APBRmetrics

This should be a very simple question. I am working on calculating offensive rebounding percentage. The formula has Team Minutes Played / 5 and it also has Individual Minutes Played. In reality aren't these the game number? Maybe I am just not getting something...

Team total minutes would be the sum of player minutes.
Team Min./5 is the maximum, or 100% of possible minutes one player can be on the floor..
A player's Individual Min./Team Min/5 is the fraction of minutes he has played.

Ok. That makes sense. The reason I was confused is because I am starting out with only those plays that the player is on the floor for. So my next questions is that if I am only beginning with that as my data set I shouldn't need to average out the rebounds correct? My formula would change to:

(100 X Individual Offensive Rebounds)
/
(Team Offensive Rebounds + Opposing Team Defensive Rebounds)

I believe this would also be more accurate.

Yes, the OReb% you get from pbp will be exact, and the traditional estimated one assumes there are the same average number of (OReb + OppDReb) in any minute.

Thanks for confirming that.