Ground Zero Strength team

Our staff is made up of professionals with Bachelor’s and Master’s under the kinesiology and strength and conditioning umbrella, holding the most difficult to obtain strength coaching certifications in the industry (Starting Strength Coach). To our knowledge, there is no other facility like ours within the Magic Valley area. 

Our staff will make sure you will feel safe, you will be guided appropriately for your level of ability and function, and you will feel comfortable along the way.

Free Intro

The Team

Ground Zero Strength owner Sam Krapf

Sam Krapf, SSC


After starting his strength coaching career at a 24-Hour box gym and a local athletic performance training facility while coaching collegiate baseball – Sam decided he wanted to provide his hometown of Twin Falls with a gym and community centered around Strength: And Ground Zero Strength Gym in Twin Falls, Idaho was built in November of 2021. Sam coaches clients both in his gym and online with a philosophy that STRENGTH acquired through systematic barbell and free weight training can be used as a means to achieve your fitness, health and physique goals. He utilizes the Starting Strength Basic Barbell Training method and is a certified Starting Strength Coach. However, he isn’t afraid of using other training methods and principles when applicable with clients. ​ He works with a variety of lifters, from 68-year-old grandmothers to amateur powerlifters, and specializes in scaling the exercises to meet clients where they are at physically. No matter a clients’ ability, he ensures a safe progression at any skill level and finds what works to make clients stronger to help them reach their goals. Sam holds a Bachelor’s in Biology and a Master’s Degree in Sports Performance, in combination with a variety of PT and Strength Coach certifications. He earned his Starting Strength Coach credential in November 2023. He actively competes in jiu-jitsu, powerlifting and other strength sports and resides in Twin Falls with his wife Tess, his son Cooper, and resident gym dog, Hank

Ground Zero Strength coach Holly Hansing

Holly Hansing


Holly Hansing is a certified strength and conditioning specialist through the National Strength and Conditioning Association. She holds both a bachelor’s and master’s degree in Exercise Science – Health and Wellness and is currently applying to graduate schools to pursue her PhD. For the last 4 years of her career, Holly had the privilege of working for the Philadelphia Phillies baseball organization as a minor league strength and conditioning coach. Prior to her time with the Phillies she coached at both the NCAA Division I and NJCAA levels as well as in the private sector. Holly’s coaching experience spans youth level athletics to veteran Major League baseball players to military service members. She has had the honor of guiding individuals through injury and back to optimal health and performance. A responsibility and journey she never took lightly, and one that consistently demanded humility, curiosity, and a genuine desire to serve others. Holly has an unwavering passion for the human body and an utter infatuation of human movement. A loyal student to her craft, she is rooted in the notion that true health is not a pursuit, but a journey. And a lifelong one at that. Born and raised right here in the Magic Valley, Holly is a lover of all things coffee and mountains, a bad but unapologetically enthusiastic singer, and a hopeless devotee to her 9-year-old pit bull Tatty.


Ashley Montgomery


Ashley graduated from the University of Idaho with a degree in Exercise Science, specializing in Biomechanics. During her time in Moscow, she served as an intern Strength and Conditioning Coach at Washington State University, leading lifting sessions for Track & Field, Rowing, and Women’s Basketball teams and programming staff training classes. Following graduation, she returned to southern Idaho to work on her husband’s family farm. Eager to maintain her passion for physics and biomechanics, Ashley delved into the Starting Strength book, initiating her lifting journey in November of 2020. Over the past three and a half years, she has discovered the profound impact of strength on daily life and seeks to impart this knowledge to others seeking to enhance their quality of life through physical activity. Ashley actively participates in Strongman and Powerlifting competitions. When not at the gym, she enjoys walking her big white dog, Targhee, assisting her husband, Jason, on the farm, and skiing high-mountain powder, especially after a fresh snowfall.


Getting Stronger starts here.