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Keiichi Yabu headshot

Players · Y · Pitcher · 2008 regular season

Keiichi Yabu

Age
40
B/T
R/R
Height
6' 1"
Weight
220 lb
Number
#22
Born
September 28, 1968 in Mie, Japan
MLB debut
April 9, 2005

Compare with…

dbWAR
.8
Regular season, 4 season(s)
IP
68.0
ERA
3.57
FIP
4.06
K/9
6.4
FIP−
94
100 = avg

Keiichi Yabu was a relief pitcher for the San Francisco Giants. In 2008 he struck out 48 batters over 68.0 innings across 60 appearances, going 3-6. His ERA of 3.57 was 17.4% lower than the league average of 4.32 — 4th of 16 on his team, and 142nd of 482 among MLB pitchers with 20+ innings. Stripping out defence, his 4.06 FIP suggests that his ERA had some help behind him. He missed bats on 20.4% of swings (9.0% of every pitch he threw), walked 10.6% of the batters he faced and struck out 15.9%. His 0.6 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, 2008 regular season.

FIP4.06
K/96.4
WHIP1.40
WAR.6

WAR by season

0.60.30.00508

Pitching Regular season

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

Trend
2008SF60068.0360632748323.574.061.406.44.283940.6
2005OAK40058.0401642944264.504.611.556.84.01051070.2

Batting Regular season

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

Trend
2008SF22000010.000.500.000.000.00050.0%0.0%.365+0.11200.0
2005OAK11000000.000.000.000.000.0000.0%0.0%.000-0.3-123-0.0

Platoon splits

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

Opponent batting by the side the hitter bats from, 2008. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB110933311513.355.450.452.39911.8%
vs RHB1921663021735.181.284.265.26318.2%

Spray chart

Where every ball he put in play landed, 2008.

Loading 1 batted balls…

Hot and cold zones

Batting average by pitch location, 2008.

————————————0 AB—
Below averageLeague averageAbove average
Batting average by location of the pitch that ended each plate appearance, catcher's view. The bordered square is the strike zone; the outer band is chase territory. Cells with fewer than 8 at-bats are left grey rather than shown as signal. League average on the same attribution is .263.

Pitch sequencing

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

ShowBatter
Four-seamCurveballCutterSliderSinkerChangeupUnknownIN

Select a count to see exactly what Keiichi Yabu throws in it.

Pitch arsenal

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

Four-Seam Fastball44.5%50289.91,79938.6%15.0%105.324.870
Curveball12.2%13875.61,76942.0%25.0%16.188.847
Cutter12.0%13688.31,26150.7%20.3%32.313.833
Slider10.8%12283.681041.0%28.4%43.023.090
Sinker8.3%9490.32,32946.8%7.7%21.381.863
Changeup8.1%9283.61,12039.1%40.8%32.156.393
Unknown2.8%32——40.6%18.8%10——
Intentional Ball1.2%1374.81,5030.0%—0——
Keiichi Yabu'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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Keiichi Yabu

Similar players

Nearest 2008 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.