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2026
Zack Greinke headshot

Players · G · Pitcher · 2023

Zack Greinke

Age
40
B/T
R/R
Height
6' 2"
Weight
200 lb
Number
#23
Born
October 21, 1983 in Orlando, FL, United States
MLB debut
May 22, 2004
dbWAR
31.3
15 season(s)
IP
142.1
ERA
5.06
FIP
4.74
K/9
6.1
FIP−
110
100 = avg

Zack Greinke was a starting pitcher for the Kansas City Royals. In 2023 he struck out 97 batters over 142.1 innings across 30 appearances, 27 of them starts, going 2-15. His ERA of 5.06 was 16.8% higher than the league average of 4.33 — 14th of 23 on his team, and 407th of 550 among MLB pitchers with 20+ innings. Stripping out defence, his 4.74 FIP suggests he pitched better than his ERA shows. He missed bats on 17.3% of swings (8.1% of every pitch he threw), walked 3.9% of the batters he faced and struck out 16.4%. His 1.1 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, 2023.

FIP4.74
K/96.1
WHIP1.27
WAR1.1

WAR by season

5.72.80.0151617181920212223

Pitching

Standard and advanced, by season.

Trend
2023KC3027142.121501588097235.064.741.276.11.51171101.1
2022KC2626137.04901575673273.684.031.344.81.8931021.6
2021HOU3029171.0116016479120364.164.711.176.31.9971111.2
2020HOU121267.033067306794.032.801.139.01.290632.1
2019AZ/HOU3333208.2185017568187302.933.220.988.11.365715.5
2018AZ3333207.21511018174199433.213.701.088.61.977893.7
2017AZ3232202.1177017272215453.203.311.079.62.073765.1
2016AZ2626158.2137016177134414.374.121.277.62.3104982.3
2015LAD3232222.2193014841200401.662.760.848.11.642705.7

Batting

Standard and advanced, by season.

Trend
2021HOU12000001.000.000.000.000.0000.0%50.0%.000-0.5-121-0.0
2019AZ/HOU255614381212.280.308.580.300.3143.6%21.4%.364+2.01290.9
2018AZ307115053316.234.269.297.063.3134.2%22.5%.252-3.8530.7
2017AZ297013040218.210.246.274.065.2952.9%25.7%.232-5.4350.5
2016AZ25601103139.212.246.231.019.2445.0%15.0%.213-5.2250.3
2015LAD307715231114.224.232.343.119.2501.3%18.2%.248-4.2530.7

Platoon splits

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

Opponent batting by the side the hitter bats from, 2023. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB26825582141035.322.351.561.38713.1%
vs RHB32530676111362.248.280.389.28819.1%

Pitch sequencing

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

ShowBatter
Four-seamSliderChangeupSinkerCurveballCutter

Select a count to see exactly what Zack Greinke throws in it.

Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.

Four-Seam Fastball26.7%59289.52,24850.7%15.7%128.273.792
Slider20.0%44479.22,46442.6%23.1%117.214.538
Changeup16.5%36786.51,75530.5%20.7%110.236.605
Sinker15.6%34789.82,20546.1%8.2%88.330.968
Curveball14.1%31272.52,40942.6%15.5%70.3861.142
Cutter7.0%15685.22,43741.0%18.6%50.320.814
Zack Greinke'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. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

Head to head

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Zack Greinke

Similar players

Nearest 2023 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.