At this writing the 5th game has been suspended, to be continued tonite or as soon thereafter as weather permits. I note that the last 4 Series have been no more than 5 games, and the question arises as to the longest such streak in World Series history.
A perusal of the history shows that only once before has there been a streak of 4 Series without a 6th game. This was in 1913-1916, during the decade in which the American League dominated the Series. There have been four streaks of 3: 27-29, 37-39, 41-43, and 88-90.
If the Phillies finish off the Rays tonite, the 5 straight short Series would be a new record.