Björn Geesman is a German-based sports scientist and coach. He is also the CEO of HYCYS coaching company and co-founder of power & pace. He works with pro triathletes Patrick Lange and Kat Matthews, among other big names in endurance sports.  In this episode, Dirk and Björn dive into everything from wind tunnel testing tunnels and bike selection based on data to the importance of sports psychology to his potentially controversial approach to the "long run" — even at the professional levels of sport. He also explains how the science and data learnings from pros can relate to athletes competing in age group races and events. Yet, reminding us all that it's essential not to get lost in excessive analysis but to focus on impactful training.