Players · V · Pitcher · 2025

Mike Vasil

Chicago White Sox American League Central

Age: 25
B/T: L/R
Height: 6' 5"
Weight: 225 lb
Number: #61

Born: March 19, 2000 in Boston, MA, United States
MLB debut: March 31, 2025
Drafted: 2021, round 8
College: Virginia
High school: Boston College Prep

dbWAR: .4
IP: 101.0
ERA: 2.50
FIP: 4.32
K/9: 7.3
FIP−: 104

Mike Vasil was a relief pitcher for the Chicago White Sox. In 2025 he struck out 82 batters over 101.0 innings across 47 appearances, going 5-3. His ERA of 2.50 was 40.0% lower than the league average of 4.16 — the second best on his team, and 59th of 542 among MLB pitchers with 20+ innings. Stripping out defence, his 4.32 FIP suggests that his ERA had some help behind him. He missed bats on 24.0% of swings (10.2% of every pitch he threw), walked 12.3% of the batters he faced and struck out 19.4%. His 0.4 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, 2025.

FIP4.32

K/97.3

WHIP1.25

WAR.4

Pitching

Standard and advanced, by season.

																				Trend
2025	CWS	47	3	101.0	5	3	4	74	28	82	52	2.50	4.32	1.25	7.3	4.6	60	104	0.4	—

Platoon splits

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

Opponent batting by the side the hitter bats from, 2025. 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	205	176	36	5	25	39	.205	.317	.313	.284	19.0%
vs RHB	218	186	38	3	27	43	.204	.318	.312	.290	19.7%

Pitch sequencing

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

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SinkerSweeperFour-seamCurveballChangeupCutter

Select a count to see exactly what Mike Vasil throws in it.

Pitch arsenal

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


Sinker	39.9%	657	94.4	2,185	45.2%	14.6%	151	.238	.695
Sweeper	16.1%	265	81.7	2,557	37.0%	29.3%	60	.167	.531
Four-Seam Fastball	14.0%	231	94.6	2,289	49.4%	39.0%	42	.119	.601
Curveball	12.3%	203	81.7	2,455	42.9%	32.3%	32	.250	.726
Changeup	12.2%	200	86.6	1,496	37.0%	20.6%	57	.158	.446
Cutter	5.5%	90	86.1	2,408	38.9%	34.0%	21	.286	.634

Mike Vasil'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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Similar players

Nearest 2025 seasons by command, run prevention and role, on rate statistics rather than totals.

Yariel RodríguezTOR

ERA: 3.08
FIP: 4.40
SO: 66
WAR: 0.3

Very close

Jacob LatzTEX

ERA: 2.84
FIP: 3.72
SO: 76
WAR: 1.0

Hunter StricklandLAA

ERA: 3.27
FIP: 4.41
SO: 14
WAR: 0.1

Anthony BandaLAD

ERA: 3.18
FIP: 4.52
SO: 61
WAR: 0.2

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.