Originally Posted by SluggerDad:
Well, there is also rule 6.05 part m
Rule 6.05 reads:
A batter is out when --
(m) A preceding runner shall, in the umpire's judgment, intentionally interfere with a fielder who is attempting to catch a thrown ball or to throw a ball in an attempt to complete any play:
Rule 6.05(m) Comment: The objective of this rule is to penalize the offensive team for deliberate, unwarranted, unsportsmanlike action by the runner in leaving the baseline for the obvious purpose of crashing the pivot man on a double play, rather than trying to reach the base. Obviously this is an umpire's judgment play.
Rule 6.05 reads:
A batter is out when --
(m) A preceding runner shall, in the umpire's judgment, intentionally interfere with a fielder who is attempting to catch a thrown ball or to throw a ball in an attempt to complete any play:
Rule 6.05(m) Comment: The objective of this rule is to penalize the offensive team for deliberate, unwarranted, unsportsmanlike action by the runner in leaving the baseline for the obvious purpose of crashing the pivot man on a double play, rather than trying to reach the base. Obviously this is an umpire's judgment play.
An aside: that's the old rule. The new rule is 5.09a(13). And by MLBUM interpretation of that rule, if a runner can reach the bag, it is not considered interference.