Head Coach:  Mariska Field

Email:  [email protected]


After teaching myself how to swim in my family’s pool at 3 years old, I started club swimming at 7 and fell in love with the sport.  I swam with the Walnut Creek Swim Club for 11 years during the summers, Walnut Creek Aquabears and the Terrapins during the off seasons.  I swam all four years in High School and also competed in Water Polo for two years.

My coaching career began at college in Monterey for the Seaside Dolphins in 1996.  I married a Naval Officer in 1999, and moved to San Diego and coached there from 1999-2005, with the Scripps Ranch Tsunami Swim Team.  After this, the next duty station was Japan.  In Japan I coached with the Yokosuka Seahawks for 1.5 years.  Moving back to the Monterey area, I was able to coach with the Seaside Dolphins for three more years.

After a few years off for deployments and my masters, I began coaching in Northern Virginia in 2014 where I coached for the year-round team, OCCS, the Ashland Stingrays Summer team and for Gar Field High School in Woodbridge.  After leaving Virginia I moved to my husband’s last duty station, Stuttgart, Germany.  While there I was the assistant head coach for the Stuttgart Piranhas who were a part of the European Forces Swim League.  After leaving Stuttgart at the end of May 2019, my husband retired from the Navy after 23 years.  My husband and I and our three children moved into a home in Benicia last summer and were very excited to finally set down roots. 

I hold a Multiple Subject Teaching Credential, and a Masters in Education as a Reading Specialist and am currently a Kindergarten teacher for WCCUSD.


Assistant Coach:  Miguel Vargas

Coach Miguel is very excited to be a part of the Stingrays! He started swimming competitively in high school and continued in college where he broke a few school records, won a few championships, and competed at the national level. Today he is a coach and educator for the fitness company TRX. His favorite part about the Stingrays is watching the kids make friends, have fun, and swim fast! He looks forward to coaching and cheering for all the swimmers this season and watching their love for fitness and swimming grow!


Assistant Coach:  Emily Fade


Hi parents! My name is Emily Fade, I have been junior coaching on this team for 4 years and I previously swam for the Stingrays for 9 years. I played varsity water polo for Benicia High School all four years. I also swam for the BHS swim team for three high school seasons. I have recently committed to Saint Francis University in Pennsylvania and I have been signed onto their D1 water polo team. Swimming and working with kids is one of my biggest passions! I am a lifeguard so I am first aid, CPR, and AED certified. I look forward to meeting you and taking your child’s swimming to the next level this summer!