In a plate game I worked a few weeks ago a pitcher made a pick-off to first base. The throw was was high, so the 1st basemann needed to jump up quite a bit to catch the ball. The runner in the meantime dived to the base and was lying on his belly with his hand on the base. When landing the 1st basemen tagged the runner on his back, which caused the runner to lift his arm a bit, so he was not in contact with the base for a moment.
I did not regard the tag at the time as violent. The runner was declared out by my partner. Should obstruction be called in this case and the awarded second base?
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