Most DLW in a Single Season (since 1950)

As always, all links are to Baseball-Reference, which helpfully provided the basis of the table (though I added the information about each player’s total wins and DLW%).

It’s really interesting to see just how much easier it was to get a DLW in the 90′s and 00′s than it was in the earlier decades. There were a total of 3 seasons in which a pitcher got 4+ DLWs before 1990, but lately it’s been a yearly occurrence. Also, that 1990-1992 run by Jack Morris, in which he picked up 4 DLW in each year–for 3 different teams–is quite remarkable. The man is a legend in my mind.