DataBaseball
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Simon Castro headshot

Pitcher · 2017

Simon Castro

Age
29
B/T
R/R
Height
6' 5"
Weight
230 lb
Number
#55
Born
April 9, 1988 in San Jose de los Llanos, Dominican Republic
MLB debut
July 5, 2013
dbWAR
.1
2 season(s)
IP
37.0
ERA
4.38
FIP
5.02
K/9
8.5
FIP−
115
100 = avg

Simon Castro is a relief pitcher for the Oakland Athletics. In 2017 he struck out 35 batters over 37.0 innings across 26 appearances, going 1-3. His ERA of 4.38 was level with the league average of 4.36 — 11th of 21 on his team, and 286th of 527 among MLB pitchers with 20+ innings. Stripping out defence, his 5.02 FIP suggests that his ERA had some help behind him. He missed bats on 18.0% of swings (7.9% of every pitch he threw), walked 9.2% of the batters he faced and struck out 22.9%. His -0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2017.

FIP5.02
K/98.5
WHIP1.24
WAR-.1

Pitching

Standard and advanced, by season.

Trend
201726037.0130321835144.385.021.248.53.4100115-0.1
201511010.1200117956.103.131.557.84.4154790.2

Platoon splits

How left- and right-handed hitters fare against him.

Opponent batting by the side the hitter bats from, 2017. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB7161113918.180.296.361.29425.4%
vs RHB8275214517.280.329.520.36020.7%

Pitch sequencing

What Simon Castro throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter
Four-seamSlider

Select a count to see exactly what Simon Castro throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2017.

Four-Seam Fastball72.9%43493.62,29246.5%15.0%
Slider26.1%15584.42,09745.2%27.3%
Simon Castro's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters.

Head to head

Put Simon Castro beside up to three others.

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Simon Castro

Similar players

Nearest 2017 seasons by command, run prevention and role, on rate statistics rather than totals.

How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.