Hillary Boos, the new head women's water polo and dive and swim coach, has spent over 20 years in coaching and 17 years in education. In addition to being a full-time instructor at Sanger High School in the Fine Arts Department, she has coached at various levels including age group, club and high school. Not only does Boos have 16 years of coaching aquatic experience at the high school level, she has also helped guide her teams to 17 league championships, two Swimmer of the Year titles, and over 7 league MVPs. Her overall record at the high school level is 232-64.

Boos is the founder of the Rebel Water Polo Club and created the Shaver Lake Open Water Polo Tournament. She has also taken several water polo teams to the Junior Olympics, Hawaii and Croatia to compete. Boos has been admitted to the Master's in Kinesiology: Physical Education Emphasis program at Fresno Pacific and will begin in the Fall of 2021.

Boos played water polo at California State University, Bakersfield. Collegiately, she was named a two-time First Team All-Conference, All American and three times team MVP.