| 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 (3)** | CLE | 0.73 | 0.234 | 94 | 8 | 13 | 21 | 26 | 0 |
| 1B | Cody Bellinger (6) | LAD | 0.65 | 0.280 | 107 | 3 | 21 | 12 | 30 | 0 |
| 2B | Jonathan Villar (13)** | MIL | 0.32 | 0.271 | 85 | 1 | 3 | 8 | 10 | 5 |
| 2B | Jason Kipnis (17) | CLE | 0.03 | 0.178 | 107 | 0 | 11 | 7 | 18 | 0 |
| SS | Trea Turner (8)** | WAS | 0.70 | 0.284 | 116 | 1 | 14 | 7 | 20 | 12 |
| SS | Nick Ahmed (10) | ARI | 0.65 | 0.262 | 84 | 5 | 13 | 17 | 25 | 1 |
| SS | Orlando Arcia (20) | MIL | 0.12 | 0.190 | 84 | 2 | 5 | 8 | 11 | 1 |
| 3B | Kris Bryant (7)** | CHC | 0.49 | 0.291 | 79 | 2 | 13 | 11 | 22 | 0 |
| 3B | Scott Kingery (11) | PHI | 0.44 | 0.225 | 89 | 2 | 12 | 13 | 23 | 3 |
| C | Yadier Molina (3)** | STL | 0.63 | 0.260 | 100 | 6 | 10 | 16 | 20 | 2 |
| C | Salvador Perez (14) | KC | 0.17 | 0.265 | 34 | 1 | 6 | 3 | 8 | 0 |
| OF | Aaron Judge (4)** | NYY | 1.08 | 0.317 | 101 | 7 | 24 | 18 | 35 | 2 |
| OF | Bryce Harper (6)** | WAS | 0.97 | 0.247 | 89 | 8 | 23 | 19 | 34 | 3 |
| OF | Starling Marte (10)** | PIT | 0.85 | 0.286 | 112 | 3 | 21 | 11 | 29 | 8 |
| OF | Gregory Polanco (26) | PIT | 0.53 | 0.198 | 101 | 6 | 15 | 16 | 25 | 1 |
| 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 | Patrick Corbin (4)** | ARI | 1.26 | 4 | 0 | 0 | 2.2500 | 6 | 6 | 40.0 | 0.7500 | 55 |
| SP | Chris Sale (16)** | BOS | 0.91 | 2 | 1 | 0 | 2.3143 | 6 | 6 | 35.0 | 0.9714 | 45 |
| SP | Aaron Nola (22)** | PHI | 0.82 | 3 | 1 | 0 | 2.5826 | 6 | 6 | 38.1 | 0.9652 | 28 |
| SP | Masahiro Tanaka (26)** | NYY | 0.71 | 4 | 2 | 0 | 4.3714 | 6 | 6 | 35.0 | 1.0286 | 37 |
| SP | Jake Junis (32)** | KC | 0.64 | 3 | 2 | 0 | 3.3402 | 5 | 5 | 32.1 | 0.8660 | 25 |
| SP | Tyler Chatwood (35) | CHC | 0.62 | 2 | 3 | 0 | 2.8256 | 5 | 5 | 28.2 | 1.4651 | 27 |
| SP | Dallas Keuchel (58) | HOU | 0.38 | 1 | 4 | 0 | 4.0000 | 6 | 6 | 36.0 | 1.3056 | 28 |
| SP | Jameson Taillon (61) | PIT | 0.37 | 2 | 3 | 0 | 4.8316 | 6 | 6 | 31.2 | 1.2316 | 29 |
| SP | Steven Matz (68) | NYM | 0.27 | 1 | 2 | 0 | 4.9846 | 5 | 5 | 21.2 | 1.2923 | 26 |
| SP | Sonny Gray (79) | NYY | 0.01 | 1 | 2 | 0 | 6.6667 | 6 | 6 | 27.0 | 1.9259 | 23 |
| SP | Matt Harvey (80) | NYM | -0.01 | 0 | 2 | 0 | 5.7600 | 7 | 4 | 25.0 | 1.4400 | 19 |
| SP | Lucas Giolito (84) | CHW | -0.21 | 1 | 3 | 0 | 7.7143 | 5 | 5 | 25.2 | 1.7143 | 11 |
| RP | Jeurys Familia (2)** | NYM | 1.03 | 1 | 1 | 9 | 1.8000 | 15 | 0 | 15.0 | 1.0667 | 18 |
| RP | Brad Hand (8)** | SD | 0.75 | 1 | 3 | 6 | 3.2927 | 13 | 0 | 13.2 | 1.2439 | 21 |
| RP | Arodys Vizcaino (16)** | ATL | 0.60 | 1 | 1 | 3 | 1.4211 | 13 | 0 | 12.2 | 1.1842 | 15 |
| RP | Shane Greene (26) | DET | 0.41 | 1 | 2 | 4 | 5.7273 | 12 | 0 | 11.0 | 1.5455 | 13 |
| RP | Fernando Rodney (30) | MIN | 0.27 | 1 | 2 | 3 | 5.8696 | 9 | 0 | 7.2 | 2.0870 | 8 |