Providing you with the knowledge you need to get better!


We have a very distinct purpose for doing what we do. That purpose is to help others shape and achieve their goals. At Flash, we help clients achieve those goals through the pursuit of mental and physical excellence.



The greatest testament to our success, is the success that our clients have experienced. We've helped countless individuals develop a love for physical fitness providing them with a strong foundation for a healthy body. We've helped turn numerous athletes into junior varsity, varsity, collegiate, and even professional athletes over the last two decades.


To help our clients discover and attain their version of total performance excellence.


Through partnerships in our community we want to help individuals, teams, schools, and other organizations develop and implement top-tier wellness programs. As highly qualified trainers, we design and adjust our workouts to get the most out of each and every one. So whether you are 100% ​healthy, nursing an injury, having a great day or a bad one, we do what is necessary to capitalize on the time you spend working out with us.

Meet Our Trainers

Derrick Smith MS, MAT, CSCS

Derrick has been training for over a decade now and has been primarily focused on young athletes and sports performance. A former NCAA football player and multi-sport high-school standout, Derrick knows how to relate to young athletes as they develop in their athletic endeavors. A member of the National Strength and Conditioning Association, Derrick is a Certified Strength and Conditioning Specialist, holds a Master’s of Science in Human Movement, and a Master of Arts in Teaching. He is also currently pursuing his PhD.


Derrick has been a basketball coach in the public school system and on the competitive circuit for almost 10 years. Derrick’s training and educational background gives him the perfect skill set for developing his clientele both physically and mentally.

Dr. Jared Smith CMES, CPT-YF, CSCS

Jared began his path to sports training at Excelsior Springs High School where he was a multi-sport All-State athlete. It was then that he realized that he wanted to someday help young athletes enjoy some of the success that he had experienced over the years. Jared went on to compete collegiately in 3 sports and afterwards played

Arena Football. At the conclusion of his football career he decided to focus on others' physical fitness goals. Jared holds 3 certifications through the American Council on Exercise (Certified Medical Exercise Specialist, Certified Personal Trainer and Youth Fitness Specialist) and is also a Certified Strength and Conditioning Specialist through the NSCA. He has an Educational Doctorate degree and is a teacher in the Liberty School District. His passion for sports performance can be seen by the countless hours he spends training and coaching. He has spent several years coaching sports such as volleyball, basketball, and track.


Greg Carbin BS, CSCS, USAW
NFL Strength Coach

Currently an assistant strength and conditioning coach with the Kansas City Chiefs, Greg Carbin helped found Flash Performance in 2010. He works with athletes in every sport but has an incredible ability to help athletes develop their strength and speed.

After a great football and track career at Jefferson City High School Greg went on to star at Missouri Western. He attended several professional tryouts after college and was eventually signed by AFL’s Kansas City Brigade thanks to an impressive 4.34 40 yd time. Greg then decided to take his knowledge to North Kansas City High School where he was an assistant varsity football and track coach.


Coaching in high school gave him the opportunity to combine two of his passions, football and training our youth. Greg has been focused on sports specific training for several years now and he has helped mold a multitude of young athletes. He served as the first ever Head Strength and Conditioning Coach at Missouri Western State University for 5 years, designing and administering workouts to all 10 of their athletic programs. He has quickly become one of the brightest young minds in the sports performance industry. Greg's wife Marian is the Head Women’s Volleyball Coach at Mo West.

Dontae Watkins BS

A former All-Conference, All-District, and All-State defensive back at Blue Springs High School, Dontae played at Missouri Western where he was a 2x All-MIAA defensive back. In 2018 Dontae spent time with the Kansas City Chiefs. 

Dontae is great with our athletes at Flash Performance as he knows just what to do with them to help them reach the next level. 

Corey Bertini

Corey is a former All-Conference, All-District and All-State multi-sport athlete from Glenwood High School in Glenwood, Iowa. After graduating, Corey played quarterback at Iowa Central Community College for two years where he was first team All-ICCAC. Corey then transferred to Missouri Western State University where he played quarterback and developed under then Head Strength and Conditioning Coach, Greg Carbin. While at Missouri Western, Corey developed a love and passion for strength and conditioning and helping others. After his playing career at Missouri Western ended, Corey then served as a Graduate Assistant Coach for Carbin’s Strength and Conditioning Staff at Missouri Western where he gained valuable experience and knowledge in the industry and training various athletes.