A major release with tons of improvements and new features. For instance the totally new Speed Capacity rating that serves as an excellent complement to the Running Economy rating to be able to predict if a runner has the potential to become really, and we mean really, fast in addition to proven economy. As with all ratings in MotionMetrix, the Speed Capacity capacity has been calibrated on a group of many runners (n = 1 186), from recreational to the best. A great tool to spot speed talents, or vice versa, to find mechanical evidence why you don’t get faster even though you put down more hours on your training. We designed it as a speed meter and we like you to target the 70-90 percentile range to become a truly great long distance runner.