Joel Peguero

2026

Giants· RHP · throws R· 11.1 IP· 2.38 ERA· 1.24 WHIP· 48 BF

Grade

How good he's been, and at what

B+77th percentile run prevention

RelieverPower Arm

Misses bats in bunches; lives with the walks.

Peguero is comfortably above average at preventing runs

The simulator expects 0.419 bases allowed per batter faced against him — better than 77th percentile of qualified pitchers. His standout tool is Quiet Contact (95th percentile). The soft spot is Strikeouts (5th percentile). Short relief stints inflate strikeout rates a touch, so read the Strikeouts spoke with that in mind.

Each spoke is a skill estimate adjusted for sample size (not raw season stats), so farther out = better.
Percentiles vs. 424 qualified pitchers — 100+ batters faced, starters and relievers pooled. He hasn't reached that bar himself, so he is measured against them rather than counted among them.
48 batters faced · data through 2026-07-29.

Plays like…

Same archetype, nearest by rate — the pitchers whose profile looks most like this one.

Pitcher type

What kind of pitcher he is, next to the league

Arsenal

What he throws, and what it does

Joel Peguero mixes his four-seam fastball (43%) and sinker (34%). His best pitch has been the sinker, saving 4.8 bases per 100 thrown vs average, and his four-seam fastball runs 4.9 mph above the league norm.

Pitch mix & swing-and-miss

What they throw, how hard, and what misses bats — from pitch tracking, regular season only.

+8 bases better than a replacement arm this season

allowed 16 bases vs a replacement arm's 24 over the same batters faced

Results

All pitches

saved 4.0 per 1005.2 saved across 130

Four-Seam Fastball

43% +10 pts vs '25

100.0 mph · lg 95.1 +0.1 mph vs '25

23% whiffs · lg 18%

saved 3.4 per 1002.5 saved across 73

Sinker

34% −1 pts vs '25

99.1 mph · lg 94.8 −0.7 mph vs '25

10% whiffs · lg 11%

saved 4.8 per 1002.7 saved across 57

Slider

23% −10 pts vs '25

93.2 mph · lg 86.9 +1.6 mph vs '25

—

Mix by batter side

How the mix shifts against lefty and righty bats. Overall results by batter side are under Platoon splits.

Four-Seam Fastball

51% vs LHH

36% vs RHH

By appearance

How the stuff has held up outing to outing

One point per outing — how his velocity, movement, and pitch mix have moved across the season, with league context for scale. Each pitch keeps the same color in every chart.

Platoon splits

How he fares against lefties and righties

Platoon splits (EB/PA allowed)

Dot = shrunk true-talent estimate; bar = 50% probable range. Tap or hover any mark for its number, or tab to a row for all of them.
Faint diamond = his raw, unshrunk rate against that side — small samples make it noisy, which is why the model pulls the dot toward a more trustworthy estimate.
These are bases allowed, so lower is better. Weighted by how often he faces each side, the two splits average back to his modeled overall EB/PA allowed — not the xEB/PA headline at the top of the page, which folds in strikeouts and walks differently.
Gray tick (marked “lg”) = league median vs that side; the faint gray band behind it spans the middle half of the league (25th–75th percentile).
Shrunk splits beat raw splits on held-out seasons, most decisively at low batters-faced counts (relievers especially), and converge with the raw numbers as exposure builds.

vs LHB21 PA0.334

vs RHB28 PA0.293

0.2510.2980.3460.3930.440

← better (fewer bases allowed)worse →

Better vs RHB than vs LHB by 0.041 EB/PA allowed (modeled).

50% probable range: +0.033 to +0.049

About the typical split for a righty arm (median 0.041). He allows less than the league median against both sides, so his weaker side is still a strength — not a hole.

Contact allowed

What hitters do when they connect

Batters go up the middle off him most often, but the hardest contact goes to the pull side.

Pull and oppo are relative to each batter's stance, so this pools all the hitters he faced.

Batted balls allowed

Where every ball hit off Joel Peguero landed this season.
Dots are colored by estimated bases (EB) — pale slate (easy out) to dark teal (home-run territory).
Filled dots are hits; hollow rings are outs — a dark ring in the outfield is a crushed ball his defense ran down.
Tap or hover a dot or a row to link the two; use the ▶ links below to watch on Baseball Savant.

hit · out

EBlowhigh

vs Spencer HorwitzDouble

EV 93 mph · LA 21° · EB 1.0

05/10 vs Pirates

vs Jose FernandezDouble

EV 91 mph · LA 1° · EB 1.0

05/25 vs D-backs

vs Jose FernandezSingle

EV 107 mph · LA 10° · EB 1.0

05/20 vs D-backs

vs Ketel MarteSingle

EV 90 mph · LA 13° · EB 0.9

05/25 vs D-backs

vs Willi CastroDouble

EV 95 mph · LA 25° · EB 0.9

05/29 vs Rockies

Luck check

Burned 2 times — balls with a hit probability under 20% that found grass anyway.

vs Derek HillSingleCheap hit

EV 79 mph · LA 5° · EB 0.1 · xBA .148

05/23 vs White Sox

Best games

His biggest outings this year

Best games

His best outings this season by bases saved vs a replacement arm.

Date	Opponent	Result	Bases allowed	Above replacement
May 23, 2026	White Sox	7 BF · 1 K, 2 H	1.3	+2.2
May 31, 2026	Rockies	8 BF · 1 K, 1 BB, 2 H	2.3	+1.8
May 5, 2026	Padres	4 BF · 0 K, 1 H	0.7	+1.3
May 6, 2026	Padres	3 BF · 1 K	0.3	+1.2
May 13, 2026	Dodgers	4 BF · 0 K, 1 BB	1.3	+0.8