| 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 (2)** | LAD | 0.97 | 0.355 | 93 | 4 | 13 | 19 | 28 | 5 |
| 1B | Yonder Alonso (17) | CLE | 0.29 | 0.194 | 98 | 4 | 10 | 12 | 18 | 0 |
| 2B | Jonathan Villar (4)** | BAL | 0.76 | 0.264 | 106 | 4 | 15 | 13 | 24 | 8 |
| 2B | Jason Kipnis (13) | CLE | 0.54 | 0.253 | 87 | 3 | 14 | 13 | 24 | 2 |
| SS | Trea Turner (3)** | WAS | 0.76 | 0.267 | 120 | 3 | 18 | 12 | 27 | 8 |
| SS | Nick Ahmed (14) | ARI | 0.29 | 0.253 | 83 | 2 | 8 | 6 | 12 | 2 |
| SS | Orlando Arcia (15) | MIL | 0.24 | 0.283 | 53 | 1 | 4 | 5 | 8 | 2 |
| 3B | Matt Chapman (2)** | OAK | 1.08 | 0.319 | 113 | 9 | 22 | 18 | 31 | 0 |
| 3B | Christian Villanueva (18) | SD | 0.22 | 0.356 | 45 | 1 | 4 | 2 | 5 | 0 |
| 3B | Scott Kingery (19) | PHI | 0.21 | 0.229 | 35 | 2 | 5 | 3 | 6 | 2 |
| 3B | Kris Bryant (23) | CHC | 0.00 | 0.000 | 0 | 0 | 0 | 0 | 0 | 0 |
| C | Salvador Perez (3)** | KC | 0.43 | 0.238 | 101 | 5 | 10 | 12 | 17 | 0 |
| C | Yadier Molina (2) | STL | 0.44 | 0.243 | 115 | 2 | 15 | 12 | 25 | 1 |
| OF | David Peralta (3)** | ARI | 1.18 | 0.361 | 97 | 10 | 18 | 21 | 29 | 0 |
| OF | Bryce Harper (6)** | WAS | 0.99 | 0.324 | 102 | 5 | 18 | 20 | 33 | 3 |
| OF | Gregory Polanco (35)** | PIT | 0.43 | 0.218 | 101 | 2 | 11 | 16 | 25 | 3 |
| OF | Starling Marte (41) | PIT | 0.37 | 0.260 | 104 | 1 | 11 | 5 | 15 | 5 |
| OF | Jorge Soler (57) | KC | 0.00 | 0.000 | 0 | 0 | 0 | 0 | 0 | 0 |
| OF | Aaron Judge (58) | NYY | 0.00 | 0.000 | 0 | 0 | 0 | 0 | 0 | 0 |
| OF | Austin Meadows (59) | TB | 0.00 | 0.000 | 0 | 0 | 0 | 0 | 0 | 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 | Aaron Nola (6)** | PHI | 1.09 | 3 | 0 | 0 | 1.0588 | 5 | 5 | 34.0 | 0.9412 | 35 |
| SP | Patrick Corbin (16)** | ARI | 0.90 | 3 | 1 | 0 | 2.7000 | 5 | 5 | 33.1 | 0.8700 | 41 |
| SP | Jameson Taillon (20)** | PIT | 0.84 | 3 | 1 | 0 | 2.3824 | 5 | 5 | 34.0 | 1.1176 | 30 |
| SP | Jake Junis (24)** | KC | 0.75 | 2 | 1 | 0 | 2.9455 | 6 | 6 | 36.2 | 1.1455 | 38 |
| SP | Lucas Giolito (26)** | CHW | 0.72 | 3 | 1 | 0 | 3.8571 | 6 | 6 | 37.1 | 1.0179 | 40 |
| SP | Dallas Keuchel (39) | HOU | 0.56 | 2 | 1 | 0 | 3.4914 | 6 | 6 | 38.2 | 1.2414 | 27 |
| SP | Jordan Zimmermann (45) | DET | 0.50 | 2 | 3 | 0 | 3.7850 | 6 | 6 | 35.2 | 1.2897 | 27 |
| SP | Matt Harvey (62) | CIN | 0.30 | 1 | 1 | 0 | 4.3875 | 5 | 5 | 26.2 | 1.4625 | 25 |
| SP | Sonny Gray (63) | NYY | 0.30 | 2 | 1 | 0 | 4.9091 | 6 | 2 | 18.1 | 1.6909 | 17 |
| SP | Masahiro Tanaka (69) | NYY | 0.23 | 0 | 3 | 0 | 4.3953 | 5 | 5 | 28.2 | 1.4302 | 28 |
| SP | Chris Sale (70) | BOS | 0.22 | 1 | 0 | 0 | 0.0000 | 1 | 1 | 5.0 | 0.2000 | 12 |
| SP | Steven Matz (78) | NYM | 0.11 | 0 | 2 | 0 | 4.5000 | 3 | 3 | 14.0 | 1.0714 | 14 |
| SP | Tyler Chatwood (94) | CHC | -0.16 | 0 | 1 | 0 | 8.2174 | 4 | 1 | 7.2 | 2.2174 | 3 |
| RP | Brad Hand (4)** | CLE | 0.73 | 0 | 0 | 6 | 1.4595 | 12 | 0 | 12.1 | 1.2973 | 19 |
| RP | Fernando Rodney (5)** | OAK | 0.71 | 1 | 0 | 3 | 0.0000 | 15 | 0 | 15.0 | 1.0667 | 14 |
| RP | Shane Greene (13)** | DET | 0.52 | 0 | 0 | 6 | 2.8929 | 10 | 0 | 9.1 | 1.1786 | 9 |
| RP | Jeurys Familia (22) | OAK | 0.38 | 2 | 1 | 0 | 4.1538 | 13 | 0 | 13.0 | 1.3077 | 19 |
| RP | Arodys Vizcaino (43) | ATL | -0.18 | 0 | 0 | 0 | 0.0000 | 0 | 0 | 0.0 | 0.0000 | 0 |