Did I?
 

Pretty sure I kicked a backcourt call last night. As a side note, it is quite a transition working 3-whistle varsity scrimmages to a poorly played JV Girls 2-whistle game. A1 dribbles toward me through a press. I'm new lead, about 10 feet off the division line in the frontcourt. A1 stops the dribble while straddling the division line, then pivots fully to the backcourt. I hit my whistle and gave B the ball.

I think I was wrong on two counts. It wasn't my call, and to top it off, it was the wrong call.

Yes, it was wrong call, but you already know that, so file it away. Might have been your call, you were new lead in transition? Were there players in front of you? just getting a sense of who/where.

Too bad Tom Izzo wasn't there to point out your mistake. You could have conferenced and fixed the problem. :D