Coaches & Directors

2019 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
Andy Uffelman

Coaches & Bios

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 2019 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).
I am currently employed with the Mt. Diablo Unified School District as a teacher of a moderate special education class (grades 6-8). The ability to organize and prioritize information and to make meaningful social connections is a challenge for many of my students. I was born in Preston, England, have traveled in thirty countries, collect stamps, am married and enjoy two daughters.

Rachel Koenigsberg, Assistant Coach

Having been a member of Las Trampas since I was 3 years old, it is my pleasure to be returning this summer as a coach once again! Each year I come back feels like reuniting with family, and it is my personal joy to be a part of that experience for both new and returning swimmers. Teaching these kids not only the joys of swimming, but also how rewarding diligence and commitment can be, has been some of the most fulfilling work of my life, and I am so grateful for the opportunity to continue doing so.


I am graduating from Campolindo this year, and will be a student at Cal Poly, San Luis Obispo in the fall majoring in Cellular and Molecular Biology. In high school I've been on the varsity swim team and a member of Campo’s Chamber Singers and Bel Canto choir groups, and I have been doing karate since I was 8 years old. I was a scholar athlete all four years of high school, and received the CSF Lifetime award my senior year. While I have participated in many other activities over the years, swimming has always been a constant in my life, and I hope to instill the same commitment in the swimmers I have the honor of coaching this summer.

Nelson Rogers, Assistant Coach

It is my honor to be returning to the Las Trampas coaching staff for this season! I’ve swam with the Seahorses since I was seven years old. Though that’s quite late compared to many of the other coaches I have received  the pleasure of working with, I’ve found the through hard work and perseverance that 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 thoroughly 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 swam on the varsity team at Acalanes High School for two years and have received numerous awards including MVP, and scholar athlete.

Outside of swim team, I participate in a myriad of other activities. 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 have been honored with a spot in three 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 philosophy and economics in college.

After an arduous and edifying year of high school, I am incredibly excited for the 2019 summer season and cannot wait to meet you. Go Seahorses!

Carly Coffee, Assistant Coach

Hi, my name is Carly Coffee and I am 16 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 for the Dons as well.  I spend my summers at the pool and playing beach volleyball.

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 more amazing 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!

Katie Strohmeyer, Assistant Coach

When you hear summer home, many people think of Tahoe. I, and most other seahorses, think of Las Trampas. LT has been my home since I was a mudskipper, when all I thought about was how when I was older, I wanted to be coach just like the ones I had. This year I’m so proud to finally achieve this dream in full! I’ve worked at the pool since I was 12, first as an in-the-water helper, as a mudskipper coach for 2 years, and then as a junior assistant coach last year. There, I got to dip my toes into coaching, focusing on small group and individual swimming development with the adorable 6 & unders. This year I’m so excited to work with more age-groups and help them find personal success and a warm and welcoming atmosphere where kids are excited to come to practice. And, of course, get that pop-time towel! I’m also stoked to be on the spirit/social team this year, with my personal focus to make connections with each of my seahorse teammates and make sure everyone has their best summer yet.

I am a rising junior at Campolindo High School, and a proud member of the Cross Country and Track & Field team, where I’ve earned Most Inspirational and Most Improved. I am super proud of these because they represent my personal values regarding sports. I have never been a county swimmer, but at Las Trampas I’ve been just as coached, supported and cheered on as anyone else. This quality is what makes our team so great. 

Beyond sports, I’m a Girl Scout Senior as well as Event Coordinator for my Youth & Government delegation. I am also involved in Campo’s Orchestra where I play viola.
I can’t wait for this summer! After all, on the land or in the pool Las Trampas is really cool. 

Drew Shellen, Assistant Coach 

I am so happy to once again come back to my summer family, Las Trampas, now as an assistant coach! I have always dreamed about being an assistant coach, ever since I started swimming for the seahorses when I was only 8 years old! Las Trampas has been my home for more than half of my life, it’s wild to even imagine! I am now entering my 10th season as a Las Trampas swimmer, and my second 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!  

Kiki Henderson, Assistant Coach 

I started swimming at MTSC, then moved to MCC, Miramonte, and then came to Las Trampas three years ago.  I appreciate the sense fo family that Las Trampas emits which is why I love coaching; I get to bond with everyone!  I also practice and coach gymnastics.  I go to Campolindo and am currently in 10th grade.

Colin Porciuncula, Junior Coach

I started swimming competitively for the first time when I was 14 at Las Trampas, which is really late compared to most who started swimming around the age of six. Over the next three years, I quickly caught up to my fellow swimmers and I am now currently one of the top butterfly swimmers on the team. I also swam for Acalanes High School on JV and just made Varsity this season. This Is my first season coaching for Las Trampas and my goal is to teach the techniques I have learned from my swimming experience to help everyone on the team improve their swimming. 

Aside from swimming, I love to spend my time doing volunteer work through the Boy Scouts of America, I also recently completed my Eagle Scout rank and hope to use the leadership skills I have learned to be an amazing coach.

Katrina Rynne, Mudskipper Head Coach

My name is Katrina Rynne and I have been swimming at Las Trampas since I was four years old.  It doesn't feel like I have been with Las Trampas over 16 years, but time flies when you're having fun!  I attended Acalanes High School and have just completed my sophomore year at Chico State.  I began helping out the LT coaches as an ‘in-the-water-helper’ when I was in middle school and absolutely loved it.  Not only because of the youngsters but for the opportunity to hang out with the ‘big kids’.  Now I am officially one of those ‘big kids’ although it doesn't always feel like it!  Being the Head Mudskipper coach is definitely the coolest job at the pool because nearly every swimmer passes through the program and I always hope my name will be remembered in their future when they start to bring in the gold medals.  As a fun bonus, I get to work with an awesome group of middle school and high schoolers who keep me up to date on the hottest gossip.  Having the opportunity to hang out with my LT family all summer long is something I look forward to throughout the school year and I hope future seahorses grow up in the same amazing environment I did!