Hardcore and wanna-be runners have something in common. They all have to push back against resistance in order to suit up and get out the door. Once out the door, a runner will sometimes feel invigorated by the wind in her hair and the beat of her feet on the ground, while other times, she will fight for every footfall. Regardless of experience or level of competitiveness, every runner needs three things: encouragement, sound training advice, and...