About Marissa Klein

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Certifications

  • CF-L1
  • CF Kids
  • Aerobic Capacity
  • CSCS Certification

Drawing from 15 years of multi-sport coaching experience, Mar is uniquely equipped to help athletes (yes, that's you!) be strong in the gym and for life. Mar was a National Champion in her collegiate tennis career, has coached CrossFit since 2022, and holds a CF-L1, CF Kids, Aerobic Capacity, and CSCS Certification. 


Her contagious energy and attention to movement efficiency will create the best hour of your day. Whenever you hear the little voice in your head saying “I bet you can hold xyz RPM on the bike!” it may actually be Mar. She'll be your biggest hype-woman, challenging you to push yourself while also honoring your body's needs for the day.


What do you love most about Three Kings Athletics?


1000% the people!


  What is your go-to free time activity?


Anytime I get the chance, I'm out on the pickleball court!