Coaching Staff


Richard Yoon
Varsity Basketball Head Coach

In his 27th year at Rosary, he is the longest active girls coach at one school in the county with an impressive 473-291 record. Known for his concepts on defensive strategy and creative offense, Coach Yoon finished the 2016-2017 year with an astonishing 30-5 record. His team completed that remarkable season as CIF-SS Division 2AA Champions, Division III Regional Champions, and Division III State Champions. Coach Yoon was honored with Los Angeles Times Coach of the Year, Orange County Register Coach of the Year, and CIF Division 2AA Coach of the Year. Coach Yoon is no stranger to success. The Royals have been ranked in the County Top Ten for 21 out of his 26 years. Other impressive statistics include a 1999 CIF Championship, four League Championships, four State appearances, and 12 trips to the CIF Semi-Finals. Rich has been rewarded for his efforts by being named Coach of the Year five times, and has been the coach of the Senior All Star team four times in his career.
A graduate of Long Beach State and USC, Coach Yoon also teaches AP Chemistry at Rosary and serves as the Director of Curriculum and Instruction. Richard lives in Placentia with his wife Emily, their daughters Kylie, Madilyn, and Eleanor; and sons James and Miles.

Matt Raya
Frosh/Soph Head Coach/ Varsity Softball Assistant
Matt Raya is starting his 14th season at Rosary, his 6th as the freshman head coach. He is a graduate of CSUF, and is currently the PE teacher and Athletic Director at St. Joseph School in Placentia. He resides in the city of Placentia with Jenny, his wife of 9 years, and their three sons: Tucker, Lucas, and Bridger. He enjoys teaching the freshmen the fundamentals of the game and how Rosary basketball is played.

Kelly Cole Huerta '10


Kelly Huerta graduated from Rosary High School in 2010.  While attending Rosary, she played basketball for all four years.  She was coached by Matt Raya her freshman year and Coach Yoon her last two years.  She was Varsity captain and earned Second Team All-League honors her senior year.


Kelly is a graduate of Northern Arizona University with her Bachelor of Science Degree in Public Health.  She currently works in Whittier and enjoys playing club basketball with some of her former Rosary alumnae teammates.  

Kelly resides in Rosemead with her husband George. She is very excited to continue to coach at her alma mater and share her passion for the game.