Ali Stephens is about to kick off her third season modeling, but she's already starred in Calvin Klein and Chloé campaigns and dozens of runway shows. And before all that, the 17-year-old Salt Lake City native ran cross-country in high school for more than two years. So what better way to get to know her than going for a run in East River Park? We might have lost to her in a race or two, but we don't feel too bad about it since the chick runs a mile in 5:31. Press play to see her run like the wind and teach us her runway walk.