batter interference

[Manny A]

Originally Posted by chapmaja

Not exactly the same thing, but.....

I could see a situation where the batter swings and misses (strike 3), then intentionally knocks the ball away from the catcher attempting to tag the batter-runner while the runner from third is coming home. In this case, the batter had become a batter-runner when the third strike was dropped, and committed interference which prevented a double play.

It is something I have never seen, but ....

The question specifically mentioned a batter, not a retired batter or a batter-runner, which are covered by different rules. Unless I'm wrong, I think I captured the only scenario where a runner is out by the batter's act.

In your scenario, it's possible to rule a double play if you feel one could have taken place. But the hindrance was with the tag of the batter-runner (I assume the third strike was uncaught; otherwise, why would the catcher try to tag the BR?) so it should be quite evident that the catcher had a potential follow-on play on the runner from third.