Jeff Grant   Hillseeker Fitness GmbH

Mountain & ultra running, running technique, mountain cycling (road & MTB), Endurance and Ultra Endurance event prep, CrossFit and CrossFit Endurance, SEALFIT, endurance mindset and mental toughness

Specializing in fitness transformation and coaching for endurance athletes, Endurance Athletes (Runners, Cyclists, Triathletes, Adventure Racers, XC Skiers, etc.) Services include online coaching and in-person training, camps and seminars in Switzerland.


Jeff Grant is a coach, ultra-endurance athlete and a hillseeker in all walks of life. While his primary mission now is coaching both athletes and people making the key lifestyle transformation to healthy living, Jeff has lived out a series of adventures since making his own transformation in the mid-90s.

This includes finishing 5 ultra-distance triathlons, including the 2000 Ironman World Championship in Hawaii and the 2007 Inferno in the Swiss Alps. He has also completed numerous marathons and ultra marathons, including a top-50 overall and second-place American finish in the 2008 Marathon des Sables 155 mile run in the Sahara Desert and a 37-hour, 100-mile Ultra Trail du Mont Blanc race in Chamonix, France in 2009. Jeff's ultimate test of mental toughness was completion of the U.S. Navy SEAL-inspired SEALFit Kokoro Camp in 2010. The Kokoro Camp is a grueling 50-hour crucible that tests a warrior athlete's fitness and mental toughness to the extreme.



Preferred Athlete Levels

Beginner, Intermediate, Advanced


1-on-1 Coaching, Consultations, Remote Coaching, Mental Skills, Run Analysis

Sport Types

Triathlon, Road Cycling, Running, IRONMAN, Swimming, Personal Training, Cross Country Skiing, Mountaineering, Adventure Racing, Corporate Wellness


English, German


Seestrasse 81