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 administration, such as dues, safety, or policy issues, please contact one of the board members.

Coaching Staff

Martha Kelliher

Head Coach


I am Martha Kelliher, born and raised in Phoenix, Arizona, third child of eight born to Ed and Sheila Murphy. My education includes St. Thomas the Apostle Grade School and Xavier High School. I attended University of Arizona and Arizona State University, graduating from ASU with a Bachelor of Arts. I moved to Sierra Vista in 1986 to own and operate Arizona Southern Tire and Automotive Services, Inc., DBA Goodyear Tire and Automotive Service Center, for 11 years at 297 E. Fry Blvd. After selling this business, I married John F. Kelliher, Jr., and experienced the GREATEST blessing of my life—becoming the mother of Gracie and Katie Kelliher.

          Swimming experience—ages 4-13, Arizona Country Club swim team member; swam in high school and at the University of Arizona under Walt and Nancy Schlueter

          Present time—Thanks to SVTT, I have my first and second year coaching certifications. Most recently I obtained The American Swimming Coaches Association, Level II USA-SWIMMING certification.

          Personal philosophy—The purpose in life is to help each other get to heaven. And life is “Anything you can believe it to be.”

          Coaching philosophy—Keep your head down…focus on your own race…and never give up. I feel it is all in the details. Hence my passion for technique. I love encouraging our swimmers to believe in themselves and experience their own greatness.

          Favorite sports motto—“Practice does NOT make perfect. Practice makes PERMANENT. Perfect practice makes perfect.”

Ravilya Yakymenko



Ravilya Yakymenko was born and raised in Kazakhstan, a country in Central Asia, and started swimming at the tender age of six. She competed and participated in swim meets until graduating from high school.  Ravilya is a military spouse who has traveled the country and the world which has given her the ability to grow in diverse setting. She is a mother of three, two sons and a daughter who all share her passion for swimming. 

Ravilya began working for Sierra Vista Tsunami Swim Team in January 2018. She is certified with the American Swimming Coaches Association and has a Level 1 Swimming Certification. Coaches the Bronze and Silver levels. Her goal is to advance as a coach through more training and certification.

Ravilya feels it is important to build a partnership between coaches and swimmers and to work as a team. She wants the swimmers to be the best possible version of their self. Most of all Ravilya wants the children to enjoy the sport of swimming!

Haley Jaggers



My name is Haley Jaggers. I recently moved to Sierra Vista from central Kentucky. We moved here for my husbands job. Along with being a swim coach, I am also an esthetician and own/operate my own business. I love all things skin care related. 

I started swimming in 6th grade. Once I started swimming I couldn’t get enough of it. I swam on a USA team, high school team, and summer league. USA was by far my favorite organization to swim with. My most successful stokes have been backstroke and butterfly. After high school I continued on to the University of Kentucky where I started to play water polo. 

I’ve always had a knack for stroke structure and teaching. I’m am eager and grateful to join the team. As well all the chance that continue my swimming career in a different way and help other young swimmers achieve their goals.