Willie’s Blooming Power

Last season, in 192 plate appearances Willie Bloomquist recorded 46 hits, 45 of which were singles. That’s good for a batting line of .279/.377/.285, or an ISO of 0.006, one of the lowest in major league history. Naturally, Bloomquist has followed his powerless exhibition with 70 plate appearances and a .509 slugging percentage this season.

Ignore the .408 BABIP, the fact that Bloomuqist only has four extra base hits, and that his HR/FB% is well above career norms, and just focus on the sample sizes at play. Which is more likely to tell us of Willie Bloomquist’s true talent level:

A) ~70 plate appearances with a .500+ slugging
B) ~1,400 plate appearances with a .324 slugging

It seems like common sense, but sometimes our desires and optimism as fans lead us astray to the point where a few weeks’ worth of plate appearances that deviate upward from the norm cause us to start reasoning against the past. Bloomquist played at Safeco Park, which is known to sap right-handed power. The Mariners clubhouse was reportedly a miserable place last season, perhaps that affected Bloomquist as well. Maybe the Royals coaching staff is better too.

Even if you park adjust and somehow attempt and objectively credit his improved power to coaching and an improved atmosphere, you still won’t be able to add nearly 0.200 points of slugging – and if you did, you probably did it wrong. At the end of the day this is still Willie Bloomquist. The hot start is certainly going to help his end of season numbers, but the reason ZiPS projects Bloomquist to finish with a .385 slugging is not because it hates him, but because there’s an entire body of evidence suggesting against Bloomquist’s new found power stroke.