WEST Coaching Staff

Nick Chevalier Head Coach / President

Nick joined WEST in September 2010. In high school, Nick swam for Don Lemieux and the Greenwood Swimming where he was a multiple time New Hampshire state champion and junior national qualifier. He went on to swim on scholarship at Marist College where he was a 6-time MAAC conference champion and still holds school records. During college, Nick began his coaching career working with the Marist Swim Club and after graduating from Marist he continued to coach the Cheshire YMCA Sea Dogs while pursuing his MBA degree. After graduate school, Nick worked with 6-time US National Team Coach Don Wagner as the Director of Community Programs and Marketing at Condors Swimming. Since joining WEST in 2010, Nick has coached swimmers to Junior Nationals, National Age Group Top 10 Rankings, NW Regional and PNS individual champions, record holders and PNS Top 10 Team finishes.

Carlene Takaki Head Age Group Coach

Carlene started coaching in 2008 to help fellow Purdue Boilermaker, Marisa Watts-Cozort found the club team Swim South Bay in the South Bay Area. Carlene coached age group up to senior swimmers there before accepting a position assisting the National Team at Santa Clara Swim Club in 2010. In 2013, she moved to Palo Alto Stanford Aquatics to head the pre-senior group of swimmers ages 13-15. She has coached swimmers through the Junior National Level, including several Pacific Swimming Outstanding and Record-Breaking swimmers and relays, with athletes consistently ranking top 10 for their age in USA Swimming.

Some of Carlene's notable coaching achievements include:

  • Western Zone Select Camp Coach, Eastern Zone Select Camp Coach
  • Active Member of the Pacific Swimming Board, representative at the USA Swimming Leadership Summit
  • ASCA Coach of the Year Nominee
  • Pacific Swimming Coaches Clinic Speaker
  • Women in Coaching Clinic Organizer and Speaker

Carlene grew up in the Bay Area and attended Presentation High School (class of 03) where she was a 3-time All-American and helped the team to a CCS victory in 2001. In her collegiate career, she started as a walk-on at Purdue University, and ended as Big Ten champion in the 200 fly and an NCAA All-American. She graduated with a degree in Fine Arts with a concentration in Jewelry and Metals and a minor in Art History. After her collegiate career, she stayed and trained at Purdue, completing her career with the 100 and 200 fly at the 2008 Olympic Trials.

In her free time, Carlene loves to work on her startup (FastSwims) SoulCycle, swim, walk, read, and spend time with her family.

Tim Senholtz General Manager, Coach

Tim joined WEST Coast Aquatics in March of 2017 after moving to the Seattle area from Missouri with his partner. During high school, Tim swam for Southern Utah Swim Association and Desert Hills High School where he was a multiple time Utah state champion. Throughout high school & college, Tim worked as a lifeguard, swim instructor, and swim coach for his club team and multiple teams where he developed a passion for aquatics and education. Throughout his time in college he experienced a variety of award winning team & learn-to-swim programs across the nation, including a season working as an ocean lifeguard in New Jersey. 

Tim went on to swim collegiately at Truman State University, where he was a conference team finalist and held a school record. He earned his degree in Visual Communications (graphic design) with a minor in photography.

Since joining WEST, Tim has helped WEST earn a spot on ASCA’s Top 100 USA Age Group Teams in 2020, ranking 58th in the country as determined by the USA Swimming National Rankings for 9-10s and 11-12 year olds. He has coached swimmers to PNS individual championships, and served as the Girls 11-12 PNS Western Zone Assistant Coach in 2018 and is active with PNS’s Diversity, Equity and Inclusion committee.

Tim is WEST’s General Manager where he oversees the team and lessons program operations. He is one of the age group coaches that works with a variety of groups, and directly with the Discover group.

