This week, we talk about the track and field world championships. The Back to Football Run Series might be coming to a stadium near you. A sneak peek at the 20th anniversary Asics Gel Kayano. The 25 worst questions to ask a runner. We'll be at the Disneyland Half Marathon weekend. MyFitnessPal should be expanding into new markets. And as always, our week in training.

  25 Worst Questions to Ask a Runner  Track World Championships  Back to Football Run Series  Asics Kayano 20  MyFitnessPal