Is this obstruction?

[mbyron]

Originally Posted by Larry1953

So, what is your call: F5 jumps to catch a throw from F2 in a rundown situation. It deflects off his glove into LF and he lands on his feet 10 feet down the line from the bag where he was originally stationed for the rundown. R3 is running back to the bag - plants right foot, plants left foot then collides with F5 who obviously does not have possession of the ball since it is well on its deflected course way to LF?

Could be OBS. From your description, it sounds like OBS, but I would have to see the play to judge it, as it depends on whether the fielder hindered the runner and how they were lined up.

I had a play at 1B this year where R1 got picked off, took off for 2B, and got in a rundown. As F3 threw the ball to F6, he stepped out of the baseline toward right field. R1 turned around and ran toward RF in order to deliberately collide with F3 and beg for an OBS call, when he could have run toward 1B unobstructed. That was not OBS.