| April | May | June | July | August | September | Season-to-Date |
| Back to Team Rankings | Mike O | Casey S | J&P G | Terry | Ron | Alan | Walter | Bill | Joe |
| Est. Value | Average | AB | Homers | Runs | RBI | Runs Prod | Steals | |||
| 1B | Cody Bellinger (4)** | LAD | 0.85 | 0.259 | 85 | 8 | 18 | 15 | 25 | 3 |
| 1B | Yonder Alonso (15) | CLE | 0.25 | 0.233 | 73 | 1 | 8 | 10 | 17 | 0 |
| 2B | Jason Kipnis (10)** | CLE | 0.49 | 0.266 | 79 | 4 | 9 | 11 | 16 | 2 |
| 2B | Jonathan Villar (14) | MIL | 0.28 | 0.227 | 75 | 3 | 7 | 5 | 9 | 3 |
| SS | Trea Turner (9)** | WAS | 0.60 | 0.275 | 102 | 3 | 15 | 7 | 19 | 6 |
| SS | Nick Ahmed (14) | ARI | 0.39 | 0.256 | 90 | 2 | 13 | 8 | 19 | 1 |
| SS | Orlando Arcia (21) | MIL | -0.03 | 0.190 | 63 | 0 | 4 | 1 | 5 | 1 |
| 3B | Kris Bryant (13)** | CHC | 0.32 | 0.267 | 75 | 1 | 8 | 9 | 16 | 1 |
| 3B | Scott Kingery (12) | PHI | 0.40 | 0.250 | 96 | 2 | 10 | 10 | 18 | 3 |
| 3B | Christian Villanueva (16) | SD | 0.07 | 0.206 | 63 | 1 | 5 | 4 | 8 | 0 |
| C | Yadier Molina (3)** | STL | 0.53 | 0.263 | 76 | 5 | 9 | 15 | 19 | 0 |
| C | Salvador Perez (20) | KC | -0.07 | 0.158 | 95 | 2 | 5 | 4 | 7 | 0 |
| OF | Aaron Judge (25)** | NYY | 0.56 | 0.232 | 95 | 6 | 13 | 14 | 21 | 1 |
| OF | Gregory Polanco (26)** | PIT | 0.56 | 0.306 | 62 | 3 | 9 | 16 | 22 | 0 |
| OF | Starling Marte (37)** | PIT | 0.41 | 0.183 | 93 | 2 | 11 | 11 | 20 | 8 |
| OF | Bryce Harper (49) | WAS | 0.21 | 0.186 | 86 | 2 | 10 | 9 | 17 | 1 |
| OF | Austin Meadows (50) | PIT | 0.20 | 0.260 | 77 | 1 | 5 | 6 | 10 | 1 |
| OF | Jorge Soler (57) | KC | 0.02 | 0.194 | 36 | 1 | 1 | 3 | 3 | 0 |
| Back to Team Rankings | Mike O | Casey S | J&P G | Terry | Ron | Alan | Walter | Bill | Joe |
| Est. Value | Wins | Losses | Saves | ERA | Games | Starts | Innings | WHIP | K's | |||
| SP | Chris Sale (1)** | BOS | 1.31 | 3 | 2 | 0 | 1.7561 | 6 | 6 | 41.0 | 0.7561 | 60 |
| SP | Aaron Nola (17)** | PHI | 0.74 | 3 | 0 | 0 | 3.2283 | 5 | 5 | 30.2 | 1.2065 | 33 |
| SP | Jameson Taillon (18)** | PIT | 0.74 | 3 | 2 | 0 | 2.9032 | 5 | 5 | 31.0 | 1.1613 | 29 |
| SP | Patrick Corbin (42)** | ARI | 0.53 | 1 | 1 | 0 | 3.5217 | 5 | 5 | 30.2 | 1.1087 | 36 |
| SP | Sonny Gray (51)** | NYY | 0.40 | 2 | 2 | 0 | 4.6364 | 6 | 6 | 33.0 | 1.2121 | 29 |
| SP | Steven Matz (50) | NYM | 0.40 | 1 | 2 | 0 | 3.8969 | 5 | 5 | 32.1 | 1.2062 | 29 |
| SP | Lucas Giolito (59) | CHW | 0.30 | 2 | 1 | 0 | 4.8539 | 5 | 5 | 29.2 | 1.3820 | 21 |
| SP | Matt Harvey (61) | CIN | 0.29 | 2 | 2 | 0 | 4.7093 | 5 | 5 | 28.2 | 1.1512 | 18 |
| SP | Masahiro Tanaka (64) | NYY | 0.23 | 1 | 0 | 0 | 4.3548 | 2 | 2 | 10.1 | 1.0645 | 15 |
| SP | Tyler Chatwood (70) | CHC | 0.10 | 0 | 1 | 0 | 5.4000 | 5 | 5 | 25.0 | 1.7200 | 26 |
| SP | Dallas Keuchel (74) | HOU | 0.08 | 1 | 1 | 0 | 5.7176 | 5 | 5 | 28.1 | 1.6235 | 20 |
| SP | Jake Junis (84) | KC | -0.12 | 0 | 5 | 0 | 7.1379 | 5 | 5 | 29.0 | 1.5517 | 28 |
| RP | Fernando Rodney (9)** | MIN | 0.66 | 1 | 0 | 6 | 2.8929 | 10 | 0 | 9.1 | 0.9643 | 13 |
| RP | Arodys Vizcaino (15)** | ATL | 0.54 | 1 | 0 | 5 | 0.0000 | 6 | 0 | 6.0 | 1.5000 | 7 |
| RP | Shane Greene (19)** | DET | 0.47 | 0 | 3 | 6 | 5.0625 | 11 | 0 | 10.2 | 1.2188 | 12 |
| RP | Brad Hand (20) | SD | 0.44 | 0 | 1 | 6 | 6.0000 | 12 | 0 | 12.0 | 1.1667 | 15 |
| RP | Jeurys Familia (36) | NYM | -0.03 | 1 | 2 | 0 | 8.2174 | 8 | 0 | 7.2 | 2.6087 | 6 |