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Old 10-31-2019, 03:44 AM   #20
Anyone
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Join Date: Jul 2014
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Quote:
Originally Posted by KBLover View Post
Well the editor says Casteles should, basically, be Bob Gibson.

ERA and FIP are close for both, though Tatum's is almost identical (2.06 ERA, 2.05 FIP). Casteles' FIP is .04 lower than his ERA in the editor (1.55 ERA, 1.51 FIP).

But would better defense behind Casteles also lower his K/9? I would think a guy with 255 stuff is going to get K's more than anything else, even before any impact of BABIP.
To some degree (though the effect shouldn't be huge) great defense will lower a pitchers K/9. Any outs you get because a fielder made the play are chances you don't get to strike the batter out, so would lead to a better ERA but a worse K/9.

A really, really bad defense could inflate K/9's a lot actually, by keeping the inning going until the pirtcher struck guys out. But no one, including the AI, would play a defense that awful.
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