2020 Las Trampas Swim Team 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 one of the directors.

Swim Team Directors

Robin Mathers and Marisa Canoles



Head Coach

Andrew Preston, Head Coach

I am very pleased and thankful to return to LT for a seventh year as Head Coach. It is also with great joy that I share we have been selected by the 2020 Species Selection Committee as the newest species of Seahorse: Hippocampus Las Trampas. Criteria used for consideration included our ability to move up the league top time rankings, the speed we use to race our opponents, the racing skills (starts, breakouts, turns and finishes) we have mastered, and our capability to finish a race ahead of the clock (a popped time).

I have coached competitive swimming for twenty years (recreation, USS, high school, and masters), and am confident that the goals I've established for the upcoming season will be achieved. These include, but are not limited to, the establishment of an environment in which everyone views themselves (and each other) as successful; enjoys being part of practice--and misses practice when not present; and experiences notable improvements in all areas of competitive swimming (stroke mechanics, racing skills, fitness level, time standards, and overall rank).
I have worked with children/young adults as a basketball coach & camp counselor (St. Stephens Parish), special education teacher (mild/moderate learning disabilities K-5 & severely/emotionally disturbed 6-12), adult education teacher (GED, High School Diploma, Conversational English & Algebra), ESL instructor (Republic of Yemen), and as an instructor for the American Red Cross (CPR & First Aid).
As a competitive swimmer, I swam ten years with the Walnut Creek Aquabears where I was a Junior National qualifier. I also was a NCS finalist (top 16) for one year and finalist (top 8) for two years (YVHS), a state semi-finalist for two years (DVC), and a NCAA Division 2 qualifier (CSU-Chico).


Head Mudskipper Coach

Katrina Rynne


Assistant Coaches

Carly Coffee

Hi, my name is Carly Coffee and I am 17 years old.  I have been swimming at LT since I was 3, and I am planning on swimming all the way through high school.  My favorite strokes are backstroke and freestyle.  I go to Acalanes High School where I swim and play volleyball.  When I’m not at the pool, I like to hang out with my friends, go to the beach and eat Chipotle.

I have been a part of the LT family for my whole life, and I absolutely love it.  Everyone is so close and friendly.  I had an amazing time growing up here, and I hope I can help the younger swimmers have an even better experience than I did.  Everyone should feel welcome and included at Las Trampas.  My hope for the summer is that every swimmer has fun and and loves it so much that they want to come back next year!

Kiki Henderson


Colin Porciuncula


Nelson Rogers

It is my honor to be returning to the Las Trampas coaching staff for this season! I’ve swum with the Seahorses since I was 7 years old. Though that’s quite late compared to many of the other coaches I have had the pleasure of working with, I’ve found that through hard work and perseverance there is a place for everyone on this amazing team, and hope to help every swimmer reach their personal best (I dare to say I can now swim a 100 at age 17 faster than I could swim a 25 at age 8). I have worked at Las Trampas since I was 12 years old briefly as a preseason in-the-water helper and for the last several years an on-deck coach with Las Trampas’ finest. I throughly enjoy helping out both new and experienced swimmers learn how to improve and reach their goals. In addition to my near decade at LT, I also have swum on the varsity team at Acalanes High School for two years and have received numerous awards including MVP, and scholar athlete.

Next year, I’ll be attending Princeton University—Go Tigers! Outside of swim team, I participate in a myriad of other activities. My first novel will be published by May 2020, and ask nearly anyone who knows me what I enjoy doing and they’ll likely say- “Oh, ya… he curls”.  And it’s true! For three years, my team and I have been the top junior team in the western United States and have been honored with a spot in four U18 Curling National Championships.  We also participate in many recreational and semi-competitive competitions both regionally and throughout the US. I am also an Eagle Scout as of early 2018. For my project, a group of scouts, myself included, toured retirement communities performing jazz. Beyond these activities I am an avid pianist, and perform in state and national competitions. In the future, I hope to study a combination of music, creative writing, and economics in college.

After an arduous and edifying final year of high school, I am incredibly excited for the 2020 summer season and cannot wait to meet you. Go Seahorses!


Drew Shellen

I am so happy to once again come back to my summer family, Las Trampas, as an assistant coach! Las Trampas has been my home for more than half of my life, it’s wild to even imagine! I am now entering my 11th season as a Las Trampas swimmer, and my third year as an on-deck coach! Las Trampas has been such a huge part of my life, influencing how I view the world, making friends and creating bonds that will last me a lifetime! I cannot wait to be coaching our swimmers this summer and leading as a role model for all. I will also be attending the University of Oregon this fall, Go Ducks!


Katie Strohmeyer