DataBaseball
2026
Joel Peguero headshot

Pitcher · 2026

Joel Peguero

Age
29
B/T
R/R
Height
5' 10"
Weight
195 lb
Number
#63
Born
May 5, 1997 in Santo Domingo, Dominican Republic
MLB debut
August 21, 2025
dbWAR
.3
2 season(s)
IP
11.1
ERA
2.38
FIP
3.79
K/9
4.0
FIP−
91
100 = avg

Joel Peguero is a relief pitcher for the San Francisco Giants. In 2026 he struck out 5 batters over 11.1 innings across 11 appearances, going 0-0. His ERA of 2.38 was 42.9% lower than the league average of 4.18. Stripping out defence, his 3.79 FIP suggests that his ERA had some help behind him. He missed bats on 18.1% of swings (10.1% of every pitch he threw), walked 8.3% of the batters he faced and struck out 10.4%. 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.

FIP3.79
K/94.0
WHIP1.24
WAR.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 LHB20193011.158.200.263.2075.0%
vs RHB28237034.304.429.348.36714.3%

Pitch sequencing

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

ShowBatter
Four-seamSinkerSlider

Select a count to see exactly what Joel Peguero throws in it.

Pitch arsenal

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

Four-Seam Fastball43.2%73100.02,23158.9%23.3%
Sinker33.7%5799.12,28536.8%9.7%
Slider23.1%3993.22,54535.9%20.0%
Joel Peguero'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
202611011.1000103542.383.791.244.03.257910.1
202517022.13101561782.423.851.036.93.258930.2

Head to head

Put Joel Peguero beside up to three others.

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Joel Peguero
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.