Sam Krapf, SSC Sam Krapf is a Starting Strength Coach and owner of Ground Zero Strength in Twin Falls, Idaho. He trains a wide range of clients using barbell training as the foundation for fitness, performance, and real-world demands. Sam earned his Starting Strength Coach credential in November 2023. He competes in jiu-jitsu and strength sports, and each fall heads into Idaho's backcountry to hunt elk and mule deer. He lives in Twin Falls with his wife and two kids. Articles Strength for Western Big Game Hunting