A couple of obstruction questions (OBR)

[Jay R]

OBR rules. Type B obstruction.

#1. R2. 0 out. The batter singles to RF. R2 holds at 2nd base thinking the right fielder might catch the ball. The BR rounds 1st base and collides with F3. Obstruction is indicated. The BR continues to run to 2nd base where both R2 and the BR are standing on 2nd base. The defensive players tags both runners. What is the call?

#2. R1,R2,R3. 0 out. The batter doubles and both R3 and R2 score. R1 is obstructed while rounding 3rd base. He continues home where he is safe at the plate. On the throw home, the BR attempts to go to 3rd base. The catcher throws to 3rd base where the BR is called out. Does the play stand?