OBS

[mbyron]

I agree with Pete's diagnosis. This is clearly HTBT, but based on grey's description I think I would go with Pete's option B and award the runner 2B.

F3 has interrupted the flow of the play, and the defense incurs a heavy burden at that point. The standard of the rule is to award the obstructed runner a base in order to "nullify" the obstruction. So if I think the chances of BR reaching 2B were near 50-50 or better, I'll give him 2B. On the other hand, if BR was out by 15 feet - or caught in a rundown - then I'd likely let the out stand.