Players · K · Pitcher · 2009 regular season

Masa Kobayashi

Cleveland Indians American League Central

Age: 35
B/T: R/R
Height: 6' 0"
Weight: 195 lb
Number: #30

Born: May 24, 1974 in Yamanashi, Japan
MLB debut: April 2, 2008

dbWAR: -.0
IP: 9.2
ERA: 8.38
FIP: 6.51
K/9: 3.7
FIP−: 151

Masa Kobayashi was a relief pitcher for the Cleveland Indians. In 2009 he struck out 4 batters over 9.2 innings across 10 appearances, going 0-0. His ERA of 8.38 was 93.9% higher than the league average of 4.32. Stripping out defence, his 6.51 FIP suggests he pitched better than his ERA shows. He missed bats on 16.9% of swings (8.2% of every pitch he threw), walked 8.9% of the batters he faced and struck out 8.9%. 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, 2009 regular season.

FIP6.51

K/93.7

WHIP1.66

WAR-.2

WAR by season

Pitching Regular season

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

																				Trend
2009	CLE	10	0	9.2	0	0	0	12	9	4	4	8.38	6.51	1.66	3.7	3.7	194	151	-0.2
2008	CLE	57	0	55.2	4	5	6	65	28	35	14	4.53	4.55	1.42	5.7	2.3	105	105	0.2

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2009. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	18	17	5	1	0	2	.294	.333	.529	.377	11.1%
vs RHB	27	23	7	1	4	2	.304	.407	.478	.397	7.4%

Pitch sequencing

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

ShowBatter

SinkerFour-seamSlider

Select a count to see exactly what Masa Kobayashi throws in it.

Pitch arsenal

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

Season


Sinker	47.8%	64	90.6	2,255	35.9%	8.8%	21	.476	1.214
Four-Seam Fastball	27.6%	37	90.1	2,099	43.2%	13.3%	7	—	—
Slider	21.6%	29	84.1	589	24.1%	38.5%	11	—	—

Masa Kobayashi'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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Masa Kobayashi

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.