DataBaseball
2026
Brailyn Marquez headshot

Pitcher · 2020

Brailyn Marquez

Age
21
B/T
L/L
Height
6' 4"
Weight
185 lb
Born
January 30, 1999 in Santo Domingo, Dominican Republic
MLB debut
September 27, 2020
dbWAR
-.1
1 season(s)
IP
0.2
ERA
67.50
FIP
13.69
K/9
13.5
FIP−
307
100 = avg

Brailyn Marquez is a relief pitcher for the Chicago Cubs. In 2020 he struck out 1 batter over 0.2 innings across 1 appearance, going 0-0. His ERA of 67.50 was 1415.7% higher than the league average of 4.45. Stripping out defence, his 13.69 FIP suggests he pitched better than his ERA shows. He missed bats on 36.4% of swings (12.1% of every pitch he threw), walked 42.9% 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, 2020.

FIP13.69
K/913.5
WHIP7.50
WAR-.1

Pitching

Standard and advanced, by season.

Trend
2020100.2000251367.5013.697.5013.540.51,516307-0.1

Platoon splits

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

Opponent batting by the side the hitter bats from, 2020. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB1110001.0001.0002.0001.2410.0%
vs RHB631031.333.667.333.50716.7%

Pitch sequencing

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

ShowBatter
Four-seamChangeupSlider

Select a count to see exactly what Brailyn Marquez throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2020.

Four-Seam Fastball48.5%1697.92,38318.8%20.0%
Changeup30.3%1090.82,14060.0%50.0%
Brailyn Marquez'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

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Brailyn Marquez
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.