| Division | Player | Year |
| AL East Win Leaders - 20 (NYY) | |
| 21 (BOS) | |
| 22 (TOR) | |
| 21 (BOS) | |
| 17 (NYY) | |
| 19 (NYY) | |
| 20 (BOS) | |
| 20 (NYY)/(TOR) | |
| 19 (NYY) | |
| 21 (NYY) | |
| AL East ERA Leaders - 3.15 (NYY) | |
| 2.26 (BOS) | |
| 2.22 (BOS) | |
| 3.26 (BOS) | |
| 3.71 (TOR) | |
| 3.19 (TOR) | |
| 3.16 (BAL) | |
| 2.78 (TOR) | |
| 2.79 (TOR) | |
| 2.33 (BOS) | |
| AL East Strikeout Leaders - 220 (BOS) | |
| 239 (BOS) | |
| 206 (BOS) | |
| 227 (BOS) | |
| 211 (NYY) | |
| 183 (BOS) | |
| 239 (TBD) | |
| 231 (TOR) | |
| 225 (BOS) | |
| 225 (BOS) | |
| AL East Save Leaders - 50 (NYY) | |
| 40 (BOS) | |
| 40 (NYY) | |
| 53 (NYY) | |
| 43 (NYY) | |
| 38 (TOR) | |
| 37 (BOS) | |
| 41 (BOS) | |
| 44 (NYY) | |
| 45 (TBR) | |
| | Division | Player | Year |
| AL Central Wins Leaders - 17 (MIN)/(CLE) | |
| 19 (CWS) | |
| 21 (CWS) | |
| 20 (MIN) | |
| 18 (CWS)/(CLE) | |
| 19 (MIN) | |
| 19 (CLE)/(CLE) | |
| 22 (CLE) | |
| 19 (DET) | |
| 18 (DET) | |
| AL Central ERA Leaders - 3.16 (MIN) | |
| 3.58 (CWS) | |
| 2.90 (CWS) | |
| 2.61 (MIN) | |
| 2.86 (CLE) | |
| 2.77 (MIN) | |
| 3.06 (CLE) | |
| 2.54 (CLE) | |
| 2.16 (KCR) | |
| 3.37 (DET) | |
| AL Central Strikeout Leaders - 201 (CLE) | |
| 149 (CLE) | |
| 207 (CWS) | |
| 265 (MIN) | |
| 238 (MIN) | |
| 245 (MIN) | |
| 235 (MIN) | |
| 200 (CWS) | |
| 269 (DET) | |
| 219 (DET) | |
| AL Central Save Leaders - 42 (CWS) | |
| 45 (MIN) | |
| 41 (MIN) | |
| 44 (MIN) | |
| 45 (CLE) | |
| 41 (CWS) | |
| 45 (CLE) | |
| 42 (KCR) | |
| 47 (MIN) | |
| 43 (KCR) | |
| | Division | Player | Year |
| AL West Wins Leaders - 21 (OAK) | |
| 23 (OAK) | |
| 21 (SEA) | |
| 18 (TEX)/(ANA) | |
| 21 (LAA) | |
| 16 (TEX)/(OAK) | |
| 19 (LAA) | |
| 17 (LAA) | |
| 19 (SEA) | |
| 18 (OAK) | |
| AL West ERA Leaders - 3.05 (SEA) | |
| 2.75 (OAK) | |
| 2.70 (OAK) | |
| 3.53 (OAK) | |
| 3.20 (LAA) | |
| 3.56 (LAA) | |
| 3.01 (LAA) | |
| 3.41 (LAA) | |
| 2.49 (SEA) | |
| 2.27 (SEA) | |
| AL West Strikeout Leaders - 205 (OAK) | |
| 182 (OAK) | |
| 162 (OAK) | |
| 191 (ANA) | |
| 199 (LAA) | |
| 190 (LAA) | |
| 192 (OAK) | |
| 214 (LAA) | |
| 217 (SEA) | |
| 233 (LAA) | |
| AL West Saves Leaders - 45 (SEA) | |
| 44 (OAK) | |
| 43 (OAK) | |
| 49 (TEX) | |
| 45 (LAA) | |
| 47 (LAA) | |
| 40 (LAA)/(SEA) | |
| 62 (LAA) | |
| 48 (LAA) | |
| 40 (TEX) | |
|