I have teams in worlds 1 through 8. I run the 3-2 (guard perimeter) zone in every world. Unless it's postseason I run "0" 99% of the time.

One world has no season stats currently available due to recruiting.

One world has 1 game under it's belt and my D1 team is currently at something like -15 rebound margin.

All other worlds ( 3xD2, 3xD1) my teams currently have a slight rebounding advantage.

Just putting some numbers out there. I didn't check offensive vs. defensive boards. It might be that playing a few simmy teams pads the stat but overall I don't see a problem. If anything, playing the absolute worst rebounding defense (3-2) should skew it negative. Maybe I'm more brilliant than I think but doubt it. On those 6 teams with a slight rebound advantage my rpi's probably range from 40 -200 with an average around 120. 

Interesting. I looked at OFF rebounding for my 6 teams. Crum just rolled over so it's down to 5 worlds with stats. 3 of the 5 worlds my teams get fewer Offensive rebounds than my opponents. This indicates my teams aren't great rebounders. And yet, overall, they are just barely getting more rebounds per game. In short they are holding their own.

I'm thinking that maybe my awesome defense is causing more rebounds to be available? Last night I checked across the 6 worlds for 3pt% defense. It was 27%, 29%, 30%, 31%, 32%, 34%. Now remember, I'm running a 3-2 so that should help defend the perimeter. But it's zone. Meaning I've always got a guy or two playing even though their DEF rating is kind of low. 

I just lost in the D3 NT title game playing zone in Crum.  Zone is fine IF you have good athletic rebounders.  But since you don't worry about fatigue or DEF as much, you have to have some tradeoff, right?  I think zone is ok.

If someone was trying to figure out some rebounding percentages. . anyone have an idea of what percentage of missed free throws, as an estimate, would be reboundable?  Not all of them, obviously, but. . . 

I usually just look at your Off reb vs your opponents Def reb, and then your Def Reb vs the opponents Off Reb;  then compare the precentages

for instance grantducks Portland  team:

Your Off:  299   Opp Def:  641    =  31.8% of available rebounds
Opp Off:  384   Your Def:  697    =  35.5% of available rebounds

is the 3.7 difference too large for a zone?   

For a zero or plus defensive setting I wouldn't consider it too far out of line. 
If the team played a 2-3 with minus setting a majority of the time it may be too large.   I'd expect that to be fairly even.

Posted by Iguana1 on 3/26/2011 10:25:00 AM (view original):
I usually just look at your Off reb vs your opponents Def reb, and then your Def Reb vs the opponents Off Reb;  then compare the precentages

for instance grantducks Portland  team:

Your Off:  299   Opp Def:  641    =  31.8% of available rebounds
Opp Off:  384   Your Def:  697    =  35.5% of available rebounds

is the 3.7 difference too large for a zone?   

For a zero or plus defensive setting I wouldn't consider it too far out of line. 
If the team played a 2-3 with minus setting a majority of the time it may be too large.   I'd expect that to be fairly even.

On its face  I don't think 3.7 is a bad margin at all. 

However, in conference, I had also had  a negative margin against teams I generally had considerably better rebounders than, in addition to starting 3 big men.

I also played primarily negative 2-3 zone.  Had games where I played -3 and gave up nearly 20 offensive rebounds, etc.

That's where the issue is seen. 

I dunno Grant.  Rochester's schedule has been much weaker than I'd hoped when I scheduled it last season, but regardless we're having exceptionally dominant rebounding.