Players · S · Pitcher · 2026

Justin Sterner

Age: 30
B/T: R/R
Height: 6' 1"
Weight: 215 lb
Number: #60

Born: August 29, 1996 in La Jolla, CA, United States
MLB debut: May 31, 2024
College: Brigham Young

dbWAR: .2
IP: 42.2
ERA: 6.12
FIP: 5.49
K/9: 8.4
FIP−: 131

Justin Sterner is a relief pitcher for the Athletics. In 2026 he struck out 40 batters over 42.2 innings across 46 appearances, going 2-3. His ERA of 6.12 is 46.4% higher than the league average of 4.18 — 15th of 18 on his team, and 493rd of 538 among MLB pitchers with 20+ innings. Stripping out defence, his 5.49 FIP suggests he pitched better than his ERA shows. He missed bats on 29.9% of swings (15.6% of every pitch he threw), walked 7.1% of the batters he faced and struck out 21.7%. 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.

FIP5.49

K/98.4

WHIP1.38

WAR-.3

WAR by season

Pitching

Standard and advanced, by season.


2026	ATH	46	0	42.2	2	3	1	46	29	40	13	6.12	5.49	1.38	8.4	2.7	146	131	-0.3
2025	ATH	59	1	65.0	4	3	0	47	23	70	21	3.18	4.27	1.05	9.7	2.9	77	103	0.4
2024	TB	2	0	4.0	0	0	0	5	1	4	1	2.25	1.92	1.50	9.0	2.3	55	47	0.1

Platoon splits

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

Season

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.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	87	79	19	4	6	18	.241	.291	.430	.308	20.7%
vs RHB	97	89	27	7	7	22	.303	.351	.607	.405	22.7%

Pitch sequencing

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

ShowBatter

Four-seamCutterSweeper

Select a count to see exactly what Justin Sterner throws in it.

Pitch arsenal

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

Season


Four-Seam Fastball	39.5%	287	93.5	2,340	49.1%	20.5%	63	.286	.897
Cutter	30.9%	224	88.7	2,630	47.3%	31.2%	60	.333	.919
Sweeper	29.6%	215	81.4	2,710	40.5%	43.3%	45	.178	.658

Justin Sterner'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

Put Justin Sterner beside up to three others.

Compare — add up to 3 more players

Justin Sterner

Or read one already written — Justin Sterner against:

Similar players

Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.

Tyler ZuberMIA

ERA: 5.67
FIP: 5.25
SO: 42
WAR: -0.3

Very close

Mitchell ParkerWSH

ERA: 6.58
FIP: 5.47
SO: 34
WAR: -0.3

Very close

Robby AhlstromTEX

ERA: 6.08
FIP: 5.18
SO: 34
WAR: -0.2

Beau BrieskeDET

ERA: 4.76
FIP: 4.91
SO: 21
WAR: -0.1

Comparable

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.