DataBaseball
2026
Dan Altavilla headshot

Players · A · Pitcher · 2025 regular season

Dan Altavilla

Age
33
B/T
R/R
Height
5' 11"
Weight
235 lb
Born
September 8, 1992 in Greenock, PA, United States
MLB debut
August 27, 2016
Drafted
2014, round 5
College
Mercyhurst
High school
Elizabeth Forward

Compare with…vs Chris Murphyvs Michael Kellyvs Rob Zastryzny

dbWAR
.2
Regular season, 8 season(s)
IP
29.0
ERA
2.48
FIP
5.45
K/9
6.5
FIP−
131
100 = avg

Dan Altavilla was 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 regular season.

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

WAR by season

0.40.1-0.31617181920212425

Pitching Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.

Trend
2025CWS28029.001219821152.485.451.176.54.760131-0.3
2024KC513.2010565314.737.262.1812.37.4361178-0.1
2021SD201.100011206.759.920.7513.50.0158233-0.1
2020SEA/SD22020.1231181324125.754.521.4810.65.31291010.1
2019SEA17014.22109918125.524.101.4311.07.4123910.1
2018SEA22020.232011623152.614.661.2610.06.563112-0.0
2017SEA41046.2110432252204.244.791.3510.03.9971100.0
2016SEA15012.10001111010.732.010.977.30.717480.4

Separate from the regular season

Postseason Postseason

Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.

Postseason pitching

Postseason Dan Altavilla's postseason pitching, by October and round. Not part of any regular-season figure on this page.
SeasonTeamRoundGGSIPWLSVHERHRBBSOERAWHIPK/9
2020 PostSDNLDS202.0000210124.501.509.0

Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.

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, how often it misses, and what hitters do with it.

Four-Seam Fastball26.5%12196.02,33338.8%16.0%24.125.692
Sinker25.0%11496.62,28947.4%26.5%24.167.619
Slider25.0%11490.72,53043.0%12.8%23.304.776
Changeup23.5%10791.81,77943.0%31.7%30.167.594
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. 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.

Compare Dan Altavilla with…

Side by side with up to three others.

Compare with… add up to 3 more players
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.