DataBaseball
2026
Johan Oviedo headshot

Players · O · Pitcher · 2026 regular season

Johan Oviedo

Age
28
B/T
R/R
Height
6' 6"
Weight
275 lb
Number
#29
Born
March 2, 1998 in Havana, Cuba
MLB debut
August 19, 2020
Salary, 2026
$1.55M

Compare with…vs Gavin Williamsvs Grant Holmesvs Kodai Senga

dbWAR
2.5
Regular season, 7 season(s)
IP
3.2
ERA
9.82
FIP
10.19
K/9
7.4
FIP−
244
100 = avg

Johan Oviedo is a relief pitcher for the Boston Red Sox. In 2026 he struck out 3 batters over 3.2 innings across 1 appearance, going 0-0. His ERA of 9.82 was 134.8% higher than the league average of 4.18. Stripping out defence, his 10.19 FIP suggests that his ERA had some help behind him. He missed bats on 13.5% of swings (6.9% of every pitch he threw), walked 5.6% of the batters he faced and struck out 16.7%. His -0.2 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, 2026 regular season.

FIP10.19
K/97.4
WHIP1.91
WAR-.2

WAR by season

1.90.8-0.2202122232526

Pitching Regular season

Standard and advanced, by season. Regular-season games only.

Trend
2026BOS103.200064319.8210.191.917.42.5235244-0.2
2025PIT9940.1210261642233.574.921.219.45.1861180.1
2023PIT3232177.2914016185158834.314.491.378.04.2991041.9
2022STL/PIT21856.0430492054233.213.741.298.73.781940.6
2021STL141362.1050613451374.915.271.577.45.3115124-0.1
2020STL5524.2030241516105.475.301.385.83.61231190.1

Batting Regular season

Standard and advanced, by season. Regular-season games only.

Trend
2021STL1322302029.150.227.150.000.2739.1%40.9%.185-2.490.1—

Platoon splits

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

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB220000.000.000.000.0000.0%
vs RHB16136213.462.5001.077.61318.8%

Pitch sequencing

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

ShowBatter
Four-seamSinkerCurveballSlider

Select a count to see exactly what Johan Oviedo throws in it.

Pitch arsenal

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

Four-Seam Fastball34.7%2593.02,25348.0%21.4%7——
Curveball25.0%1876.52,32538.9%11.1%2——
Sinker19.4%1492.12,23957.1%0.0%3——
Slider19.4%1483.52,37642.9%25.0%4——
Johan Oviedo'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.

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Johan Oviedo
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.