DataBaseball
2026
Justin Hagenman headshot

Players · H · Pitcher · 2026

Justin Hagenman

Age
30
B/T
R/R
Height
6' 3"
Weight
205 lb
Number
#47
Born
October 7, 1996 in Voorhees, NJ, United States
MLB debut
April 16, 2025
Drafted
2018, round 23
College
Penn State
High school
Bishop Eustace Prep
dbWAR
.2
2 season(s)
IP
8.0
ERA
3.38
FIP
6.10
K/9
4.5
FIP−
146
100 = avg

Justin Hagenman is a relief pitcher for the New York Mets. In 2026 he struck out 4 batters over 8.0 innings across 3 appearances, going 0-0. His ERA of 3.38 is 19.2% lower than the league average of 4.18. Stripping out defence, his 6.10 FIP suggests that his ERA had some help behind him. He missed bats on 12.3% of swings (6.1% of every pitch he threw), walked 6.1% of the batters he faced and struck out 12.1%. His -0.1 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, 2026.

FIP6.10
K/94.5
WHIP1.25
WAR-.1

WAR by season

0.30.1-0.12526

Pitching

Standard and advanced, by season.

Trend
2026NYM318.000083423.386.101.254.52.381146-0.1
2025NYM9123.201124122324.563.771.108.70.8110910.3

Platoon splits

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

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB19174122.235.316.412.32410.5%
vs RHB14144102.286.286.500.33614.3%

Pitch sequencing

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

ShowBatter
Four-seamCutterChangeupSlider

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Pitch arsenal

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

Four-Seam Fastball41.7%5590.92,09936.4%5.9%9——
Cutter27.3%3684.32,30047.2%9.1%13——
Changeup22.7%3085.31,64250.0%26.3%7——
Slider8.3%1181.32,38745.5%0.0%2——
Justin Hagenman'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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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.