Dan King is one fit executive. Now he has the title to prove it, and Playworks Denver has $27,500 to celebrate it. The CEO of ReadyTalk, headquartered in Denver, earned the title of World's Fittest CEO by winning the CEO Endurance World Championship in North Carolina last month. King not only swept the over 50 division, he beat out 17 other CEOs from around the country to earn overall title, which ended with a tough 6-mile cross country run with six water crossings and six four-foot barriers. King donated the $27,500 he raised for charity to Playworks in Denver, where it will be used to support play and recess for thousands of students.