Thanks and another one from this weekend

[bob jenkins]

Assuming that NFHS is the correct rules set for this play (many 12U games are played under some modification of OBR, and that modification *might* include the NFHS Force Play Slide Rule), then:

1) if R1 slid past the base and THEN made contact with F4 (that is, if the contact was first beyond the base, in the "baseline extended"), it's a violation. The BR is out and other runners return.

2) if the contact was first on or over the base (and the slide was otherwise legal), then the play was legal, even if R1 continues past the base and / or the cotact continues past the base.