At the 2012 Olympics, Nick Symmonds barely missed a medal in the 800 meter race. In 2013, he won silver in the event at the World Championships, one of the highlights of his 12-year pro track career. Symmonds always looked for a legal edge, because "a 1 or 2 percent increase can be the difference" between medaling and not. (He won 13 U.S. and NCAA titles.) That quest led to Run Gum, a company he and Sam Lapray, his former coach, started in 2014 in Eugene, Oregon. Run Gum leverages one advantage Symmonds has over other runners: a biochemistry degree. He used it to create a gum that rapidly delivers a caffeine/taurine/vitamin B boost.
"I used to run about 70 miles a week, and I would double nearly every day. Now I try to get up at 5 or 6 a.m., and run from four to 10 miles at a time. That's enough to keep me sane and fit." Symmonds is seen here running (from top) in Flagstaff, Arizona; Lassen Peak, California; and Florence, Oregon. Now 34, he's added marathons and climbing to his repertoire.