If you're looking to Download Batting Practice Assistant on your Chromebook laptop Then read the following guideline.

Batting Practice Assistant Pitch Speed Conversions Quickly find the simulated pitch speed of your batting practice session. The three variables… - Actual Pitch Speed - Distance from Pitcher to Batter (measure from pitcher’s back foot to home plate) - Simulated Pitch Speed (based on batter’s equivalent reaction time) BPA allows input of any two of the three variables to calculate the other. Calculations are based on 60 feet, 6 inches. Calculations do not take into account pitcher’s stride lengths, release point of ball, etc. NOTE… some conversion charts are based on ball travel distance rather than 60 feet, 6 inches.