Players · S · Pitcher · 2023

Trevor Stephan

Cleveland Guardians American League Central

Age: 28
B/T: R/R
Height: 6' 5"
Weight: 225 lb
Number: #37

Born: November 25, 1995 in Magnolia, TX, United States
MLB debut: April 3, 2021

dbWAR: 2.2
IP: 68.2
ERA: 4.06
FIP: 3.56
K/9: 9.8
FIP−: 82

Trevor Stephan was a relief pitcher for the Cleveland Guardians. In 2023 he struck out 75 batters over 68.2 innings across 71 appearances, going 7-7. His ERA of 4.06 was 6.2% lower than the league average of 4.33 — 12th of 18 on his team, and 250th of 550 among MLB pitchers with 20+ innings. Stripping out defence, his 3.56 FIP suggests he pitched better than his ERA shows. He missed bats on 30.6% of swings (15.2% of every pitch he threw), walked 8.8% of the batters he faced and struck out 25.5%. His 1.0 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, 2023.

FIP3.56

K/99.8

WHIP1.30

WAR1.0

WAR by season

Pitching

Standard and advanced, by season.


2023	CLE	71	68.2	7	7	2	63	31	75	26	4.06	3.56	1.30	9.8	3.4	94	82	1.0
2022	CLE	66	63.2	6	5	3	57	19	82	18	2.69	2.19	1.18	11.6	2.5	68	55	1.7
2021	CLE	43	63.1	3	1	1	58	31	75	31	4.41	5.49	1.41	10.7	4.4	103	129	-0.5

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2023. 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	132	114	27	1	16	34	.237	.328	.333	.297	25.8%
vs RHB	162	143	36	5	10	41	.252	.319	.434	.326	25.3%

Pitch sequencing

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

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Four-seamSplitterSlider

Select a count to see exactly what Trevor Stephan throws in it.

Pitch arsenal

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

Season


Four-Seam Fastball	47.8%	539	94.9	2,527	46.6%	20.5%	118	.271	.810
Splitter	28.1%	317	86.5	1,288	43.8%	49.1%	79	.152	.447
Slider	24.1%	272	85.4	2,619	46.3%	27.0%	60	.317	.858

Trevor Stephan'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 Trevor Stephan beside up to three others.

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Trevor Stephan

Similar players

Nearest 2023 seasons by command, run prevention and role, on rate statistics rather than totals.

Colin HoldermanPIT

ERA: 3.86
FIP: 3.29
SO: 58
WAR: 1.0

Very close

Robert GarciaWSH

ERA: 3.66
FIP: 3.54
SO: 33
WAR: 0.5

Very close

Kenley JansenBOS

ERA: 3.63
FIP: 3.66
SO: 52
WAR: 0.7

Very close

Brennan BernardinoBOS

ERA: 3.20
FIP: 3.41
SO: 58
WAR: 0.9

Very close

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.