DataBaseball
2026
Jairo Iriarte headshot

Pitcher · 2024

Jairo Iriarte

Age
23
B/T
R/R
Height
6' 4"
Weight
240 lb
Number
#55
Born
December 15, 2001 in La Guaira, Venezuela
MLB debut
September 3, 2024
dbWAR
-.0
1 season(s)
IP
6.0
ERA
1.50
FIP
5.17
K/9
9.0
FIP−
127
100 = avg

Jairo Iriarte is a relief pitcher for the Chicago White Sox. In 2024 he struck out 6 batters over 6.0 innings across 6 appearances, going 0-1. His ERA of 1.50 was 63.2% lower than the league average of 4.08. Stripping out defence, his 5.17 FIP suggests that his ERA had some help behind him. He missed bats on 24.4% of swings (8.0% of every pitch he threw), walked 26.7% of the batters he faced and struck out 20.0%. His -0.0 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, 2024.

FIP5.17
K/99.0
WHIP1.83
WAR-.0

Platoon splits

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

Opponent batting by the side the hitter bats from, 2024. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB1481053.125.429.125.31821.4%
vs RHB16132033.154.313.154.24418.8%

Pitch sequencing

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

ShowBatter
Four-seamSliderChangeup

Select a count to see exactly what Jairo Iriarte throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2024.

Four-Seam Fastball46.0%6394.12,26538.1%4.8%
Slider40.1%5581.92,17943.6%47.1%
Changeup13.9%1987.21,98442.1%28.6%
Jairo Iriarte'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
2024606.001031681.505.171.839.012.037127-0.0

Head to head

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Jairo Iriarte
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.