Dave Zapp – Head Coach, Site Director & Aquatics Director 


Dave started swimming at age 5 for the RWC Recreation Sharks and stayed with the team for 15 years. After that, he began his coaching career there after finishing his last year of swimming.  Dave also swam competitively for the Woodside Hills Aquatics year round program and captained for the Hillsdale High School swim team.  He coached with the RWC Sharks for 7 summers (Head Coaching for 5 years), and then moved on to coaching the year round swim team at Alpine Hills. His next coaching position was the Head Coach of the Covington Critters summer team and began to build the team through the SCRA year round program (the team Scott Shea, Amy Lehr, and Stephanie Fryberg started). SCRA grew and became very successful and later merged with the other programs to become PASA.  Dave has also enjoyed coaching the Crystal Springs High School team for 4 years.  For PASA, Dave has coached numerous Junior Olympic, Far Western, Western Zone Qualifiers and top 16 in the nation swimmers (a couple swimmers reaching 1st and 2nd in the nation), has had several swimmers make the National A list, and also has had multiple swimmers break Pacific & National Records.

Dave is married to his lovely wife and has 2 wonderful boys that love to swim on the PASA team.  He attended Christian Heritage College in San Diego and received a BA in Business Administration, with an emphasis on personal finance.  He played soccer and was captain 2 of his 4 years, and later went on to play soccer all around the world.

Patrick Ruden  – Prime, Speed, Racers & Pre-comp Director

Email- pgruden07@gmail.com

Patrick was born in 1988, in Cupertino and started learning swimming at the age of 3. He swam for DACA competitively for about 8 years until he joined the Monta Vista High School Varisity Swimming & Water Polo teams. His junior year he managed to make it to CCS in the 200 freestyle and 100 backstroke events. Shoulder injuries prevented him from furthering his swimming and water polo career, but he was able to keep swimming as a part of his life through teaching. 

Patrick began teaching in 2006 for the City of Cupertino's summer swim program, and during the year taught for DACA and eventually rose to the position of Assistant Deck Supervisor. Looking for a friendlier, more skill-focused swim team, he came into contact with Dave Zapp in early 2009 and found a home here at Foothills coaching Age Group swimming. 

Evi-Lynn Byer Young – Prime Coach 


Eve grew up on Stanford University campus and swam competitively through college. She started swimming for SCRA summer league team at the age of 3 and swam for PASC (now PASA) throughout high school.  Eve swam for Stanford University from 1994 -1998, where they won Pac-10 Championships all 4 years and won NCAA's in 1995, '96, and '98.  Eve also qualified for Olympic trials in 1996 in the 200 backstroke, placing 14th overall.

Eve has taught private swim lessons for ages 2 through adult and was a Head and Assistant Swim Coach at SCRA from 1992 - 2003.  She also taught elementary school (4th & 5th grade) at Slater Elementary in Mountain View from 2001 - 2004.  During the summer of 2004, Eve was the Head Coach for Covington Aquatics. Eve was no longer able to coach swimming when she took a full-time position at the Stanford Center for Professional Development (SCPD) at Stanford University.

In March 2012, Eve left her Associate Director position at SCPD to become a full-time mom. She always wanted to return coaching swimming. In 2014, Dave provided her with the opportunity and Eve was able to return to the pool deck and become a coach at Foothills!

Alex Kosaka - Speed, Sprint & Pre-Competitive 2 Coach 

Alex was born in Los Altos in 1994 and started swimming at the age of five. At age nine, Alex began swimming competitively for SCRA under Dave Zapp. Progressing through the levels, Alex established himself as a butterflyer and I.M. swimmer. In high school, he swam four years of varsity for Bellarmine College Preparatory, making finals in the 100 butterfly and 200 I.M. at CCS. Additionally, Alex played two years of J.V. water-polo and in college played club water-polo.

Alex began teaching private lessons for kids eight through twelve in high school. He began as an assistant coach for PASA in the summer of 2016. Alex is excited to be working with Dave again, this time as a coach, and hopes to bring enthusiasm and camaraderie to the program. In his free time, Alex enjoys body-surfing and playing guitar.


Emerson Shiang - Yoga Instructor