First, a balk or an illegal pitch is considered a play by the offense so “no” they cannot still appeal the play. However, the pitcher does not need to disengage from the rubber in the set position to throw to third for an appeal so that would not be a balk. In NFHS, from the wind up, the pitcher can only step off or pitch so a throw to third would be considered an illegal pitch/balk if he did not properly disengage.
