DataBaseball
2026
Justin Marks headshot

Pitcher · 2017

Justin Marks

Age
29
B/T
L/L
Height
6' 3"
Weight
205 lb
Number
#46
Born
January 12, 1988 in Owensboro, KY, USA
MLB debut
April 20, 2014
dbWAR
-.3
2 season(s)
IP
1.1
ERA
6.75
FIP
13.66
K/9
6.8
FIP−
313
100 = avg

Justin Marks is a relief pitcher for the Tampa Bay Rays. In 2017 he struck out 1 batter over 1.1 innings across 1 appearance, going 0-0. His ERA of 6.75 was 54.9% higher than the league average of 4.36. Stripping out defence, his 13.66 FIP suggests that his ERA had some help behind him. He missed bats on 22.2% of swings (7.7% of every pitch he threw), walked 14.3% of the batters he faced and struck out 14.3%. 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, 2017.

FIP13.66
K/96.8
WHIP2.25
WAR-.1

Pitching

Standard and advanced, by season.

Trend
2017101.100021116.7513.662.256.86.8155313-0.1
2016409.000071691.006.261.786.09.024149-0.2

Platoon splits

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

Opponent batting by the side the hitter bats from, 2017. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB1000101.000.7100.0%
vs RHB662101.333.333.833.47816.7%

Pitch sequencing

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

ShowBatter
Four-seamChangeupCurveball

Select a count to see exactly what Justin Marks throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2017.

Four-Seam Fastball57.7%1589.51,93840.0%33.3%
Justin Marks'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 Justin Marks beside up to three others.

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Justin Marks
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.