Sean O'Connor is entering his second season on the sidelines at Adelphi University as an assistant coach.
He brings over two decades of basketball experience with him to Adelphi. O'Connor, a St. John's University alumnus, comes to Adelphi after a one year stint as the head coach at Mercy College, who compete in the East Coast Conference.
Prior to Mercy College O'Connor was an assistant coach at Chaminade High School in Mineola, New York. He also rebuilt the St. Mary's High School women's basketball program. In O'Connor's first season at the helm he ended a ten-year drought by making the playoffs and did so every season during his five-year tenure.
O'Connor has also managed many camps and clinics, including Corpus Christi Parish Basketball Clinic in Mineola. He supervised all aspects of the clinic which had over 100 boys and girls. In this role, he started several community outreach initiatives. He also worked with the Hope Thru Hoops Foundation, specializing in fundraising for athletic scholarships.
O'Connor was instrumental in building the St. Andrew's Avellino Catholic Youth Organization boys basketball program. They won six consecutive league championships under his tutelage from 1995-2001 and went to three diocesan finals.
O'Connor was a camp counselor at the Hofstra University Basketball Camp, where he assisted with coaching, refereeing and supervision of camp attendees. He coached the Rising Stars (boys) and LI Xtreme (girls) AAU programs.
He started his coaching career in 1987 for his alma mater, Monsignor Scanlan High School in the Bronx, as an assistant men's varsity basketball coach. He played four years at Scanlan and then moved onto St. John's University where he played for two seasons with the junior varsity-club program.
O'Connor earned his bachelor's of science degree in Biology from St. John's University. In 1998 he received a master's of public administration from Marist College and he graduated from the FBI National Academy in 2003.