Defense Efficiency Ratio is the percentage of times a batted ball is turned into an out by the teams’ fielders, not including home runs.
Baseball Prospectus tracks this statistic. Here’s the AL leaders as of this morning:
The good news here is that the Yankees are doing a very good job, so far, this season, at turning batted balls into outs. The bad news here is that column above titled “ROE” – that’s “Reached On Error” (meaning the number of times a batter reaches base as a direct result of a fielding error).
Only the Angels are worse, so far, this year, in the AL, in terms of allowing guys to reach base via an error.
I guess this should not be a shock. A-Rod has 11 errors this season already. Cano has 7 and Jeter has 6 to his discredit. Giambi has 5 and Phillips has one less than that. When your infield has 33 errors in 68 games, I would imagine that some of those allowed people to reach base safely.
The Yankees are also second-worst in the AL, to date, in terms of allowing unearned runs (UER):
Just imagine how bad things would be for the Yankees, in the field, if more of those batted balls went for hits instead of outs? Better lucky than good, right?