Shane Zenman Eversfield is a Total Immersion Swim Master Coach (one of twelve worldwide). He is an author, dancer, and ultra athlete who founded and developed the methodology and content for Zendurance Cycling endorsed by ChiRunning Founder Danny Dreyer, and Total Immersion Swim Founder Terry Laughlin. Eversfield teaches over 200 classes and clinics every year in swimming, cycling, running and Kaizen Skills: Fitness For Your Life. Among many other events, he completed the Hawaii Ironman. Since then, he has completed double and triple irons, ultramans, and ultra runs up to 100 miles.