This week on Pace Per Mile we talk the Grand Rapids Marathon race director Don Kern about his world record breaking attempt at running one marathon on each of the seven continents in twenty-five days. During our nutrition segment Chris and Jennifer discuss why supplements as part of our training diet are important and in gear and technology Steve talks about his recent experience at The Running Event trade-show and conference. On training with Kevin, he answers a listeners questions regarding how important it is to cross-train as part of your endurance activities. Finally, on the flip-side of the show we talk with Endorphin Dude Tony Nguyen who recently lost weight, trained and finished his goal of running fifty-two marathons in fifty-two weeks.