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[OHBBREF]

Originally Posted by Vinski

This is an excellent question. I see this all the time also and wonder why it almost never gets called. In fact there is a ton of aggressive contact under the boards with the big post players that rarely gets called. Many times during the battles for rebounding position the bigger guy will “maneuver” the other guy out to gain a better position for the rebound. This is obviously a push, but hardly ever gets called unless it’s really harsh or there is some holding. What guidelines are used to determine when enough is enough with the pushing and jostling under the boards?

These are two different situations handled differently.
on the rebounding there is a lot of contact true, but does that contact displace and result in an advantage for the player initiatiing the contact.
A lot of what you see is a big player just out jumping another big player for the ball.
As long as the player on the outside doesn't initiate the contact and displace the inside player to get the ball. it is just inadvertant contact. It doesn't mean anything as long as everyone is going straight up and we have no advantage it is all good.

here is a question for you
If an offensive player jumps forward toward the basket to take a jump shot and the defender is between him and the basket jumps forward to defend against the shot and their is minimal torso and hip contact (with no contact above the shoulders) as the offensive player makes the jump shot who is the foul on?