Bases loaded with 2 outs. Ball is hit to shortstop. SS tags runner attempting to advance to 3rd. Does the run count from 3rd base
The run does not count. Rule 4.09 of the MLB rule book states:
4.09 HOW A TEAM SCORES.
(a) One run shall be scored each time a runner legally advances to and touches first, second, third and home base before three men are put out to end the inning. EXCEPTION: A run is not scored if the runner advances to home base during a play in which the third out is made (1) by the batter-runner before he touches first base; (2) by any runner being forced out; or (3) by a preceding runner who is declared out because he failed to touch one of the bases.
The runner attempting to advance to third is forced out for the third out. As a result, the run is not scored.