DataBaseball
2026
Logan Allen headshot

Pitcher · 2024

Logan Allen

Age
27
B/T
R/L
Height
6' 3"
Weight
200 lb
Number
#54
Born
May 23, 1997 in West Palm Beach, FL, USA
MLB debut
June 18, 2019
Drafted
2015, round 8
High school
IMG Academy
dbWAR
.1
1 season(s)
IP
28.0
ERA
5.46
FIP
4.35
K/9
6.8
FIP−
107
100 = avg

Logan Allen is a relief pitcher for the Arizona Diamondbacks. In 2024 he struck out 21 batters over 28.0 innings across 12 appearances, going 0-1. His ERA of 5.46 was 34.0% higher than the league average of 4.08 — 13th of 17 on his team, and 458th of 541 among MLB pitchers with 20+ innings. Stripping out defence, his 4.35 FIP suggests he pitched better than his ERA shows. He missed bats on 19.7% of swings (9.8% of every pitch he threw), walked 7.8% of the batters he faced and struck out 16.4%. 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, 2024.

FIP4.35
K/96.8
WHIP1.50
WAR.1

Platoon splits

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

Opponent batting by the side the hitter bats from, 2024. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB474214127.333.362.476.35714.9%
vs RHB8172182814.250.333.375.31817.3%

Pitch sequencing

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

ShowBatter
CutterSplitterSweeperFour-seamSinkerCurveball

Select a count to see exactly what Logan Allen throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2024.

Cutter21.9%10387.12,15347.6%24.0%
Sweeper21.1%9981.72,42846.5%27.3%
Splitter20.9%9879.61,07333.7%24.5%
Four-Seam Fastball18.3%8691.31,97946.5%13.2%
Sinker16.8%7990.11,86744.3%5.3%
Logan Allen'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
202412028.0011321721105.464.351.506.83.21341070.1

Head to head

Put Logan Allen beside up to three others.

Compare — add up to 3 more players
Logan Allen

Similar players

Nearest 2024 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.