Mark Diffley, SSC

Mark Diffley has been involved in barbell coaching for over a decade. He discovered Starting Strength in 2011 while coaching CrossFit and received his Starting Strength Coach credential in January of 2013. Mark has a master’s degree in mechanical engineering and was immediately hooked by the mechanical analysis and logic found in the Starting Strength method. Mark is a Brazilian Jiu Jitsu black belt and a former firefighter in the Atlanta metro area. In the Spring of 2021, he moved to Austin, TX. He was Head Coach at Starting Strength Austin from 2021-2025. Mark has worked with lifters of all ages and experience levels. He is passionate about teaching The Method and sharing the benefits of getting you stronger.