Determining a Match Statistical Shooting % ?

C

ChrisinNC

AzB Silver Member
Silver Member
When I see that someone has shot a .950 for a match, I’m curious how all shots result in coming up with that number?

Obviously I realize that means the shooter successfully pockets 19 of every 20 shots or 95 of every 100 shots, etc. What I don’t understand is how safeties, kick shots, and missed two way shots/safeties play in to determining that score?

If a player executes a successful safety leaving his opponent a kick shot, is that considered a made shot or not considered at all? If a player attempts a tough shot and misses, but leaves his opponent extremely tough or hooked, what does that count as? If a player has to kick at a ball and hits it, but doesn’t leave his opponent hooked, what does that count as?

What if he has to kick at a ball and leaves his opponent a make able shot, what does that count as? If a player pockets a ball but has poor position and leaves himself either hooked or extremely tough, what does that count as? In a drawn out safety battle between two players, do any of those shots count for or against their shooting percentage based on how effective the safety was?

Just curious if there is anywhere that explains all of these various scenarios in how they determine / arrive at a match shooting percentage? – Thanks
 
great questions- I've been keeping personal stats of my sparring sessions, and was just this week wondering about how to score kicks and safes
don't know how accu-stats and them do it, but for myself I decided to count a good safe as a ball made, a bad safe as a ball missed, etc.
 
Poolplaya9 said:

and

Accu-Stats TPA Player Rating System - Dr. Dave Pool Info

Answers to frequently-asked questions about Accu-Stats' TPA rating system.
billiards.colostate.edu billiards.colostate.edu
Click to expand...
Thanks for the link. There does seem to be some subjectivity in the scoring. For example, what constitutes a good safety? Does that require the opponent is hooked and has to kick, swerve or jump, or would leaving an extremely tough shot count as a successful safety?

Also, what constitutes being out of line is a bit subjective, if the player is successfully able to shoot their way out of it or not, or if they are able to play very good safety after getting out of line? Also, just managing to hit your object ball on a kick shot when you are hooked may not be good enough unless you are able to leave your opponent very tough.

Just seems to me there’s a whole lot of opinion in accurately scoring a match and coming up with such a number.
 
A good safety is one where the opponent gets one shot and then you get the table back.
A great safety is one where the opponent gets one shot and then you get BIH.

A poor safety is one where the opponent gets more than one shot.
 
ChrisinNC said:
When I see that someone has shot a .950 for a match, I’m curious how all shots result in coming up with that number?

Obviously I realize that means the shooter successfully pockets 19 of every 20 shots or 95 of every 100 shots, etc. What I don’t understand is how safeties, kick shots, and missed two way shots/safeties play in to determining that score?

If a player executes a successful safety leaving his opponent a kick shot, is that considered a made shot or not considered at all? If a player attempts a tough shot and misses, but leaves his opponent extremely tough or hooked, what does that count as? If a player has to kick at a ball and hits it, but doesn’t leave his opponent hooked, what does that count as?

What if he has to kick at a ball and leaves his opponent a make able shot, what does that count as? If a player pockets a ball but has poor position and leaves himself either hooked or extremely tough, what does that count as? In a drawn out safety battle between two players, do any of those shots count for or against their shooting percentage based on how effective the safety was?

Just curious if there is anywhere that explains all of these various scenarios in how they determine / arrive at a match shooting percentage? – Thanks
Click to expand...
AccuStats has this info on their web page and if you search for the ratings. It's 1.000 (or 1000) minus (mistakes done divided by shots taken). Misses, out of position, bad safety (where the player sells out), scratches, fouls, scratch on break. So you take 60 shots, make 6 mistakes, it is .1, 1 - .1 gets you your .900 TPA. What tis a bad safe or bad position shot can sometimes be a personal call, but the rating is pretty strict for a open rack. If you played a shot but ended up having to bank it for example, even if you made the ball you have a bad position error credited or if you hook yourself but make the ball anyway.
 
hang-the-9 said:
AccuStats has this info on their web page and if you search for the ratings. It's 1.000 (or 1000) minus (mistakes done divided by shots taken). Misses, out of position, bad safety (where the player sells out), scratches, fouls, scratch on break. So you take 60 shots, make 6 mistakes, it is .1, 1 - .1 gets you your .900 TPA. What tis a bad safe or bad position shot can sometimes be a personal call, but the rating is pretty strict for a open rack. If you played a shot but ended up having to bank it for example, even if you made the ball you have a bad position error credited or if you hook yourself but make the ball anyway.
Click to expand...
I appreciate the clarification of the scoring. That answers a lot of questions I had. Sounds like there could still be a slight bit of subjectivity depending on who’s doing the scoring, but it sounds pretty accurate / consistent if they follow the rules you describe above.
 
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