Andrew Winquist Age Group Coach

Andrew joined WEST in September of 2021. As a swimmer, Andrew started at 14 and quickly became facinated with the sport. Through his high school years he climbed his way from barely being a part of varsity to placing top 8 at Washington state his junior and Senior years. After highschool Andrew quickly started his coaching career with swimming lessons, and quickly added on coaching for highschool and club teams. Andrew held three jobs for 7 years teaching lessons, and coaching for the club and highschool teams he swam for previously.

Starting as a swim instructor at the Stillaguamish Athletic Club, Andrew quickly became the most popular instructor at the club because of his passion for the sport. He quickly realized his gift for instructing and interacting with kids and started to look for more ways to do what he loves and expand his coaching career. He continued teaching private lessons here for 9 years.

Andrew then started coaching for his high school team at Marysville Pilchuck High School, where he had the job of taking brand new swimmers and introducing them to the sport. Here he was able to find his voice as a coach and inspired many high school swimmers to love the sport as well. He also assisted the head coach in preparing swimmers for their district/state meets. Andrew spent 8 years with the boy's team and 2 years with the girl's team.

As a club coach at the Mighty Marlins he worked with swimmers from the ground up, coaching kids straight out of lessons to swimmers who are PNS and sectional qualifiers. At the Marlins Andrew coached the 12 and under group for 7 years and was able to let his creativity and passion foster with a group of swimmers where he was their primary coach. Andrew lead several programs at the Marlins over his years including: The summer team, an open water group during the pandemic, A dryland training group, and he would even fill in as a swimmer for their senior group at times.

Andrew is WEST's Challenge Age Group Coach & oversees facility maintenance.

Mariana Dominguez Developmental Coach

Mariana joined WEST Coast Aquatics in February of 2020. 

When Mariana joined WEST she started working as a swim instructor, and in September of the same year, she started coaching one of the Pre-competition groups, Embark, Explore, SwimFit program and became a lifeguard. In the summer of 2021 she also worked with the Summer swim Team and assisted Coach Tim with Disco and Challenge groups. 

As a swimmer Mariana started swimming in Mexico at the age of 10. She swam for 8 years for IMSS club Morelia. After graduating from High school Mariana went on to swim collegiately at Technological Institute of Morelia to pursue her Business Management degree. While attending College Mariana assisted the water-polo's team Coach of her University and worked as a swim instructor at a small pool on the weekends. 

In August 2018 Mariana moved to the US to keep pursuing her Business Management degree and to improve and perform her passion for swimming and learning. 

In her free time, Mariana loves to go on hikes, watch movies, try new foods and spend time with her family and friends.

Theresa Trinka-Hoard Adult Swim Lessons Instructor & Coach

Theresa’s passion is teaching and coaching swimming. She had a near drowning experience as a child, and feared being in the water. At the age of 39, she started learning to swim and has since completed numerous triathlons at all distances, including five Ironman competitions and other open water competitions.

Theresa teaches swimmers of all ability levels, and gets great satisfaction seeing swimmers go from being anxious getting into the water, to becoming swimmers who enjoy swimming in the pool for recreation, and for some, venturing out into open water and competing in triathlons.



* US Adult Learn to Swim Instructor Certification

* US Masters Swimming Certification Levels 1, 2, & 3

* USA Swimming Level 1 Certification

* American Red Cross Lifeguard, CPR, and AED Certified

* National Academy of Sports Medicine

Brooklynn Dixon Swim Lessons Manager

Brooklynn joined WEST Spring of 2022! She is from Wenatchee Washington and began her swimming career at the age of five and continued to swim competitively throughout high school until an injury prevented her from competing. Her goal was to find a way to continue doing something she loves and staying near the water. She has been lifeguarding and instructing for almost a decade and quickly rose to become a head swim league coach shortly after her first year. She is excited to have recently moved to Snohomish in Spring 2022 and looks forward to joining the WEST family.


Brooklynn is an avid artist, woodworker and baker in her spare time and enjoys doing anything outdoors. If you aren’t seeing her on the slopes you can catch her in the water or the hills enjoying nature.