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2019 Brewers Catcher Preview: Kratz, Pina… Realmuto?

DENVER, CO - OCTOBER 07: Erik Kratz #15 of the Milwaukee Brewers celebrates near teammate Curtis Granderson #28 after scoring on a wild pitch by Scott Oberg #45 who reacts on home plate putting the Brewers up 4-0 in the sixth inning of Game Three of the National League Division Series against the Colorado Rockies at Coors Field on October 7, 2018 in Denver, Colorado. (Photo by Justin Edmonds/Getty Images)

BREW MATHs Assesses Pina & Kratz’s Value While Dreaming Realmuto Dreams…

 

BIO / OVERVIEW

Kratz:   R/R   6-4, 250lb   38 years old: MLB Debut 2010 / 3.046 Service Time

Pina:     R/R   6-0, 215lb   31 years old: MLB Debut 2011 / 4.156 Service Time

HITTING

WHY wOBA?

How Much Of Last Year Was Luck / Chance?

Let’s Consult BABIP Over Their Career To Optimize Sample Size:

Remember, BABIP tends to be a player’s ‘set point’ over their career. Unless there is a change in swing mechanics or batting stance, it is difficult to escape it after 800 plate appearances. In other words, if a lifetime 300 BABIP player has a 350 March / April, they are due for a reality check (i.e. Kratz from ’17 to ’18).

A final ‘OBP check’ makes it seem clear:

Outside of Kratz’s ‘low volume surge’ in 2017, both of these players settle to about the same point at the plate… Below average (at best). That said, one could make a case that Pina has shown slow, steady improvement over his career.

Plate Discipline

MP: Fastballs (14% whiff rate) / Breaking (28%) / Offspeed (18%)

EK: Fastballs (20% whiff rate) / Breaking (32%) / Offspeed (32%)

Overall, Pina shows better patience as a hitter & makes contact more frequently when he swings.

FIELDING

While fielding is more difficult to compare, the best way to get a relative idea of catching performance is by comparing defensive values:

Here we began to see the catchers separate more definitively. Specifically:

OTHER OPTIONS

INTERNAL: Jacob Nottingham

FREE AGENCY:

We see that the only impact player left on this board is Yasmani Grandal. However, he will not come cheap… Ramos signed a deal that averages 9.5M over two years.

TRADE:

CONCLUSIONS:

J.T. Relamuto Could Galvanize The Brewers World Series Aspirations
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