A Rundown is a situation when a base runner is stranded between two bases and is in a position to be tagged out. When a runner attempts to advance a base but is cut off by a fielder who then “runs” the runner back to the originating base.
While doing this, the fielder throws the ball to another fielder at the originating base forcing the runner to reverse course and head to the next base. This scenario can be repeated over and over again.
There can be three outcomes:
the runner is tagged out,
the runner gets back to the originating base safely, or
the runner successfully advances to the next base.
To score this you must include every defensive player who was involved in the play, from beginning to end.
Here is a simple example:
There is a man on second base
A ground ball is hit to the short stop
Instead of throwing to first base, the short stop throws it to the third baseman.
Seeing this, the runner on second stops before reaching third and retreats to second
The third baseman throws to the second baseman (who is covering second base)
Seeing this, the runner then reverses and heads toward third base
The second baseman throws to the third baseman who tags the runner out before reaching third.
This would be scored as a fielders choice and the rundown is recorded by the defensive position numbers of the players involved.
In the batter’s cell the entry would be “FC 6-5-4-5″; where “FC” represents a Fielders Choice, “6” represents the shortstop fielding the ball, “5” represents the third baseman catching the throw, “4” represents the second baseman catching the throw from the third baseman and “5” represents the third baseman catching the ball from second baseman and tagging out the runner.
A line would be drawn in the batter’s cell to represent he arrived at first base safely
The out number would be entered in the runner’s cell on the baseball scorecard.