DataBaseball
2026
Shelby Miller headshot

Players · M · Pitcher · 2025

Shelby Miller

Age
35
B/T
R/R
Height
6' 3"
Weight
225 lb
Number
#77
Born
October 10, 1990 in Round Rock, TX, United States
MLB debut
September 5, 2012
Drafted
2009, round 1
High school
Brownwood
Salary, 2025
$1.25M
dbWAR
4.9
17 season(s)
IP
46.0
ERA
2.74
FIP
3.44
K/9
10.6
FIP−
83
100 = avg

Shelby Miller was a relief pitcher for the Arizona Diamondbacks. In 2025 he struck out 54 batters over 46.0 innings across 48 appearances, going 4-3. His ERA of 2.74 was 34.1% lower than the league average of 4.16 — the third best on his team, and 86th of 542 among MLB pitchers with 20+ innings. Stripping out defence, his 3.44 FIP suggests that his ERA had some help behind him. He missed bats on 31.9% of swings (16.1% of every pitch he threw), walked 8.1% of the batters he faced and struck out 29.0%. His 0.7 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, 2025.

FIP3.44
K/910.6
WHIP1.04
WAR.7

WAR by season

3.61.6-0.515161718192122232425

Pitching

Standard and advanced, by season.

Trend
2025AZ/MIL48046.04310331454152.743.441.0410.62.966830.7
2024DET51055.2682412849134.534.480.977.92.11111100.1
2023LAD36142.030119842191.713.680.909.04.140850.5
2022SF407.0010651436.430.401.2918.03.9162100.3
2021PIT/CHC13012.201016138119.247.832.135.77.8217184-0.4
2019TEX19844.0130584230298.596.401.986.15.9191142-0.5
2018AZ5416.0040241919810.696.352.0010.74.5258153-0.2
2017AZ4422.0220201020124.093.571.458.24.994820.5
2016AZ2020101.031201276970426.154.871.676.23.71471160.6
2015ATL3333205.1617018369171733.023.451.257.53.276873.6

Batting

Standard and advanced, by season.

Trend
2023LAD11000000.000.000.000.000.0000.0%0.0%.000-0.3-1250.0
2021PIT11000000.000.000.000.000.0000.0%0.0%.000-0.3-120-0.0
2019TEX23000021.000.667.000.000—66.7%33.3%.474+0.41900.1
2018AZ35001011.000.200.000.000.00020.0%20.0%.141-0.7-220.0
2017AZ49000023.000.333.000.000.00022.2%33.3%.239-0.6390.1
2016AZ19344000021.125.125.219.094.3640.0%61.8%.145-4.8-18-0.0
2015ATL32713000429.054.117.089.036.1115.6%40.8%.105-11.9-50-0.3

Platoon splits

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

Opponent batting by the side the hitter bats from, 2025. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB93791141130.139.247.304.23432.3%
vs RHB9385221424.259.312.341.28825.8%

Pitch sequencing

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

ShowBatter
Four-seamSplitterSweeperSlider

Select a count to see exactly what Shelby Miller throws in it.

Pitch arsenal

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

Four-Seam Fastball61.6%43295.22,45155.3%26.6%96.240.592
Splitter29.0%20386.91,94042.4%44.9%59.153.570
Sweeper8.4%5983.52,59749.2%27.3%7——
Shelby Miller'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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Shelby Miller

Similar players

Nearest 2025 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.