The Official Site for ARC Beaver Athletics




Coaching Staff





Head Coach

Tyson Frenn


Coach Tyson Frenn is currently in his second season as the head coach of ARC women's water polo. Tyson has been a part of ARC aquatics for several years, assisting with tournaments, championship events and alumni functions.  He was also the men’s water polo assistant coach from 2009-2010.

In Tyson’s first year at the helm of the women’s program he led the Beavers to an undefeated record in Northern California, finishing 1st at the Big 8 Conference Championships and 1st at the Northern California Regional Championships, all while earning Northern California Coach of Year honors.  The team would eventually go on to finish 3rd at the State Water Polo Championships!

Tyson was previously the head boys and girls coach at Rio Americano High School from 2011-2013.  Tyson lead the Raiders to a total of five CAL league titles and four CIF-SJS Section Championship titles!  He coached numerous all-league and all-section athletes including two CIF-SJS Players of the Year and seven HS All-Americans!

Tyson grew up swimming and playing water polo. He played under the American River College Head Men's Coach Eric Black as a club athlete and then for his first 2 years of college. He continued on to play and earn a Sociology degree from CUNY Queens College (New York, NY). From there Tyson earned his Masters degree from Concordia University (Irvine, CA) in Sport Coaching and Athletic Administration.

Tyson brings great excitement and energy to the program. He is creative and insightful in his coaching. He brings great enthusiasm to each practice creating an environment where each athlete is challenged to grow and develop daily. ARC is excited to have him in the program.

Assistant Coach

Adrienne Bisharat


Coach Adrienne Bisharat is currently in her first season with the women’s water polo program.  Adrienne played water polo and swam at ARC from 2009-2011.  As the captain of the team, Adrienne received All-Conference and All-American honors during her sophomore season. 


Adrienne began playing water polo her sophomore year at St. Francis High School (Sacramento, CA).  She played club water polo for American River WPC.  After her two years at ARC, Adrienne transferred to Sonoma State University to continue playing water polo.  During her two seasons at Sonoma State she led the team in assists and was second on the team in goals and steals!  She was also an Academic All-American both years.


Upon graduating from Sonoma State in May 2013, Adrienne went on to play professionally in Australia!  She played in the National League for the Adelaide Jets (South Australia).  Adrienne brings a wealth of knowledge and passion to the women’s program.  She has a unique perspective having played on so many different levels in the sport.  ARC is proud to have one of our own back in the program as a member of the coaching staff!