The process of selecting the winner seems like a good combination of old school and new school, at least on the face of it. Seven coaches from each team vote and they also use the ABR Defensive Index (SDI).
Voting Rules
The Rawlings Gold Glove Award® represents overall fielding excellence, and it is not an award based solely on fielding metrics and statistics, nor does it factor in offensive production.
Only the manager and six (6) coaches for each Major League Baseball team vote, for a total of seven (7) votes per team. Each person must sign the completed Ballot in order to be considered valid.
Managers and coaches cannot vote for their own players and can only vote for players in their own League.
Managers and coaches cast votes for players at particular positions, not in general terms; i.e. qualified LF instead of three general OF.
Eligibility for a Rawlings Gold Glove Award closely follows qualification standards set forth in MLB Rule 10.22 (Minimum Standards for Individual Championships). Only players listed in the resource guide are eligible for a Rawlings Gold Glove Award at the specific position listed. For rules on player qualification for a particular position, please see the “Notes & Glossary” section of the resource guide. Qualified players are sorted in alphabetical order.
The votes are confidential between Major League Baseball and Rawlings Sporting Goods Company, Inc.
SABR Defensive Index
The SABR Defensive IndexTM (SDI) is a measure of the number of runs saved by a player's defensive performance over the course of a season, compared to the average defensive player at that position. The SDI combines measures from six (6) different defensive data sources and includes factors that rate the defenders arm strength and accuracy, range and his sure-handedness, along with the number of “excellent” and “poor” fielding plays he makes. The SDI also incorporates a rating for a player's ability to turn double plays (2B and SS), fielding bunts (primarily P, C, 3B, and 1B) and scoops of throws in the dirt (1B). For catchers, blocking balls in the dirt and stolen bases/ caught stealing are also included. For pitchers, the SDI includes his ability to hold runners on base and control the running game.
A positive SDI number indicates that a player was above average compared to other players at his position this season. Conversely, a negative SDI number means the player performed below the league average at this position this season.