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2026
Stefan Crichton headshot

Pitcher · 2021

Stefan Crichton

Age
29
B/T
R/R
Height
6' 3"
Weight
208 lb
Born
February 29, 1992 in Houston, TX, USA
MLB debut
April 16, 2017
dbWAR
.7
4 season(s)
IP
23.1
ERA
7.33
FIP
5.44
K/9
6.6
FIP−
128
100 = avg

Stefan Crichton is a relief pitcher for the Arizona Diamondbacks. In 2021 he struck out 17 batters over 23.1 innings across 31 appearances, going 0-4. His ERA of 7.33 was 71.8% higher than the league average of 4.27 — the second worst on his team, and 546th of 567 among MLB pitchers with 20+ innings. Stripping out defence, his 5.44 FIP suggests he pitched better than his ERA shows. He missed bats on 15.4% of swings (6.7% of every pitch he threw), walked 10.3% of the batters he faced and struck out 14.5%. His -0.2 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, 2021.

FIP5.44
K/96.6
WHIP1.93
WAR-.2

Pitching

Standard and advanced, by season.

Trend
202131023.1044331917127.335.441.936.64.6172128-0.2
202026026.02252272392.423.421.198.03.154770.4
201928030.110023123383.563.311.029.82.479740.5
20178012.10002611848.034.942.435.82.9184113-0.0

Platoon splits

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

Opponent batting by the side the hitter bats from, 2021. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB393012165.400.513.533.44312.8%
vs RHB7869212612.304.372.478.36415.4%

Pitch sequencing

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

ShowBatter
SinkerCurveballChangeupFour-seam

Select a count to see exactly what Stefan Crichton throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2021.

Sinker67.5%27290.91,86739.0%14.1%
Curveball27.8%11277.72,54743.8%21.4%
Changeup4.0%1687.01,70431.3%25.0%
Stefan Crichton'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

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Stefan Crichton

Similar players

Nearest 2021 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.