DataBaseball
2026
Caleb Thielbar headshot

Pitcher · 2026

Caleb Thielbar

Age
39
B/T
R/L
Height
6' 0"
Weight
205 lb
Number
#24
Born
January 31, 1987 in Northfield, MN, USA
MLB debut
May 20, 2013
Drafted
2009, round 18
College
South Dakota State
High school
Randolph
Salary, 2026
$4M
dbWAR
1.0
3 season(s)
IP
35.2
ERA
5.30
FIP
5.36
K/9
11.1
FIP−
128
100 = avg

Caleb Thielbar is a relief pitcher for the Chicago Cubs. In 2026 he struck out 44 batters over 35.2 innings across 42 appearances, going 3-2. His ERA of 5.30 was 26.9% higher than the league average of 4.18 — 12th of 14 on his team, and 381st of 467 among MLB pitchers with 20+ innings. Stripping out defence, his 5.36 FIP suggests the ERA was no fluke. He missed bats on 28.3% of swings (14.8% of every pitch he threw), walked 8.4% of the batters he faced and struck out 28.6%. His -0.3 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.

FIP5.36
K/911.1
WHIP1.35
WAR-.3

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 LHB6157164314.281.317.526.35523.0%
vs RHB9283196930.229.304.482.33632.6%

Pitch sequencing

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

ShowBatter
Four-seamCurveballSliderSweeper

Select a count to see exactly what Caleb Thielbar throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2026.

Four-Seam Fastball40.3%25493.32,31153.5%23.6%
Curveball26.2%16576.32,58950.3%29.7%
Slider21.4%13587.52,30550.4%35.2%
Sweeper12.1%7680.32,48753.9%30.6%
Caleb Thielbar'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.

Pitching

Standard and advanced, by season.

Trend
202642035.2323352144135.305.361.3511.13.3127128-0.3
202567058.0341381756132.643.000.888.72.063721.1
202459047.1243502853245.324.101.5610.14.61311000.2

Head to head

Put Caleb Thielbar beside up to three others.

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Caleb Thielbar

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.