Doubled off 1st

[Marc R.I.]

Runners on 1st and 3rd, 1 out. Fly ball hit to the outfield as the runner breaks from 1st in an attempt to steal 2nd. Ball is caught and the throw goes to 1st, trying to double up the runner. In the process, the runner from 3rd tags up legally and touches home plate before the runner is doubled off at first. Does the run count?

[jimurrayalterego]

51 minutes ago, Marc R.I. said:

Runners on 1st and 3rd, 1 out. Fly ball hit to the outfield as the runner breaks from 1st in an attempt to steal 2nd. Ball is caught and the throw goes to 1st, trying to double up the runner. In the process, the runner from 3rd tags up legally and touches home plate before the runner is doubled off at first. Does the run count?

Yes, a common question here but we don't expect newcomers to use the search function. 

Right out of the OBR, MLB's rulebook: 

"5.08 Comment .......................................APPROVED RULING: One out, Jones on third, Smith on first, and Brown flies out to right field. Two outs. Jones tags up and scores after the catch. Smith attempted to return to first but the right fielder’s throw beat him to the base. Three outs. But Jones scored before the throw to catch Smith reached first base, hence Jones’ run counts. It was not a force play."

It's what we call a "time play".