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2026
Héctor Rondón headshot

Players · R · Pitcher · 2020

Héctor Rondón

Age
32
B/T
R/R
Height
6' 3"
Weight
225 lb
Number
#56
Born
February 26, 1988 in Guatire, Venezuela
MLB debut
April 3, 2013
dbWAR
3.8
8 season(s)
IP
20.0
ERA
7.65
FIP
6.59
K/9
10.3
FIP−
148
100 = avg

Héctor Rondón was a relief pitcher for the Arizona Diamondbacks. In 2020 he struck out 23 batters over 20.0 innings across 23 appearances, going 1-0. His ERA of 7.65 was 71.8% higher than the league average of 4.45 — the worst on his team, and 310th of 323 among MLB pitchers with 20+ innings. Stripping out defence, his 6.59 FIP suggests he pitched better than his ERA shows. He missed bats on 19.7% of swings (9.2% of every pitch he threw), walked 11.3% of the batters he faced and struck out 23.7%. 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, 2020.

FIP6.59
K/910.3
WHIP1.80
WAR-.3

WAR by season

1.50.6-0.3151617181920

Pitching

Standard and advanced, by season.

Trend
2020AZ23020.0100251723117.656.591.8010.35.0172148-0.3
2019HOU62160.2320562548203.714.961.257.13.0821100.1
2018HOU63059.02515582167203.202.791.3210.23.177671.3
2017CHC61057.1410502769204.244.121.2210.83.197940.6
2016CHC54051.0231842205883.533.500.9810.21.484840.7
2015CHC72070.06430551369151.672.681.008.91.942681.5

Batting

Standard and advanced, by season.

Trend
2017CHC22100000.500.500.500.000.5000.0%0.0%.437+0.21710.0
2016CHC11000001.000.000.000.000—0.0%100.0%.000-0.3-122-0.0

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 LHB383292512.281.395.531.39131.6%
vs RHB5952164611.308.373.692.43018.6%

Pitch sequencing

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

ShowBatter
Four-seamSliderSinkerChangeup

Select a count to see exactly what Héctor Rondón throws in it.

Pitch arsenal

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

Four-Seam Fastball49.0%19195.72,04449.7%10.4%45.3111.237
Slider36.9%14485.42,28947.9%34.4%31.258.646
Sinker10.5%4195.31,98836.6%15.8%8——
Changeup3.6%1488.31,71835.7%25.0%0——
Héctor Rondón'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 Héctor Rondón beside up to three others.

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Héctor Rondón

Similar players

Nearest 2020 seasons by command, run prevention and role, on rate statistics rather than totals.

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.