Backcourt?

[APG]

2007-2008 NFHS Basketball Rules Interpretations

SITUATION 10: A1, in the team's frontcourt, passes to A2, also in the team's frontcourt. B1 deflects the ball toward Team A's backcourt. The ball bounces only in Team A's frontcourt before crossing the division line. While the ball is still in the air over Team A's backcourt, but never having touched in Team A's backcourt, A2 gains possession of the ball while standing in Team A's backcourt.
RULING: Backcourt violation on Team A. Team A was still in team control and caused the ball to have backcourt status. Had A2 permitted the ball to bounce in the backcourt after having been deflected by B1, there would have been no backcourt violation. (4-4-1; 4-4-3; 9-9-1)

This is the interpretation that would make your play a backcourt violation according to the NFHS interpretation. If you search, you'll find a long thread about the merits of this silly (IMO), interpretation. There was a strong majority if I remember correctly that were against this interpretation as it is conflicting with the written rule.