DataBaseball
2026
Dan Altavilla headshot

Pitcher · 2025

Dan Altavilla

Age
33
B/T
R/R
Height
5' 11"
Weight
235 lb
Born
September 8, 1992 in Greenock, PA, USA
MLB debut
August 27, 2016
Drafted
2014, round 5
College
Mercyhurst
High school
Elizabeth Forward
dbWAR
-.4
2 season(s)
IP
29.0
ERA
2.48
FIP
5.45
K/9
6.5
FIP−
131
100 = avg

Dan Altavilla is a relief pitcher for the Chicago White Sox. In 2025 he struck out 21 batters over 29.0 innings across 28 appearances, going 0-1. His ERA of 2.48 was 40.3% lower than the league average of 4.16 — the best on his team, and 55th of 542 among MLB pitchers with 20+ innings. Stripping out defence, his 5.45 FIP suggests that his ERA had some help behind him. He missed bats on 22.5% of swings (10.3% of every pitch he threw), walked 12.5% of the batters he faced and struck out 17.5%. 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, 2025.

FIP5.45
K/96.5
WHIP1.17
WAR-.3

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 LHB665894616.155.258.397.28824.2%
vs RHB544210095.238.396.310.3399.3%

Pitch sequencing

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

ShowBatter
Four-seamSinkerSliderChangeup

Select a count to see exactly what Dan Altavilla throws in it.

Pitch arsenal

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

Four-Seam Fastball26.5%12196.02,33338.8%16.0%
Sinker25.0%11496.62,28947.4%26.5%
Slider25.0%11490.72,53043.0%12.8%
Changeup23.5%10791.81,77943.0%31.7%
Dan Altavilla'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
202528029.001219821152.485.451.176.54.760131-0.3
2024513.2010565314.737.262.1812.37.4361178-0.1

Head to head

Put Dan Altavilla beside up to three others.

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Dan Altavilla

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.