Description

The FeXY VDOT App calculates training paces and predicts running race times based on the formulas presented in Jack Daniel's "Daniel's Running Formula," one of the most respected books on run training.

Runners and Triathletes know that speed work on the track is an important part of any training plan. The Jack Daniel's track program is a proven and highly respected way to improve any running performance. Traditionally, users had to carry around his book or copies of the pacing table