基礎知識

GB%・LD%・FB%・IFFB%



GB%・LD%・FB%は投手が打たせた打球に占めるゴロ・ライナー・フライそれぞれの打球の割合。フライは本塁打となった打球も含み、GB%・LD%・FB%を足し合わせると100%となる。IFFB%は分母が全打球ではなく「フライのうちに占める」内野フライの割合であり、フライの内訳を示す項目である。


投手の中にはゴロを打たれる割合が多い投手もいればフライを打たれる割合が多い投手もおり、このような傾向はかなり一貫性が強く、投手のタイプが反映される。


一般的に言って、最も安打になる確率が高く守備側にとって痛手なのはライナーの打球である。ライナーは単なるゴロやフライに比べて失点への影響が圧倒的に強い。ゴロとフライの比較では安打になる確率が高いのはゴロだが、ゴロは長打になる可能性が低いため守備側にとっては安全な打球であり、失点の見込みという意味では本塁打になる可能性も含めてフライの方が高い。なお、内野フライはほぼ確実にアウトになる上に走者の進塁を許さないため、三振に等しい効果を持つ打球である。


ただし上記は各カテゴリーの打球を平均した場合の議論である。同じゴロでも打球によっては強いゴロも弱いゴロもあり、GB%だけから投手の打球の傾向を把握することはできないことに注意が必要である。


なお、GB%が高い又はFB%が高いということに関しては投手ごとに強い一貫性があるが、その打球が安打になる割合が高いかどうかに関してはほとんど一貫性がない。(BABIPの項目を参照)



