We Tried It: Precision Running Posted on August 8, 2014 by Chicago 1 Chicago Chicago News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: We tried Precision Running, a new class at Equinox that uses sprinting intervals to improve your speed as a runner. 1 Chicago Chicago News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for:
