RELIEVERS—35 elite relievers to ponder

This week, the column looks at some of the top relievers in baseball. These are 35 relievers with a xERA under 3.00. Consider this first list:

                   IP    ERA  WHIP   Dom  Cmd HR/9  xERA  GB/FB  BPV  pxERA
==============    ====  ====  ====  ==== ==== ====  ====  =====  ===  =====
Kimbrel (ATL)     14.3  2.51  1.19  17.6  4.0  0.0  1.73  48/24  224   1.78
Holland (KC)      15.0  2.40  1.07  13.2  7.3  0.6  2.22  49/34  216   2.50
Robertson (NYY)   10.3  1.74  0.68  10.5  6.0  0.9  2.43  52/39  171   2.64
Perkins (MIN)     19.3  3.72  1.09  13.0  9.3  0.5  2.58  42/42  217   2.90 (L)
K.Jansen (LA)     18.7  4.34  1.61  14.9  3.4  1.0  2.80  37/33  167   2.31

These are the only relievers with a current xERA under 3.00 and a...

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