DataBaseball
2026
Mike Vasil headshot

Pitcher · 2025

Mike Vasil

Age
25
B/T
L/R
Height
6' 5"
Weight
225 lb
Number
#61
Born
March 19, 2000 in Boston, MA, USA
MLB debut
March 31, 2025
Drafted
2021, round 8
College
Virginia
High school
Boston College Prep
dbWAR
.4
1 season(s)
IP
101.0
ERA
2.50
FIP
4.32
K/9
7.3
FIP−
104
100 = avg

Mike Vasil is 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

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.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB2051763652539.205.317.313.28419.0%
vs RHB2181863832743.204.318.312.29019.7%

Pitch sequencing

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

ShowBatter
SinkerSweeperFour-seamCurveballChangeupCutter

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

Pitch arsenal

What he throws, how hard, and how often it misses in 2025.

Sinker39.9%65794.42,18545.2%14.6%
Sweeper16.1%26581.72,55737.0%29.3%
Four-Seam Fastball14.0%23194.62,28949.4%39.0%
Curveball12.3%20381.72,45542.9%32.3%
Changeup12.2%20086.61,49637.0%20.6%
Cutter5.5%9086.12,40838.9%34.0%
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.

Pitching

Standard and advanced, by season.

Trend
2025473101.0534742882522.504.321.257.34.6601040.4

Head to head

Put Mike Vasil beside up to three others.

Compare — add up to 3 more players
Mike Vasil

Similar players

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

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.