DataBaseball
2026
George Klassen headshot

Players · K · Pitcher · 2026

George Klassen

Age
24
B/T
R/R
Height
6' 2"
Weight
195 lb
Number
#58
Born
January 26, 2002 in West Bend, WI, United States
MLB debut
April 5, 2026
Drafted
2023, round 6
College
Minnesota
High school
Port Washington
dbWAR
.1
1 season(s)
IP
27.0
ERA
3.67
FIP
4.73
K/9
8.0
FIP−
113
100 = avg

George Klassen is a starting pitcher for the Los Angeles Angels. In 2026 he struck out 24 batters over 27.0 innings across 6 appearances, 6 of them starts, going 2-2. His ERA of 3.67 is 12.2% lower than the league average of 4.18 — 9th of 21 on his team, and 198th of 538 among MLB pitchers with 20+ innings. Stripping out defence, his 4.73 FIP suggests that his ERA had some help behind him. He missed bats on 31.3% of swings (14.3% of every pitch he threw), walked 16.8% of the batters he faced and struck out 19.2%. 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, 2026.

FIP4.73
K/98.0
WHIP1.63
WAR.1

Pitching

Standard and advanced, by season.

Trend
2026LAA6627.0220231124213.674.731.638.07.0881130.1—

Platoon splits

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

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB7464171814.266.351.359.32418.9%
vs RHB5138611310.158.373.263.31919.6%

Pitch sequencing

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

ShowBatter
Four-seamSliderChangeupSinkerCurveball

Select a count to see exactly what George Klassen throws in it.

Pitch arsenal

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

Four-Seam Fastball39.3%19396.42,32140.9%23.8%36.250.762
Slider31.4%15490.72,28349.4%45.7%40.125.405
Changeup17.1%8487.01,52236.9%24.4%18.3891.032
Sinker7.9%3996.82,30343.6%13.3%6——
Curveball4.3%2185.22,44828.6%28.6%3——
George Klassen'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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George Klassen

Similar players

Nearest 2026 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.