2011 Disabled List Spreadsheet and Team Information by Jeff Zimmerman February 20, 2012 I have gone through all of the 2011 MLB transactions and compiled the disabled list (DL) data for the 2011 season. I have put all the information in a Google Doc for people to use Here is an explanation of the columns Last – Last name First – First name Transaction Date – Date transaction was reported to MLB Official On DL Date – Official date the player went on DL. On DL – In Season – Players can be placed on DL before the season starts. This date is the first day the player was on the DL during the season. Official Off DL Date – Players can be kept on DL after the season ends. This date is the last day the player was on the DL during the season. Official Off DL Date – Official date the player was taken off the DL Days – Total days on the DL. In Season On and Off DL dates were used to determine this value Des – Description of the transaction Team – Player’s team Position – Player’s position DL – Type of DL: 7, 15 or 60 day DL Location – Location on body Type – Type of injury Side – Side of the body that the injury occurred Body type – What on body was injured Extent – Extent of injury Surgery – Did the player have surgery Surgery date – When did the surgery happen On 60 DL – When the player get transferred from the 15 day DL to the 60 day DL I am making the data free to the public, so anyone can use it in any way they see fit. Also, if anyone find any errors let me know and I will correct the data. Team Data Here is a quick look at the team data for 2011. First, here is the number of days and trips to the DL: The one interesting fact, besides the White Sox having almost the least amount of DL again, that sticks out to me is that younger teams, like the Rays and Royals, have fewer trips and days lost. I went ahead and plotted the average age of the team (data taken from baseball-reference.com) vs. the total number of days lost to see if there was any data behind the hunch. A small trend does exist between the average age and days lost, but there is a bunch of other factors at work as well. I will look some more into the data (ex. salary lost, DL projections) once some people have looked over the complete list of transactions to make sure it is as error free as possible.