DataBaseball
2026
Antonio Osuna headshot

Players · O · Pitcher · 2005 regular season

Antonio Osuna

Age
32
B/T
R/R
Height
5' 10"
Weight
225 lb
Number
#13
Born
April 12, 1973 in Guasave, Sinaloa, Mexico
MLB debut
April 25, 1995

Compare with…

dbWAR
-.5
Regular season, 2005 only
IP
2.1
ERA
42.43
FIP
23.16
K/9
0.0
FIP−
540
100 = avg

Antonio Osuna was a relief pitcher for the Washington Nationals. In 2005 he struck out 0 batters over 2.1 innings across 4 appearances, going 0-0. His ERA of 42.43 was 888.8% higher than the league average of 4.29. Stripping out defence, his 23.16 FIP suggests he pitched better than his ERA shows. He missed bats on 10.0% of swings (3.6% of every pitch he threw), walked 30.4% of the batters he faced and struck out 0.0%. His -0.5 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, 2005 regular season.

FIP23.16
K/90.0
WHIP6.86
WAR-.5

Pitching Regular season

Standard and advanced, by season. Regular-season games only. Seasons on file run 2005; his career began in 1995, and earlier seasons are not in this data yet.

Trend
2005WSH402.10009110742.4323.166.860.027.0989540-0.5—

Platoon splits

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

Opponent batting by the side the hitter bats from, 2005. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB710050.000.714.000.4740.0%
vs RHB16149220.643.6881.143.7630.0%

Not in the 2005 data: pitch types, recorded in every park from 2008. The play-by-play goes back to 2005, but the measurements on each pitch and batted ball arrived later, so the panels built from them are left off this season.

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Antonio Osuna
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.