CaDad since you are the guru of speed in my estimation I have a question for you. On that chart it says that if you throw 305' it equals 90mph. Am I reading that properly? My son is throwing at his max distance now long tossing '310. He starts at 60' for 5 then 90' for 5 120' for 5 150' for 5 180' for 3 210' for 3 240' for 3 270' for 2 and 300' for 2. Then he works back in to 240' for 3 on a line as much as possible and then 210 and so on. The other day he threw his throws from 300' and hit 305' and 310' on the second. Does this really equate to him being able to throw 90? The last time I put a gun on him was from home to second- he is a catcher. He was 82. By the way it is effortless for him up to the 240' range then he really has to get into it to reach the 270' 300' range. He can throw 300' several times in a row but I make him stop because I worry about strain on the arm. He has just started pushing past the 300' mark. We use the football field. The other day he threw from the goal line and it landed in the endzone right at the 310' mark or about three or four yards in the endzone. He is only 15, last year at this time he was maxing around 270' 280'. I personally think he is around mid 80's from the hill. What do you think , doesnt that sound more realistic than 90 on that chart.