Rattler Swim Club Partners
Coaches & Directors

We are here to support your needs. If your questions are related to workouts, meets, events, goal setting, and other swimming related needs, please contact one of the coaches. For all questions related to administrative, such as dues, safety, or policy issues, please contact Coach Liz.   

The heart and soul of Rattler Swim Club (RTLR) is the passion that the coaching staff has for the sport of swimming. With over forty combined years of coaching experience as well as over fifty years of swimming experience, RTLR coaches share the same coaching philosophies that stress technique refinement and efficency.

Coaching Staff

Liz Dercks

President / Head Coach, Seniors



Liz began swimming competitively at age 8 for Chippewa Valley YMCA, represented Chippewa, St. Charles YMCA (MO) and La Crosse Family YMCA at YMCA State meets from age 8-18. 4 time YMCA Nationals Qualifier with the La Crosse YMCA Wave. She was a Dorothea Shields Award winner senior year for leadership.

Liz also swam for University of Wisconsin - Oshkosh from 1999-2003... She was a 12-time conference finalist, MVP 2002-2003, held school record in 200 fly and currently hold record in 200 breast. She graduated in 2003 with a B.S. in Psychology.

Liz began coaching at the Holmen Area Aquatic Center in 1999, coaching age group swimming until 2003. She then went on to become Head Men and Women's Swim Coach at Ripon College in 2003-2004 and was named Men's Coach of the Year for the Midwest Conference. She then moved to CA in 2005,became a student at CSU-Long Beach working towards a M.S. in Kinesiology with a Sport & Exercise Psychology emphasis all while coaching for the Irvine Novaquatics for 2 years. Spent 2007-2008 as an assistant coach at Div 1 Bucknell University in Lewisburg, PA then moved back to CA in 2008 and began coaching at Porter Valley Aquatics, now Rattler Swim Club.  Liz has also been the Head Swim Coach at Chaminade High School, Granada Hills Charter Highschool, and now Bishop Alemany Highschool.   In 2015, Liz became President and Head Coach of RATTLER Swim Club. 

Helenka Lozano

Age Group Coach


Helenka Lozano started swimming with Verdugo Park during the summers at age 6.  She loved the water so much, she joined the Burbank YMCA at age 9 and soon after was qualifying for and finaling at Junior Olympics.  At age 11, she joined the Glendale National YMCA swim team, where she continued her string of Junior Olympic success on through High School.  While in high school, Helenka set multiple school records, was a CIF Finalist, and had an impressive 3-year undefeated streak in her main event, the 50 free.
She would later earn a swimming scholarship to California State Los Angeles, where her promising swimming career would be cut short due to injury.
She has over 20 years of lessons/lifeguarding/coaching experience and was a welcome addition to the Rattler coaching staff.  She works with our Age Group swimmers on the team and her teaching knowledge and attention to detail is one of the main reasons why the Rattler age group program is as successful as it is. 
Helenka has three children, all of whom are swimmers for Rattler Swim Club of San Fernando, which gives her perspective on both sides of the fence, both as mother and coach.  She sees the importance of aquatic awareness in the San Fernando area and has been instrumental to Rattler Swim Club’s grass roots effort in the city.