Player Effectiveness Rating

Hey everyone, I could use some help figuring this out. I've always been found of the QB rating stat, and I've been trying to come up with ways to apply it to basketball. Each position requires different skills for that player to be considered effective. By weighing the different stats differently for each position I'd like to come up with a way that a great game for a player would give them a rating around 100. And perhaps set it up to include minutes played, so I could rate bench players about the same way. Here is what I've come up with so far.

A average great for a point guard (IMO)
15 pts
FG% 45
1 3ptrM
3 TPA
4 FTA
5 FTM
1 OReb
3 TReb
9 Ast
2 TO
4 ST
0 BL

Using this formula
PG: Points * (0.55 + FG%) + 3ptrM * 4 - (TPA - TPM) * 2 + (FTA *FT%) * 3 + Oreb * 2 + TReb + Ast * 5 - (TO - 2) * 5 + ST *7 + BL *3

The PG would net a 97 rating.
So each position is slightly modified to take into account which area they should be specializing in.

SG: Points * (0.54 + FG%) + 3ptrM * 5 - (TPA - TPM) * 2 + (FTA *FT%) * 3 + Oreb * 3 + TReb + Ast * 4 - (TO - 1) * 5 + ST * 6 + BL * 4

SF: Points * (0.53 + FG%) + 3ptrM * 5 - (TPA - TPM) * 2 + (FTA * (FT% + .05)) * 3 + Oreb * 4 + TReb * 1.25 + Ast * 4 - (TO - 1) * 5 + ST * 5 + BL * 5

PF: Points * (0.54 + FG%) + 3ptrM * 5 - (TPA - TPM) * 2 + (FTA *FT%) * 3 + Oreb * 5 + TReb * 1.5+ Ast * 3 - (TO - .75) * 5 + ST * 4 + BL * 6

C: Points * (0.54 + FG%) + 3ptrM * 5 - (TPA - TPM) * 2 + (FTA *FT%) * 3 + Oreb * 6 + TReb * 1.75 + Ast * 2 - (TO - .5) * 5 + ST * 3 + BL * 7

This needs a lot of work, but I think it's a good starting point. If I can nail this system down, I'd like to make a fantasy league based on this, so you have draft players that play their position well, and not just a player that will help you out in certain categories.

If you have any ideas for how to improve this, let me know. Right now I'm looking at MVP seasons for different positions and pluging in what the rating would be.

Thanks,

B

 

Haven,

You bring up a lot of good points in your post. If I reward versality in each position, than how can you tell if someone is a better traditional PG or PF? Also, I want to make each position unique, otherwise I'm just creating another TENDEX type rating system for all players. I think what I'm trying to do is rate it position based on what would be considered "ideal" for that position. I know most players don't fit into a mold as well as they used to, and there are a ton of things that stats can't measure. I don't plan on using this as a scouting tool or anything important like that, more as a fun type thing to look at, and maybe to discuss things like would Steve be a better fit at PG or SG, and is Morris a better SF or SG, etc.

I want the SF position to reward/demand versatility more than any other position. So players that can do a bit of everything are considered a SF in this system. A passing first player would be considered a PG, etc. I tried to base this on what is normally considered important for a particular position. Sure Hakeem is a good passing center, but do most coaches look for a passing center, or a rebounding/shot blocking center? I know this is FAR from accurate depection of different positions, but it's a start. Basketball can not be fully comprehended by numbers, but there are a lot of things that can be told. Anyways, thanks for the input Haven.

Oh, you mention Steve's rebounding numbers and that brings up an interesting case. With my rating system, Steve doesn't benefit much from getting boards, but a power forward or a center benefits greatly. This is because normally, you would want your center or power forward to be in rebounding position, and your guards and SF ready to run the fast break. So normally the point guard would be on the opposite end of the fast break and either score, or have a dish to the SG or SF.

I don't think any system can account for everything, or be anywhere close to perfect, but if I can show that Kidd is a better PG than Stephon, and Stephon is a better SG than Kidd would be, than I'm starting to get somewhere with the system. Anyway, my eyes are blurry and my thinking isn't straight, so I'm going to sleep. Thanks for the input!

B