Every year a prospect emerges in Reading and puts up huge numbers that excite Phillies fans. Sometimes those players sustain their surprise, but more times that not, the player fades off to mediocrity. For this study I took 18 players that played for Reading in the past 6 years. Those players were Cameron Rupp, Darin Ruf, Derrick Mitchell, Leandro Castro, Cody Asche, Matt Rizzotti, Jim Murphy, Mike Costanzo, Jason Donald, Lou Marson, Freddy Galvis, Cesar Hernandez, Sebastian Valle, Maikel Franco, Tuffy Gosewisch, Michael Taylor, Steve Susdorf, and Domonic Brown. All players were chosen for playing both Clearwater and Reading, and in all but two cases in Lehigh Valley. The sample sizes across the levels are not equal and individual stats may not have stabilized enough to make individual declarations at this time.
In terms of stats, I started with the triple flash lines (batting average, on base percentage, and slugging) and their derivatives (OPS, ISO, BABIP). Then I looked at defense independent statistics, strikeout percent, walk percent, and home runs per plate appearance. Lastly in cases where batted ball data existed (seasons 2011 or later), that data has been included. Additionally the age of each prospect was recorded. In cases of multiple seasons at a level, I first looked for the larger sample size, if not, then the season preceding the promotion to Lehigh Valley. In terms of aggregate numbers I am looking at pure unweighted averages of rate stats and percentages, this is an effort to weight each player equally. Continue reading The Reading Mirage: Hitting Overview