DataBaseball
2026
Boone Logan headshot

Pitcher · 2018

Boone Logan

Age
34
B/T
R/L
Height
6' 5"
Weight
215 lb
Number
#48
Born
August 13, 1984 in San Antonio, TX, USA
MLB debut
April 4, 2006
dbWAR
1.1
4 season(s)
IP
10.2
ERA
5.91
FIP
7.29
K/9
11.8
FIP−
176
100 = avg

Boone Logan is a relief pitcher for the Milwaukee Brewers. In 2018 he struck out 14 batters over 10.2 innings across 16 appearances, going 1-0. His ERA of 5.91 was 42.3% higher than the league average of 4.15. Stripping out defence, his 7.29 FIP suggests that his ERA had some help behind him. He missed bats on 34.6% of swings (16.1% of every pitch he threw), walked 17.2% of the batters he faced and struck out 24.1%. 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, 2018.

FIP7.29
K/911.8
WHIP2.34
WAR-.3

Pitching

Standard and advanced, by season.

Trend
201816010.210015714105.917.292.3411.88.4142176-0.3
201739021.010020112894.713.161.3812.03.9108720.4
201666046.1251271957203.693.231.0111.13.988770.7
201560035.1030401744174.333.611.6111.24.3109910.3

Platoon splits

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

Opponent batting by the side the hitter bats from, 2018. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB28229256.409.536.818.56021.4%
vs RHB30246158.250.379.417.31726.7%

Pitch sequencing

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

ShowBatter
SliderFour-seamSinker

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

Pitch arsenal

What he throws, how hard, and how often it misses in 2018.

Slider44.6%10085.22,49746.0%47.7%
Four-Seam Fastball35.7%8094.02,33148.8%20.5%
Sinker19.6%4493.82,22836.4%33.3%
Boone Logan'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.

Head to head

Put Boone Logan beside up to three others.

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Boone Logan
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.