- Scott Spratt, Baseball Info Solutions
Last Friday, July 5, Jose Iglesias batted with two outs and two runners on in the sixth inning against the Los Angeles Angels. Iglesias hit a sharp grounder to third base that Alberto Callaspo was able to get a glove on. However, Iglesias hustled down the line, and when Callaspo hesitated and then threw high, Igelsias beat it out for a single. It seems like every break has been a good one for Igelsias this season, and a disproportionate number of those breaks have been due to poor defensive play against him.
Baseball Info Solutions measures a fielder's range in a statistic called plus/minus. Plus/minus uses the ratio of plays made to plays not made by every player at a position to assign weighted credit or blame to a fielder on a specific play based on historically similar plays. For example, if 75 percent of center fielders convert a play with a certain location and hang time, then a center fielder that makes a similar play will earn a plus/minus of 0.25 (1 - 0.75). In contrast, if a center fielder fails to make that play, he will be penalized a plus/minus of 0.75. Plus/minus is then converted into plus/minus runs saved, a component of overall defensive runs saved.
Based on the plus/minus runs saved accumulated by fielders on his balls in play this season, Iglesias has been one of the five hitters who have benefited most from poor defense.
Plus/minus runs saved against: minus-13
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