998 and earned the 2003 UCLA Alumni Association Award in Professional Achievement. Scates was the founder and director of the Southern California Volleyball Association in 1963, which now operates as the Mountain Pacific Sports Federation.
His other accomplishments include being named as the coach of the USA Volleyball All-Era Team (1978-2002) and recipient of the U.S. Olympic Committee 1998 Coach of the Year. Scates was named the 1998 USA Volleyball National Coach of the Year.
Scates has been elected to his second tour of duty as AVCA men's representative starting on Jan. 1, 2005. He also served as a board representative from 1986-89. Scates participated on the NCAA Men's Volleyball Committee for four years, including a two-year stint (1972-73) as its chair.