From our friend Matt Bynum at Louisville Slugger…
Aroldis Chapman’s 104 MPH fastball takes only 0.39 seconds to reach the plate assuming the 60.5 foot distance from mound to plate. Factoring in a stride of about 5 feet before the point of release, this further reduces the time to 0.36 seconds. For comparison sake, I looked up the average speed of a human’s eye blink. The average human’s eye blinks at a speed of 300 to 400 milliseconds or 3/10ths or 4/10ths of a second. So if you are the batter and you blink at the point of Chapman’s release the ball will pass you before you open your eyes again.
Also, in one full second, Chapman’s 104 MPH fastball will travel 152 feet.
Part 3, the dramatic conlcusion coming up…..