Player not moving towards the base

[parrothead]

Tourney is using OBR, the last tournament pitcher picks to the 3B, standing 8 feet from the 3rd base bag, catches the ball and doesnt make a move towards 3B, balk called.

Does that same rule apply at 2B? Or because second is not a required throw, where you throw it and what that fielders subsequent moves dont matter? Team we were playing last night their P threw to the second baseman on two occasions who never broke towards the bag and wasnt really that close and my asst coach asked me if that was a balk and I said I didnt think so at 2B because he is not even required to throw.