DataBaseball
2026
Marcos Diplán headshot

Pitcher · 2022

Marcos Diplán

Age
26
B/T
R/R
Height
6' 0"
Weight
200 lb
Number
#78
Born
September 18, 1996 in Santiago, Dominican Republic
MLB debut
August 6, 2021
dbWAR
-.2
2 season(s)
IP
5.2
ERA
1.59
FIP
2.94
K/9
12.7
FIP−
74
100 = avg

Marcos Diplán is a relief pitcher for the Baltimore Orioles. In 2022 he struck out 8 batters over 5.2 innings across 5 appearances, going 0-0. His ERA of 1.59 was 60.0% lower than the league average of 3.97. Stripping out defence, his 2.94 FIP suggests that his ERA had some help behind him. He missed bats on 20.8% of swings (9.0% of every pitch he threw), walked 18.5% of the batters he faced and struck out 29.6%. 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, 2022.

FIP2.94
K/912.7
WHIP1.59
WAR.1

Pitching

Standard and advanced, by season.

Trend
2022505.200041851.592.941.5912.77.940740.1
202123030.0200221524154.505.671.237.24.5105133-0.3

Platoon splits

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

Opponent batting by the side the hitter bats from, 2022. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB11101014.100.182.100.14536.4%
vs RHB16123044.250.438.333.36725.0%

Pitch sequencing

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

ShowBatter
Four-seamCurveballSliderChangeup

Select a count to see exactly what Marcos Diplán throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2022.

Four-Seam Fastball51.6%6393.02,27252.4%18.8%
Slider18.9%2385.12,50039.1%18.2%
Curveball17.2%2180.72,66257.1%20.0%
Changeup12.3%1586.21,54826.7%40.0%
Marcos Diplán'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 Marcos Diplán beside up to three others.

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Marcos Diplán
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.