Players · P · Pitcher · 2026

Austin Peterson

Cleveland Guardians American League Central

Age: 27
B/T: R/R
Height: 6' 6"
Weight: 234 lb
Number: #49

Born: September 19, 1999 in Valparaiso, IN, United States
MLB debut: September 5, 2026
Drafted: 2022, round 9
College: Connecticut

dbWAR: .1
IP: 2.0
ERA: 0.00
FIP: 0.10
K/9: 13.5
FIP−: 2

Austin Peterson is a relief pitcher for the Cleveland Guardians. In 2026 he struck out 3 batters over 2.0 innings across 1 appearance, going 0-0. His ERA of 0.00 is 100.0% lower than the league average of 4.19. Stripping out defence, his 0.10 FIP suggests the ERA was no fluke. He missed bats on 35.7% of swings (16.1% of every pitch he threw), walked 0.0% of the batters he faced and struck out 37.5%. 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.

FIP0.10

K/913.5

WHIP0.50

WAR.1

Pitching

Standard and advanced, by season.

																				Trend
2026	CLE	1	0	2.0	0	0	0	1	0	3	0	0.00	0.10	0.50	13.5	0.0	0	2	0.1	—

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.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	2	2	0	0	0	1	.000	.000	.000	.000	50.0%
vs RHB	6	6	1	0	0	2	.167	.167	.167	.149	33.3%

Pitch sequencing

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

ShowBatter

SinkerSweeperCutter

Select a count to see exactly what Austin Peterson throws in it.

Pitch arsenal

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


Sinker	35.5%	11	93.7	2,170	36.4%	20.0%	3	—	—

Austin Peterson'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

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Austin Peterson

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.