DataBaseball
2026
Yusmeiro Petit headshot

Players · P · Pitcher · 2021

Yusmeiro Petit

Age
37
B/T
R/R
Height
6' 1"
Weight
252 lb
Born
November 22, 1984 in Maracaibo, Venezuela
MLB debut
May 14, 2006
dbWAR
4.3
10 season(s)
IP
78.0
ERA
3.92
FIP
4.72
K/9
4.3
FIP−
111
100 = avg

Yusmeiro Petit was a relief pitcher for the Oakland Athletics. In 2021 he struck out 37 batters over 78.0 innings across 78 appearances, going 8-3. His ERA of 3.92 was 8.0% lower than the league average of 4.27 — 6th of 14 on his team, and 252nd of 567 among MLB pitchers with 20+ innings. Stripping out defence, his 4.72 FIP suggests that his ERA had some help behind him. He missed bats on 21.0% of swings (10.9% of every pitch he threw), walked 3.8% of the batters he faced and struck out 11.8%. His 0.0 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, 2021.

FIP4.72
K/94.3
WHIP1.04
WAR.0

WAR by season

2.11.0-0.115161718192021

Pitching

Standard and advanced, by season.

Trend
2021OAK78078.0832693437123.924.721.044.31.4921110.0
2020OAK26021.22101941751.664.111.117.12.137920.2
2019OAK80083.0530572571102.713.590.817.71.160801.3
2018OAK74093.0730763176183.003.921.017.41.772950.7
2017LAA60191.15246928101182.762.850.9510.01.863652.1
2016WSH36162.0351673149154.504.811.327.12.2107115-0.1
2015SF42176.0111753159153.674.091.187.01.8931030.3

Batting

Standard and advanced, by season.

Trend
2019OAK11000000.000.000.000.000.0000.0%0.0%.000-0.3-123-0.0
2016WSH67100002.167.167.167.000.2500.0%28.6%.146-1.0-19-0.0
2015SF710000003.000.000.000.000.0000.0%30.0%.000-2.5-129-0.1

Platoon splits

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

Opponent batting by the side the hitter bats from, 2021. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB122114256615.219.256.439.29012.3%
vs RHB191182446622.242.268.368.27511.5%

Pitch sequencing

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

ShowBatter
Four-seamCutterChangeupCurveball

Select a count to see exactly what Yusmeiro Petit throws in it.

Pitch arsenal

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

Four-Seam Fastball45.8%49687.62,13537.9%11.0%125.264.706
Cutter22.9%24884.52,13544.4%25.4%66.303.813
Changeup17.7%19180.81,75143.5%27.9%63.175.597
Curveball13.6%14774.92,01749.0%33.3%43.116.342
Yusmeiro Petit'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 Yusmeiro Petit beside up to three others.

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Yusmeiro Petit

Similar players

Nearest 2021 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.