Director of Officials
National Basketball Association
Ronnie Nunn, the NBA’s Director of Officials, is a veteran of 23 NBA seasons. During his officiating career, which spanned 19 seasons, Nunn worked 1,134 regular-season, 73 playoff and four NBA Finals games, as well as the 1996 NBA All-Star Game, the 1993 McDonald’s Championship in Munich, Germany, the NBA Japan Summer Charity Games in 1996 and the 2000 Mexico Challenge. He has also been involved in the WNBA’s mentor program and is an NBA instructor during the summer.
Nunn handles the day-to-day management of the officiating staff, including daily instruction on the correct application of NBA playing rules. He reports directly to Stu Jackson, Executive Vice President, 
Basketball Operations.
Prior to joining the NBA as an official, Nunn officiated in the CBA for two years, and officiated Pro-Am basketball in New York City for two years. He also has one year of high school officiating experience in New York and New Jersey, and worked as a special education teacher for 10 years.
Nunn was an assistant coach at Pace University from 1978-1980 and at his alma mater, Brooklyn Tech High School from 1976-77. He played professionally on the National Basketball Circuit of Mexico from 1972-74 and was named MVP in 1973, and Best Player of the Decade (1970s). Nunn played collegiate basketball for three seasons at George Washington University where he became the Colonials’ leading scorer and a member of the 1,000 points club in 1972. He was inducted into the George Washington University Hall of Fame in 1997 and named to the school’s All-Century Team. Nunn received his undergraduate degree from George Washington and an M.S. at the College of New Rochelle and an M.S. at Queens College.
Nunn, along with his wife, Andee, an American Studies teacher at Danbury HS, has established the Nunn-Better Scholarship Award, given to students of diverse backgrounds who have demonstrated academic excellence and have overcome other obstacles in their lives. The award is offered 
to students of Danbury High School and The Hord Foundation.
Born and raised in Brooklyn, N.Y., Nunn currently resides in Danbury, Conn. He is the father of two daughters, Ilana who works as a publicist, and Alexi who works as an attorney. He is also a member of the local NAACP and Danbury’s Concerned Black Men, an organization that tutors and mentors minority students.
In 2009 in Katowice Ronnie was an instructor at EMW Referee’s Camp.
Check “Officials Time Out” by Ronnie Nunn
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Check “Double Dribble” by Ronnie Nynn
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Efim Resser was born on February 27, 1952 in USSR.
Former basket ball player, youth and juniors until age 20.
ULEB and FIBA commissioner
Officiated many major events and competitions including:
Referee since 1973
Costas Rigas started as a basketball player with 1st Greek division club. Later he became a coach and a referee in the same time.
Mr. Kotleba`s basketball career was the following:
Officiated over 2,000 regular NBA season and 75 play-off games in his career.
