Two Runner on One Base

[nickdangerME]

I'm umping my first LL 9/10 Softball tourney and wanted some guidance on a call I made today. 1 out, R2 & R3. On a passed ball, both runners attempt to advance, but a quick F2 gets ball to F1 covering and R3 heads back to 3B. R2 has continued to 3B and both runners are on the bag for a moment. R2 finally wises up and heads back to 2B. I made a no call, since R2 did not pass R3.

Before the next play, my base ump asked for a conference and raised the question of whether two runners on the same bag should have been an automatic out. I asked whether R2 had passed R3, and when U2 confirmed that had not occurred, I said no out should be called. I said that it was up to the defense to tag someone on the bag since only one runner was entitled to it (in this case, R3).

After the game, I checked the LL rulebook. Unless I missed something, I think we made the right call, but my partner suggested after the game that he was sure there was a rule somewhere about two runners on one base resulting in a out.

So, did we boot it or not?

Thanks for the help. I just ran across this site and have found it invaluable as a newbie blue.