BP Daily: What do spring stats mean?
Careful application can help identify surprise breakouts
The reality of the situation, however, is that these occurrences rarely portend improved play. Just because we want our favorite scrub to be capable of continuing to slug .500 for more than these four weeks does not mean he will. On the other hand, it also doesn't mean that all of the numbers accumulated in the preseason are worthless.
John Dewan, formerly of STATS, Inc. and currently the owner of Baseball Info Solutions, said that if a player were to post a preseason slugging percentage 200 points better than his career rate, you could expect the player to improve during that season. There have been studies to show that, yes, Dewan is on to something here, but the return rate on these instances is low.
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