Complete Performance Coaching is a team of highly skilled Performance Coaches.

We each specialize in different sports, and offer unique strengths that will allow you or your child to reach peak performance + maximum enjoyment.


We believe that examining the stories we tell ourselves, and taking a look from different angles, can change everything.

Maybe you’re a gymnast with a fear of going backwards.  A swimmer who can’t seem to go any faster.  Or a parent who is clueless about how to help your child succeed.  

We can help.  

Most of our clients start to see amazing results after just a few sessions.  Many feel more confident and less anxious after just the first phone call.



Rebecca Smith, MA

The Founder and Director of Complete Performance Coaching, Rebecca has a Masters Degree in Sport Psychology, and she has been helping high achievers thrive under pressure for over 15 years.

“I specialize in work with athletes age 8-18 on overcoming fear and anxiety.  As a perfectionist gymnast, I struggled with my own demons.  Then I coached gymnastics, and still couldn’t figure out how to get kids through the mental blocks.  Now, I’m passionate about the science of the mind-body connection.  

I’ve come up with a step-by-step way to help young athletes break through fear and anxiety, build confidence, and find their flow, fast.”  

I work with individuals and teams from all over the US and the world via Skype or FaceTime.  I also meet clients face-to-face in Northern California.

To see if working with Rebecca is a fit for you or your child, let’s chat!  

Schedule a FREE Consultation with Rebecca


Diana Lattimore, PhD, CMPC

Diana is passionate about helping athletes find their confidence and inner strength in order to play and compete at their very best. Although Diana participated in three sports as a young girl, she put her basketball uniform and track shoes away in middle school to focus solely on gymnastics. Diana went on to compete at a Division I university, and despite a major injury her freshman year that sidelined her for over 13 months, she was able to come back to finish a great collegiate gymnastics career.

That injury paved the way to her career in Sport Psychology where she has been helping athletes for the past 10 years gain mental strength to not only get back in the sports they love, but also thrive in them.

Diana works with individual athletes as well as teams, specializing in working with injured athletes and those athletes who have lost their confidence along the way. She is a certified mental performance coach, an associate professor, National-rated gymnastics judge, and still an athlete at heart. Diana holds an undergraduate degree in Psychology, a master’s degree in Exercise & Sport Science with a specialization in Sport Psychology, and a PhD in Exercise Science.

To see if working with Diana is a fit for you or your child, let’s chat!  

Schedule a FREE consultation with Coach Diana


Sara Robinson, MA

Sara Robinson, MA, has worked as a Mental Skills Coach for over a decade. She has worked with recreational and competitive athletes, ages 7 to adult, in just about every sport, but works primarily with competitive gymnasts, cheerleaders, swimmers, and soccer players. She consults with individual athletes and teams, as well as presents to coaches and parents about mental skills to best support their athletes.

Sara believes every athlete and performer can benefit from mental skills training, and introduces techniques and strategies in ways that are fun, interesting, and appropriate to the client’s age and sport. She loves teaching clients new skills, supporting their goals, and helping achieve more consistent performance.

In addition to consulting, Sara is a freelance writer, contributing to sites like SportKid Live, The LPGA Network, RunSmart Online, and the Positive Routines blog. She is a former faculty member and supervisor for John F. Kennedy University’s Sport Psychology Department and is an editor and author for the book Excelling in Sport Psychology: Planning, Preparing, and Executing Applied Work.

To see if working with Sara is a fit for you or your child, let’s chat!  

Schedule a FREE Consultation with Sara


Ashley Relf, MA

A former Elite gymnast, professional soccer player, and ironman triathlete, Ashley lives the program both as a coach and as an athlete every day.

She studied how to increase performance at John F. Kennedy University and San Francisco State University. She holds a MA in Sport Psychology, BA in Communication Studies, and a Certificate in Exercise & Sport Performance.

“Ashley has the rare, and necessary, ability to focus on the individuals who she is working with. She listens to her athletes in a clear and sympathetic manner. Once an athlete talks to her, Ashley is able to help that athlete find the right steps to take to enhance performance and reach a better understanding of her or his strengths and weaknesses and what needs to be done to move forward. The athletes who work with her trust her. They know that she is giving them solid advice and is respectful of their feelings (their doubts, their ambitions).”

– Coach Jeff Gardiner (VMware / Lick-Wilmerding High School)

To see if working with Ashley is a fit for you or your child, let’s chat!  

Schedule a FREE Consultation with Ashley


Jimmy Yoo, MA

Jimmy has always been passionate about working with athletes.  As a coach, it was apparent early on that teaching athletes the mental aspects of sport was important to help them excel on and off the playing field.  As a youth, Jimmy participated in sports that included soccer, floor hockey, performance unicycling, football, golf, and wrestling.  In high school, he was a three-sport athlete participating in football, wrestling, and lacrosse.  He then went on to play lacrosse in college.   Currently, Jimmy has 20+ years of experience as youth, high school, and travel team lacrosse coach.

Jimmy has been working with athletes and teams at a High Performance Coach since 2010, since earning his M.A. in Sport Psychology from San Diego University for Integrative Studies in California. He specializes in peak performance, and works with athletes who perform in highly competitive environments where focus, split-second decision-making, and confidence are key factors for success.

Jimmy’s mission is to help athletes successfully perform under pressure.  To do this, he has created a performance model that allows athletes to maximize their potential and consistently perform at their best in competitive environments.  He combines advanced scientific methods specific to the field of sport psychology along with his personal experiences as an athlete, coach, and mentor to provide an approach that is based on a peak performance mindset.  The result is a performance plan that allows a person to train by fully engaging both mind and body toward their personal best.

To see if working with Jimmy is a fit for you or your child, let’s chat!  

Schedule a FREE Consultation with Jimmy