Last week in these pages, the author considered the most improved pitchers by projected WAR. What follows is a very similar thing, except for hitters. As noted in that first post, there are multiple ways to perform such an exercise. As in the case of that first post, I’ve chosen here to (first) calculate the average of Steamer and ZiPS’ preseason WAR projections for each player and then (second) find the difference between that figure and the average updated WAR projection. As with last week, I’ve scaled all ZiPS projections to FanGraphs’ depth-chart plate-appearance projections.
What follows are the five hitters whose end-of-season WAR projections have most improved since the beginning of the season. Projection denotes a composite Steamer and ZiPS projection. PRE denotes the player’s preseason projection; UPD, the updated projection. All figures are current as of some time in the middle of the night between Tuesday and Wednesday.
5. Mike Trout, OF, Los Angeles AL (Profile)
Projection (PRE): 663 PA, .303/.402/.529, 160 wRC+, 50 Off, 5 Def, 8.6 WAR
Projection (UPD): 685 PA, .307/.399/.542, 164 wRC+, 54 Off, 14 Def, 10.1 WAR
Notes
There are certain elements of Mike Trout’s first 100-plus plate appearances that aren’t ideal. His walk rate, for example, is nearly just half of what it was in 2013; his strikeout rate, about 50% higher. The likely explanation for both trends: Trout has made less contact thus far than in previous seasons. If certain mild concerns exist with regard to the process, less can be said about the product. Both case and point: Trout, who has led the major leagues in WAR over each of the past two seasons, is doing that same exact thing again through the first month of this one. Incredibly, after having received the highest projected WAR figures from both Steamer and ZiPS before the season, Trout has somehow managed to exceed expectations.
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