Sign Up History & Records Archives Data News
Research & Reports
Team Records
Team Season ERA
Seattle Mariners 55 3.488
Seattle Mariners 49 3.520
Seattle Mariners 57 3.547
Seattle Mariners 56 3.717
Seattle Mariners 58 3.787
Seattle Mariners 116 3.807
Seattle Mariners 53 3.809
Seattle Mariners 50 3.850
Seattle Mariners 51 3.867
Seattle Mariners 115 3.903
Seattle Mariners 124 4.017
Seattle Mariners 54 4.030
Seattle Mariners 44 4.037
Seattle Mariners 43 4.060
Seattle Mariners 52 4.173
Seattle Mariners 46 4.244
Seattle Mariners 132 4.260
Seattle Mariners 118 4.265
Seattle Mariners 59 4.271
Seattle Mariners 109 4.285
Seattle Mariners 45 4.327
Seattle Mariners 113 4.367
Seattle Mariners 61 4.397
Seattle Mariners 62 4.398
Seattle Mariners 131 4.400
Seattle Mariners 47 4.433
Seattle Mariners 60 4.441
Seattle Mariners 110 4.442
Seattle Mariners 48 4.475
Seattle Mariners 112 4.492
Seattle Mariners 127 4.525
Seattle Mariners 125 4.584
Seattle Mariners 121 4.725
Seattle Mariners 108 4.730
Seattle Mariners 104 4.815
Seattle Mariners 107 4.835
Seattle Mariners 129 4.880
Seattle Mariners 105 4.881
Seattle Mariners 120 4.917
Seattle Mariners 114 4.927
Seattle Mariners 106 4.935
Seattle Mariners 126 4.942
Seattle Mariners 63 4.991
Seattle Mariners 117 5.075
Seattle Mariners 122 5.239
Seattle Mariners 111 5.253
Seattle Mariners 119 5.289
Seattle Mariners 128 5.468
Seattle Mariners 123 5.514
Seattle Mariners 130 5.560