Rules to play Baseball
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.