基礎知識

成績予測システム/D-CAST

選手の将来の成績を予測するシステム。MLBでは多くのシステムが開発されている。計算方法は各システムによって異なるが、基本的には過去数年の成績を土台として基準となる成績を見積もり、平均への回帰や年齢の変化による影響等を考慮した補正を行なうことによって最終的な予測値が算出される。著名な成績予測システムにMarcel、PECOTA、ZiPS、Oliver等がある。

DELTAでは2022年オフに独自の予測システム“D-CAST”を公開。

D-CASTはこの初公開時のバージョンを1.0.0とし、今後ロジックのアップデートがあった際は、以下に履歴を残していく。

2024.3.22更新 ver.3.0.0

WARのバージョンアップデートにあわせてD-CASTの値も更新しています
・先発/救援の登板配分を調整しました。D-CASTの予測成績は直近3年から算出されますが、先発/救援の登板配分については、直近年度をベースに算出されるようになりました。例えば2021-22年に救援としてのみ、2023年に先発としてのみ登板した平良海馬(西武)の2024年予測は先発のみで算出されます。
・年齢曲線、平均への回帰の重みを最新版に更新しました

2023.3.16更新 ver.2.0.0

・ファーム成績が予測に反映されるよう改良しました
・出場機会の予測が実態にあうよう調整を施しました

2022.10.21更新 ver.1.0.0

・算出の詳細はこちらから

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
CS
Caught Stealing
Fielding > Standard
CS%
Caught Stealing percentage
Fielding > Standard
CStr%
Called + swinging strike percentage
Batting > Plate Discipline
DP
Double Plays
Fielding > Standard
DPF
Double Plays Finished
Fielding > Standard
DPS
Double Plays Started
Fielding > Standard
DPT
Double Plays Turned
Fielding > 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
FP%
Fielding percentage
Fielding > Standard
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
PB
Passed Balls
Fielding > 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
rPB
Passed Balls Saved runs above average
Fielding > Advanced
rSB
Stolen Base Runs Saved runs above average
Fielding > Advanced
SB
Steal a Base
Batting > Standard
SB
steal a base
Pitching > Standard
SB
Stolen Bases
Fielding > Standard
Scp%
First Baseman Scoops percentage
Fielding > 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
TE
Throwing Errors
Fielding > 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
WP
Wild Pitches
Fielding > 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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