OOB rule clarification

[johnny d]

Originally Posted by PG_Ref

not so in NCAA if the player goes out of bounds under their own volition.

How is the underlined part relevant to the OP, in which the person asked if he saved the ball and momentum carried him out?

In fact, the rule for a person leaving the court on their own is more harsh in NFHS, a violation immediately, than in NCAA, not a violation unless the person is the first to touch the ball.