シーズンのGB%ランキングはこちらから

指標一覧

指標右側のタグは"Leaders" 内のテーブルにリンクされています。Batting > Standard と表示されていた場合、"Leaders"メニュー内の"Batting""Standard" のテーブルにリンクされています。
1B
One-base Hit
Batting > Standard
2B
Two-base Hit
Batting > Standard
3B
Three-base Hit
Batting > Standard
AVG
Batting Average
Batting > Standard
AVG
Batting Average
Batting > Advanced
AVG
hits allowed average
Pitching > Advanced
BABIP
Batting Average on Balls In Play
Batting > Advanced
BB
Base on Ball
Batting > Standard
BB
walks and given
Pitching > Standard
BB/K
walk-to-strikeout ratio
Batting > Advanced
BUH%
bunt hit percentage
Batting > Batted Ball
CG
complete game
Pitching > Standard
CS
Caught Stealing
Batting > Standard
CS
caught stealing
Pitching > Standard
ERA
earned run average
Pitching > Standard
exLI
Average Leverage Index when exiting the game
Pitching > Win Probability
FB%
fly ball percentage
Batting > Batted Ball
FB%
fly ball percentage
Pitching > Batted Ball
FT%
Two Seam Fastball percentage
Batting > Pitch Type
FT%
Two Seam Fastball percentage
Pitching > Pitch Type
FTv
Two Seam Fastball velocity
Batting > Pitch Type
FTv
Two Seam Fastball velocity
Pitching > Pitch Type
GB%
ground ball percentage
Batting > Batted Ball
GB%
ground ball percentage
Pitching > Batted Ball
GB/FB
ground ball to fly ball ratio
Batting > Batted Ball
GB/FB
ground ball to fly ball ratio
Pitching > Batted Ball
GBOut%
ground ball out percentage
Batting > Batted Ball
GDP
Grounded into Double Play
Batting > Standard
gmLI
Average Leverage Index when entering the game
Pitching > Win Probability
HBP
Hit By Pitch
Batting > Standard
HBP
hit by pitch
Pitching > Standard
HR
home runs allowed
Pitching > Standard
IBB
Intentional Base on Ball
Batting > Standard
IBB
intentional base on balls
Pitching > Standard
IFFB%
infield fly ball percentage
Batting > Batted Ball
IFFB%
infield fly ball percentage
Pitching > Batted Ball
IFH%
infield hit percentage
Batting > Batted Ball
inLI
Average Leverage Index at the start of the inning
Pitching > Win Probability
IP
innings pitched
Pitching > Standard
K%
strikeouts rate
Batting > Advanced
K-BB%
strikeout-walk rate differential
Pitching > Advanced
LD%
line drive percentage
Batting > Batted Ball
LD%
line drive percentage
Pitching > Batted Ball
OBP
On-Base Percentage
Batting > Advanced
O-Contact%
Z-Contact%
Contact%
contact percentage
Batting > Plate Discipline
O-Contact%
Z-Contact%
Contact%
contact percentage
Pitching > Plate Discipline
OFOut%
outfield fly out percentage
Batting > Batted Ball
OPS
On-base Plus Slugging percentage
Batting > Advanced
O-Swing%
Z-Swing%
Swing%
SwStr%
swing percentage
Batting > Plate Discipline
O-Swing%
Z-Swing%
Swing%
SwStr%
swing percentage
Pitching > Plate Discipline
PA
Plate Appearance
Batting > Standard
PH
Pinch Hit Opportunities
Batting > Win Probability
PhLI
Average Leverage Index while Pinch Hitting
Batting > Win Probability
pLI
Player Average Leverage Index
Batting > Win Probability
pLI
Player Average Leverage Index
Pitching > Win Probability
Pull%
Cent%
Oppo%
batted ball direction
Batting > Batted Ball
Pull%
Cent%
Oppo%
batted ball direction
Pitching > Batted Ball
R
runs allowed
Pitching > Standard
RBI
Runs Batted In
Batting > Standard
RE24
Run Above Average based on the 24 Base/Out States
Batting > Win Probability
RE24
Run Above Average based on the 24 Base/Out States
Pitching > Win Probability
REW
Wins Above Average based on the 24 Base/Out States
Batting > Win Probability
REW
Wins Above Average based on the 24 Base/Out States
Pitching > Win Probability
SB
Steal a Base
Batting > Standard
SB
steal a base
Pitching > Standard
SF
Sacrifice Fly
Batting > Standard
SH
Sacrifice Hit
Batting > Standard
SLG
Slugging percentage
Batting > Advanced
SO
Strike Out
Batting > Standard
Soft%
Mid%
Hard%
quality of contact stats
Batting > Batted Ball
Soft%
Mid%
Hard%
quality of contact stats
Pitching > Batted Ball
TBF
total batters faced
Pitching > Standard
WAR
wins above replacement
Batting > Value
WAR
WAR
wins above replacement
Pitching > Value
WAR
wCB/C
Curveball runs above average per 100 pitches
Batting > Pitch Value
wCB/C
Curveball runs above average per 100 pitches
Pitching > Pitch Value
wCH/C
Changeup runs above average per 100 pitches
Pitching > Pitch Value
wCT/C
Cutter runs above average per 100 pitches
Pitching > Pitch Value
wFA/C
Fastball runs above average per 100 pitches
Batting > Pitch Value
wFA/C
Fastball runs above average per 100 pitches
Pitching > Pitch Value
wFT
Two Seam Fastball runs above average
Batting > Pitch Value
wFT
Two Seam Fastball runs above average
Pitching > Pitch Value
wFT/C
Two Seam Fastball runs above average per 100 pitches
Batting > Pitch Value
wFT/C
Two Seam Fastball runs above average per 100 pitches
Pitching > Pitch Value
WP
wild pitch
Pitching > Standard
wSB
weighted Stolen Base runs
Batting > Advanced
wSF/C
Splitter runs above average per 100 pitches
Batting > Pitch Value
wSF/C
Splitter runs above average per 100 pitches
Pitching > Pitch Value
wSI/C
Sinker runs above average per 100 pitches
Batting > Pitch Value
wSI/C
Sinker runs above average per 100 pitches
Pitching > Pitch Value
wSL/C
Slider runs above average per 100 pitches
Batting > Pitch Value
wSL/C
Slider runs above average per 100 pitches
Pitching > Pitch Value
wSP/C
Special runs above average per 100 pitches
Batting > Pitch Value
wSP/C
Special runs above average per 100 pitches
Pitching > Pitch Value
Zone%
F-Strike%
pitches in the strike zone percentage
Batting > Plate Discipline
Zone%
F-Strike%
pitches in the strike zone percentage
Pitching > Plate Discipline
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