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Anonymous Ghost · 11-26-2022, 09:43 PM

I look at Shutdowns versus Meltdowns (see Expanded Pitching Statistics 2).

Also, this is not exactly what you're asking, but there is a way to evaluate yourself as a manager using WPA and pLI, both of which the game calculates.

First, let's look at it from a player's perspective. We need to start with the definition of "Clutch," which is how much better or worse a player does in high leverage situations than he would have done in a context neutral environment. We can define it mathematically as:

Clutch_pa=WPA/pLI-WPA/LI_pa

where pa indicates the plate appearance (i.e., Clutch and LI vary by playe appearance). Some other quick definitions:

WPA:=Win Probability Added
LI_i:=leverage index of the situation
pLI:=average leverage index of the player

The idea here is that in a neutral leverage plate appearance (i.e., pLI=LI=1), then Clutch is 0. Note that LI (and pLI) are not normally distributed: about 10% of plate appearances have LI>2 while 60% have LI<1. Also note that it's possible for LI<0 and pLI<0, in which case Clutch can be negative. However, WPA is always bounded by (0, 1).

Further note that you need to adjust WPA by LI and pLI to account for the fact that a player has no direct control over the situation that he faces himself in.

A player's Clutch_season is simply the sum across all PA. Unfortunately, the game doesn't calculate that for us.

However, we can evaluate a manager using just the weighted average of a team's WPA and pLI.

Let's start with a proposition that performance in high leverage situations is due to either Clutch or Manager, as in the manager making the right call with which RP to use. So then:

WPA-WPA/LI=Clutch+Manager

We can do a little algebraic manipulation and the definition of Clutch to solve for Manager:

Manager=WPA-WPA/LI-Clutch
Manager=WPA-WPA/LI-(WPA/pLI-WPA/L)
Manager=WPA-WPA/pLI

So if you wanted to grade your usage of RP, you simply calculate WPA-WPA/pLI for all of your RP and then find the TBF-weighted average. The easiest way to get these data is to export to CSV and go into the file "players_career_pitching_stats.csv."

Manager tends to be approximately (-1, 5), with a median of about 1.5 and 1.75 mean. So if your Manager stat is above 1.75, you're doing a better than average job managing your RP while anything below that means you have some work to do.

11-26-2022, 09:43 PM	#5
Anonymous Ghost All Star Reserve Join Date: Mar 2002 Posts: 751	I look at Shutdowns versus Meltdowns (see Expanded Pitching Statistics 2). Also, this is not exactly what you're asking, but there is a way to evaluate yourself as a manager using WPA and pLI, both of which the game calculates. First, let's look at it from a player's perspective. We need to start with the definition of "Clutch," which is how much better or worse a player does in high leverage situations than he would have done in a context neutral environment. We can define it mathematically as: Clutch_pa=WPA/pLI-WPA/LI_pa where pa indicates the plate appearance (i.e., Clutch and LI vary by playe appearance). Some other quick definitions: WPA:=Win Probability Added LI_i:=leverage index of the situation pLI:=average leverage index of the player The idea here is that in a neutral leverage plate appearance (i.e., pLI=LI=1), then Clutch is 0. Note that LI (and pLI) are not normally distributed: about 10% of plate appearances have LI>2 while 60% have LI<1. Also note that it's possible for LI<0 and pLI<0, in which case Clutch can be negative. However, WPA is always bounded by (0, 1). Further note that you need to adjust WPA by LI and pLI to account for the fact that a player has no direct control over the situation that he faces himself in. A player's Clutch_season is simply the sum across all PA. Unfortunately, the game doesn't calculate that for us. However, we can evaluate a manager using just the weighted average of a team's WPA and pLI. Let's start with a proposition that performance in high leverage situations is due to either Clutch or Manager, as in the manager making the right call with which RP to use. So then: WPA-WPA/LI=Clutch+Manager We can do a little algebraic manipulation and the definition of Clutch to solve for Manager: Manager=WPA-WPA/LI-Clutch Manager=WPA-WPA/LI-(WPA/pLI-WPA/L) Manager=WPA-WPA/pLI So if you wanted to grade your usage of RP, you simply calculate WPA-WPA/pLI for all of your RP and then find the TBF-weighted average. The easiest way to get these data is to export to CSV and go into the file "players_career_pitching_stats.csv." Manager tends to be approximately (-1, 5), with a median of about 1.5 and 1.75 mean. So if your Manager stat is above 1.75, you're doing a better than average job managing your RP while anything below that means you have some work to do.