Jon Cox

Jon Cox is a professional ultrarunner and coach with extensive experience in trail running. He has competed in numerous ultra-marathons and has coached several athletes to success. Jon is also a certified coach and has written articles on running and training. He is known for his expertise in heart rate training and has worked with various athletes to improve their performance. Jon is a sought-after speaker and has given talks on running and coaching. He is also an avid hiker and outdoor enthusiast. Jon lives in Boulder, Colorado, USA.