I am having trouble understanding the non-call of the recent Pirates vs. Diamondbacks game ending play. Runners on first and third, one out, game tied. Batter hits a ground ball to shortstop, shortstop flips ball to second baseman, second baseman attempts throw to first to complete double play, thrown ball contacts the runner that was occupying first base, batter safe at first and run scores. How is this NOT interference? Batter should have been called out, no run should have scored. In my opinion, the runner is OUT via force out at second and is no longer a LEGAL runner/player and had contact with the ball, regardless of intentional or not, he cannot influence the play on the field once he is out. This is different from a legal runner, say stretching a double to a triple being hit by a thrown ball from the right fielder, he is still in play and contact with the thrown ball is incidental. The ruling on the field was that the runner's contact with the throw was unintentional. I would agree with the call had the shortstop thrown directly to first base and contacted the runner occupying first base on his way to second, he would be a legal runner, this was not the case. So, when is a runner out and how long can he remain on the field and influence play?