| 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 | Yonder Alonso (1)** | CLE | 0.81 | 0.302 | 86 | 6 | 13 | 21 | 28 | 0 |
| 1B | Cody Bellinger (17) | LAD | 0.18 | 0.228 | 92 | 1 | 12 | 4 | 15 | 0 |
| 2B | Jason Kipnis (15)** | CLE | 0.37 | 0.237 | 76 | 3 | 8 | 10 | 15 | 2 |
| 2B | Jonathan Villar (20) | BAL | 0.20 | 0.286 | 28 | 0 | 7 | 0 | 7 | 3 |
| SS | Trea Turner (4)** | WAS | 0.71 | 0.271 | 107 | 4 | 16 | 14 | 26 | 4 |
| SS | Nick Ahmed (3) | ARI | 0.75 | 0.302 | 86 | 4 | 14 | 20 | 30 | 0 |
| SS | Orlando Arcia (18) | MIL | 0.01 | 0.182 | 22 | 0 | 2 | 2 | 4 | 0 |
| 3B | Scott Kingery (12)** | PHI | 0.25 | 0.222 | 99 | 1 | 14 | 6 | 19 | 1 |
| 3B | Kris Bryant (10) | CHC | 0.27 | 0.250 | 40 | 2 | 6 | 8 | 12 | 0 |
| 3B | Christian Villanueva (14) | SD | 0.18 | 0.182 | 77 | 3 | 8 | 5 | 10 | 2 |
| C | Salvador Perez (1)** | KC | 0.76 | 0.293 | 92 | 7 | 9 | 21 | 23 | 0 |
| C | Yadier Molina (4) | STL | 0.65 | 0.315 | 89 | 3 | 14 | 13 | 24 | 1 |
| OF | Starling Marte (4)** | PIT | 1.13 | 0.353 | 85 | 7 | 14 | 20 | 27 | 7 |
| OF | Gregory Polanco (5)** | PIT | 1.05 | 0.301 | 93 | 8 | 20 | 18 | 30 | 4 |
| OF | Aaron Judge (18)** | NYY | 0.70 | 0.329 | 82 | 5 | 16 | 7 | 18 | 2 |
| OF | Bryce Harper (20) | WAS | 0.69 | 0.235 | 81 | 5 | 19 | 15 | 29 | 2 |
| OF | David Peralta (39) | ARI | 0.40 | 0.298 | 84 | 1 | 11 | 9 | 19 | 0 |
| OF | Jorge Soler (60) | KC | 0.00 | 0.000 | 0 | 0 | 0 | 0 | 0 | 0 |
| OF | Austin Meadows (65) | TB | -0.02 | 0.212 | 33 | 0 | 2 | 0 | 2 | 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 | 1.13 | 3 | 0 | 0 | 0.3600 | 4 | 4 | 25.0 | 0.8000 | 43 |
| SP | Dallas Keuchel (4)** | HOU | 0.97 | 4 | 1 | 0 | 1.6531 | 5 | 5 | 32.2 | 1.0102 | 23 |
| SP | Aaron Nola (11)** | PHI | 0.86 | 2 | 1 | 0 | 1.9091 | 5 | 5 | 33.0 | 0.8485 | 35 |
| SP | Jameson Taillon (14)** | PIT | 0.76 | 3 | 2 | 0 | 3.2202 | 6 | 6 | 36.1 | 1.2385 | 33 |
| SP | Sonny Gray (28)** | NYY | 0.58 | 3 | 1 | 0 | 3.4364 | 4 | 4 | 18.1 | 1.2545 | 23 |
| SP | Masahiro Tanaka (15) | NYY | 0.73 | 2 | 0 | 0 | 1.7532 | 4 | 4 | 25.2 | 0.9351 | 27 |
| SP | Patrick Corbin (42) | ARI | 0.46 | 1 | 1 | 0 | 3.6818 | 5 | 5 | 29.1 | 1.2955 | 32 |
| SP | Jordan Zimmermann (45) | DET | 0.41 | 2 | 3 | 0 | 4.5506 | 5 | 5 | 29.2 | 1.2135 | 28 |
| SP | Matt Harvey (55) | CIN | 0.34 | 2 | 1 | 0 | 4.6800 | 5 | 5 | 25.0 | 1.2000 | 22 |
| SP | Lucas Giolito (60) | CHW | 0.24 | 2 | 1 | 0 | 5.2759 | 5 | 5 | 29.0 | 1.4138 | 20 |
| SP | Steven Matz (61) | NYM | 0.22 | 2 | 4 | 0 | 6.0674 | 6 | 6 | 29.2 | 1.5843 | 29 |
| SP | Tyler Chatwood (82) | CHC | -0.01 | 1 | 0 | 0 | 6.5323 | 4 | 4 | 20.2 | 1.8871 | 12 |
| SP | Jake Junis (87) | KC | -0.12 | 0 | 2 | 0 | 7.7143 | 3 | 3 | 14.0 | 1.8571 | 11 |
| RP | Jeurys Familia (5)** | OAK | 0.89 | 3 | 0 | 3 | 0.0000 | 12 | 0 | 14.0 | 0.5000 | 14 |
| RP | Fernando Rodney (11)** | MIN | 0.55 | 1 | 0 | 5 | 4.3784 | 13 | 0 | 12.1 | 1.7027 | 14 |
| RP | Brad Hand (20)** | CLE | 0.43 | 1 | 0 | 2 | 1.9286 | 8 | 0 | 9.1 | 0.7500 | 12 |
| RP | Shane Greene (26) | DET | 0.20 | 0 | 0 | 3 | 4.5000 | 8 | 0 | 8.0 | 1.1250 | 5 |
| RP | Arodys Vizcaino (34) | ATL | -0.06 | 0 | 0 | 0 | 0.0000 | 3 | 0 | 3.0 | 1.0000 | 1 |