DataBaseball
2026
Jerome Williams headshot

Players · W · Pitcher · 2016

Jerome Williams

Age
35
B/T
R/R
Height
6' 3"
Weight
260 lb
Number
#57
Born
December 4, 1981 in Honolulu, HI, United States
MLB debut
April 26, 2003
dbWAR
-1.3
4 season(s)
IP
17.1
ERA
5.71
FIP
6.61
K/9
4.2
FIP−
158
100 = avg

Jerome Williams was a relief pitcher for the St. Louis Cardinals. In 2016 he struck out 8 batters over 17.1 innings across 11 appearances, going 0-0. His ERA of 5.71 was 36.3% higher than the league average of 4.19. Stripping out defence, his 6.61 FIP suggests that his ERA had some help behind him. He missed bats on 21.4% of swings (10.3% of every pitch he threw), walked 7.4% of the batters he faced and struck out 9.9%. His -0.4 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, 2016.

FIP6.61
K/94.2
WHIP1.62
WAR-.4

WAR by season

0.0-0.3-0.71516

Pitching

Standard and advanced, by season.

Trend
2016STL11017.10002211865.716.611.624.23.1136158-0.4
2015PHI3321121.041211617874345.805.241.615.52.5146132-0.7

Batting

Standard and advanced, by season.

Trend
2016STL22000001.000.000.000.000.0000.0%50.0%.000-0.5-120-0.0
2015PHI20362010114.065.094.097.032.1182.8%38.9%.090-6.5-59-0.2

Platoon splits

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

Opponent batting by the side the hitter bats from, 2016. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB29253033.120.241.200.21510.3%
vs RHB524719435.404.442.745.4939.6%

Spray chart

Where every ball he put in play landed, 2016.

Loading 1 batted balls…

Hot and cold zones

Batting average by pitch location, 2016.

—————————1 AB————
Below averageLeague averageAbove average
Batting average by location of the pitch that ended each plate appearance, catcher's view. The bordered square is the strike zone; the outer band is chase territory. Cells with fewer than 8 at-bats are left grey rather than shown as signal. League average on the same attribution is .255.

Pitch sequencing

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

ShowBatter
SinkerCutterChangeupFour-seamSlider

Select a count to see exactly what Jerome Williams throws in it.

Pitch arsenal

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

Sinker35.7%10489.71,96139.4%5.3%21.3331.114
Cutter29.6%8686.580845.3%33.3%22.4091.140
Changeup17.9%5283.81,65538.5%23.3%17.118.505
Four-Seam Fastball12.7%3789.81,98332.4%20.0%10——
Jerome Williams'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

Put Jerome Williams beside up to three others.

Compare — add up to 3 more players
Jerome Williams
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.