Tina Kefalas
Smart Training Intensity Distribution Models for Amateurs
Discover how pyramidal and polarized training models help amateur runners boost endurance, balance intensity, and train smarter—not harder.
Coach Spotlight: Michael van der Klei – Building Community, Mile by Mile
On the Thursday before the 2025 Spartathlon, we met up with EndoGusto coach Michael van der Klei—an accomplished ultrarunner who had traveled to Greece to toe the line.
The Athens Marathon. The Authentic – A Pacing Strategy for the Ages
Millions of marathon runners worldwide challenge themselves annually. It is the Athens Marathon. The Authentic
Athlete Motivation & Online Coaching
The rise of online coaching has transformed how athletes train and interact with their coaches.