Meet our expert team

Donny Mateaki

I grew up in Honolulu Hawaii, attending Iolani High School. As an athlete who played football, basketball, and track, it was football that I really excelled in. I was blessed to receive many honors in these sports, and it was during this time that I discovered my love for working out.
I accepted an offer to play football for the University of Washington, and redshirted my first year (2002), due to a shoulder injury. I played my redshirt freshmen year and saw my first start half way through the season. I earned 2nd team Freshmen All American honors during this time, and faced a handful of trials due to injury in the coming years.

Although I was lucky to start in my position throughout all of my years at the U.W, I found that my athleticism had decreased tremendously. My upper and lower body lost a lot of strength, while my speed and vertical seemed to drop as well. After finishing my career there, I spent much of my time researching and experimenting to determine why and how this happened. As someone who has been so passionate about constant improvement in athleticism, I didn’t want anyone to go through my experience, thus helping those that I work with to get faster, stronger, quicker and never revert backwards.

Although I work with a wide variety of clientele, I have been working with athletes for nearly three years now and have helped my clients to achieve amazing results. I apply many of the same work ethics on those who are trying to achieve weight loss or maintain weight, as those who are training for their athletic endeavors. Fitness and strength training is my passion. It is not simply the element of working hard, but also being intelligent about the kind of work that is done, which will gain us the success we want to achieve.


I focus on a series of issues that help us determine together, the needs that are to be met. Beginning with weakness, moving into technique, and then further examining strength, gives both the client and I a firm foundation for training. Helping athletes to get faster and stronger is the goal we will meet, but a key component to this, is their attitude. Attitude is everything, and we will always draw back to the level of intensity and energy that they need to bring to every workout, practice and game to get the most out of their athletic experience.

Zach Foster

As a life-long resident of the Pacific Northwest, I have had the opportunity to play many sports growing up including soccer, basketball, swimming, golf, and snowboarding. At Seattle University, I was a member of the swim team from 2003-2007. In the summers, coached Triangle Swim Club and discovered my passion for coaching. It was this passion that lead me to attain my Certified Strength and Conditioning Specialist certification from the National Strength and Conditioning Association.

I have coached athletes of all levels and abilities, both in the water and in the weight room, including: Sammamish High School, Mercer Island High School, and Seattle University. After a year as an intern with Seattle University’s Strength and Conditioning Department, I became the Strength and Conditioning Coordinator for the swim team. Since I took over the program, there has been a dramatic rise in the athletes’ performance, including having the first swimmer in school history compete at the NCAA National swim meet in 2017. During that same period of time there has also been a decrease in the injury rate among the athletes.

My view is that ALL non-contact injuries are preventable with proper training and that is what I consistently strive to provide. With my extensive background in athletics and my experience as a certified practitioner in Postural Restoration I can design a program that will help anyone, athlete or not, be at their absolute best. Don’t waste any more time, sign up for a free consultation and see what we at DM Athletics can do for you!