Out then safe then out...

[Rich Ives]

MLBUM 4.12

Umpire error.

Fix it.

If an umpire's error such as a missed count or number of outs clearly affects the play, every attempt should be made to correct the error, if possible.

Play: Runner on first base is stealing with a 3-1 count on the batter. The next pitch is called ball four, but the catcher throws the ball to second base anyway, and the runner is tagged before reaching the base. Umpire erroneously calls the runner out, and the runner, believing he is out,
steps off the bag and is again tagged by the fielder.

Ruling: The runner left second base under the assumption that the runner was out; however, the out was declared as a result of umpire error. In this situation the runner should be returned to second base. This is a correctable umpire error.