DataBaseball
2026
Nick Wittgren headshot

Players · W · Pitcher · 2023

Nick Wittgren

Age
32
B/T
R/R
Height
6' 2"
Weight
215 lb
Born
May 29, 1991 in Torrance, CA, United States
MLB debut
April 19, 2016
dbWAR
2.7
9 season(s)
IP
29.0
ERA
4.97
FIP
4.36
K/9
5.6
FIP−
101
100 = avg

Nick Wittgren was a relief pitcher for the Kansas City Royals. In 2023 he struck out 18 batters over 29.0 innings across 27 appearances, going 1-0. His ERA of 4.97 was 14.6% higher than the league average of 4.33 — 13th of 23 on his team, and 393rd of 550 among MLB pitchers with 20+ innings. Stripping out defence, his 4.36 FIP suggests he pitched better than his ERA shows. He missed bats on 15.4% of swings (7.4% of every pitch he threw), walked 8.6% of the batters he faced and struck out 14.1%. 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, 2023.

FIP4.36
K/95.6
WHIP1.41
WAR.2

WAR by season

0.60.3-0.01617181920212223

Pitching

Standard and advanced, by season.

Trend
2023KC27029.0100301618114.974.361.415.63.41151010.2
2022STL29029.0101351917105.903.841.555.33.1149970.2
2021CLE60162.1291613561175.054.841.258.82.5118113-0.0
2020CLE25023.22001892863.424.421.0110.62.377990.2
2019CLE55057.2514471860152.814.171.089.42.362930.6
2018MIA32033.2210291131152.943.131.318.34.071750.5
2017MIA38042.1310462243134.683.581.399.12.8107820.6
2016MIA48051.2430501842103.143.671.167.31.775880.6

Batting

Standard and advanced, by season.

Trend
2017MIA44000001.000.000.000.000.0000.0%25.0%.000-1.1-127-0.0—

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 LHB6861151710.246.324.361.30614.7%
vs RHB605315148.283.367.453.36113.3%

Pitch sequencing

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

ShowBatter
Four-seamSliderCutterChangeupSinker

Select a count to see exactly what Nick Wittgren throws in it.

Pitch arsenal

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

Four-Seam Fastball36.7%17392.02,15243.9%11.3%45.267.810
Slider36.4%17283.02,38645.3%17.1%40.200.523
Cutter13.3%6387.42,33952.4%16.2%15.267.753
Changeup11.9%5685.01,64325.0%17.4%12——
Nick Wittgren'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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Nick Wittgren

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.