Contract extensions, especially for arbitration eligible players, are all about comparables. Position and service time are a couple of major factors for which players are often compared. This kind of research was previously a tall order for those not employed by a team or agency, but MLBTR's new extension tracker removes the hassle.
The extension tracker shows all contract extensions, whether they cover the player's arbitration years, free agent years, or both. All the extensions are listed by date, and our filter button allows you to change the date range. You can also filter by any combination of team, position, guaranteed years, amount in millions, number of options, service time, super two status, and agency. The service time filtering allows you to choose one or both boundaries of a range. Service time is denoted as years.days, so 4.148 means four years and 148 days. A full year of service is 172 days. The player name is hyperlinked to MLBTR's post on the story of the extension.
Please note that some of the data prior to 2011 is still in the process of being added, such as service time, position, and number of options.
The extension tracker can be found under the Tools menu in the navigation bar up top, along with our 2012 free agent tracker, arbitration tracker, agency database, transaction tracker, and other features.