[AtlUmpSteve]

It scores in NFHS and NCAA; it does not score in ASA.

The only "awarded" base is the batter-runner awarded first base; by definition, the other runners are forced, until they are not!! And thus protected while advancing to the next base, but still not "awarded" the next base. If the third out is made before the R1 touches home, no run scores on that timing play.

I do not understand the rationale in NFHS and NCAA, but they both have approved rulings (to the best of my memory of the top of my head) that indicate the run scores, using a theory not defined anywhere that each runner is somehow awarded the next base, even as the third out removes the force that is advancing them.