| Month | Game | Strat Date | + | Away | Pitcher | Balance | At | Home | Pitcher | Balance |
| September | 1 | 9/9/2018 | AAR | Dan Straily | 3R | At | DYE | Daniel Mengden | 2L | |
| September | 2 | 9/10/2018 | AAR | Noah Syndergaard | 1R | At | DYE | Ivan Nova | 3R | |
| September | 3 | 9/11/2018 | AAR | Jacob Degrom | 3R | At | DYE | Tanner Roark | 1R | |
| September | 4 | 9/12/2018 | DYE | Aaron Nola | 1L | At | VRN | Gerrit Cole | 6L | |
| September | 5 | 9/13/2018 | DYE | Jack Flaherty | 3L | At | VRN | Cole Hamels* | 1L | |
| September | 6 | 9/14/2018 | DYE | Daniel Mengden | 2L | At | VRN | David Price* | 1L | |
| September | OFF | 9/15/2018 | ||||||||
| September | 7 | 9/16/2018 | + | DYE | Aaron Nola | 1L | At | TAM | Zack Godley | 1L |
| September | 8 | 9/17/2018 | + | DYE | Ivan Nova | 3R | At | TAM | Chris Archer | 3R |
| September | 9 | 9/18/2018 | + | DYE | Jack Flaherty | 3L | At | TAM | