What the heck is DRS?

Understanding the Defensive Runs Saved Statistic

Defensive Runs Saved (DRS) is a statistic that measures the number of runs a player saves or gives up through their defensive play. DRS is designed to evaluate the overall defensive abilities of a player and can be used to compare players across different positions on the field – but ideally, it is used to compare players at the same position.

The statistic was first introduced in the early 2000’s by baseball statistician John Dewan and has since become a popular tool for evaluating defensive performance. DRS takes into account a wide range of defensive metrics, including range, arm strength, and fielding percentage, and combines them into a single number. This allows for a more complete and accurate assessment of a player’s defensive abilities.

Defensive Runs Saved (DRS) is calculated by analyzing video footage of each play and assigning a “runs saved” or “runs given up” value to each one. This value is based on the number of runs that a player is deemed to have saved or given up through their defensive actions on a particular play. The calculation takes into account a wide range of factors such as range, arm strength, and fielding percentage.

To calculate DRS, each individual play on the field is evaluated based on the likelihood of it being converted into an out or a hit by the average player at that position. Then, the runs that a player saved or gave up relative to the league average, is computed. These values are accumulated for the entire season, giving the player a final DRS total.

The statistic is calculated by third-party providers, such as the baseball statistics website Fangraphs, using a combination of video and computer analysis. They use a combination of tracking data, data from cameras, and a team of analysts that watch each play and grade it. The statistic is not an official statistic tracked by Major League Baseball, specifically.

It’s important to keep in mind that DRS is a subjective statistic as it relies on the judgment of analysts grading the play and it might not capture all the nuances of defense, such as positioning or shifts. However, when used in conjunction with other statistics and scouting reports, DRS can provide a useful perspective on a player’s defensive abilities and how they compare to other players at the same position.

The statistic is popular among analysts and scouts who use it to identify the best defensive players in the league, and it’s also used in contract negotiations, awards, and all-star teams, coaches and managers might use it to make line-ups or in-game decisions. Now, it’s not without criticism, as one might argue that the stat is based on subjectivity and video judgment calls…and it doesn’t take into account shifts or the fielder’s positioning.

Overall, Defensive Runs Saved is a valuable tool for evaluating the defensive abilities of players at their respective position, but it should be used in conjunction with other metrics and scouting reports in order to get a more complete picture of a player’s abilities.