Mark was a 3-time member of Team USA in the Men's Decathlon 2010-2011. His background as a decathlete inspired him to pursue a career in health and fitness. In Berkeley, Mark has a private training studio and is a Nike Running Coach for the SF Nike+ Run Club. His training philosophy includes: lifestyle management, mental focus, and exercise and nutrition education. His certifications include CSCS, SFG1, and USATF1.