Villain
#VillainYourFriend
For the record, here are the numbers I lean on the most:
Pitchers:
K%
BB%
K-BB%
Batted-Ball Velocity
Spin rates (if I can find them)
BABIP/FIP
GB%/LD%/FB%
HR/FB
SIERA and/or ERA-
IP or TBF
Batters:
K%
BB%
Batted-Ball Velocity
OBP/SLG/OPS/ISO
OPS+
BABIP
wOBA
wRC+
PA
The numbers that get plugged in are all empirical, with the exception that league-average constants are also included in the equations of the "w" or "+/-" stats. Still, the numbers that make one player's SIERA or wOBA good or bad are 100% based on the events that actually happened on the field. They aren't "theoretical" in the sense that they are trying to tell you what will happen in the future. They are generated using "real" numbers from what the players have actually done.
I was at Dodger Stadium for Kenley Jansen's first Win of the year. It came in the same inning as his first blown save of the year.
Pitchers:
K%
BB%
K-BB%
Batted-Ball Velocity
Spin rates (if I can find them)
BABIP/FIP
GB%/LD%/FB%
HR/FB
SIERA and/or ERA-
IP or TBF
Batters:
K%
BB%
Batted-Ball Velocity
OBP/SLG/OPS/ISO
OPS+
BABIP
wOBA
wRC+
PA
The numbers that get plugged in are all empirical, with the exception that league-average constants are also included in the equations of the "w" or "+/-" stats. Still, the numbers that make one player's SIERA or wOBA good or bad are 100% based on the events that actually happened on the field. They aren't "theoretical" in the sense that they are trying to tell you what will happen in the future. They are generated using "real" numbers from what the players have actually done.
How often do you see a pitcher do JUST enough to win, or JUST enough to lose?? sometimes these stats just show the intangibles...
I was at Dodger Stadium for Kenley Jansen's first Win of the year. It came in the same inning as his first blown save of the year.