Bases loaded

[Guest David]

 bases loaded line drive to first baseman drops ball tags first do runners have to advance

[SH0102]

No, not if they tag base first

[noumpere]

When a trailing runner is put out, runners in advance of that out are no longer forced.

 

In your play, the BR was out when F3 stepped on first, so runners in advance of the BR (that's all runners) do not need to advance

[Mudisfun]

You may also run into a ruling for an intentionally dropped ball if in the judgement of the umpire the fielder attempted to drop and then turn the double play. In this case, the ball is dead, the B/R is out and all runners return to their time of pitch base. In this scenario, nothing happens once the ball is intentionally dropped and time is called. 

[beerguy55]

On 9/4/2021 at 11:23 PM, Guest David said:

 bases loaded line drive to first baseman drops ball tags first do runners have to advance

Just forgetting the rules for a second...think of it logically.

When the batter is not out yet, the runners have to advance because there's nowhere else for them to go.   The runner on first isn't allowed to go to first, because that's where the batter is going...the runner on first has no choice but to advance...he is "forced" to go to second...which in turn "forces" the same situation on the runner on second, and so on.

If the batter is out, first base is now available to the runner on first....he can advance if he wants, but nothing is "forcing" him to do so.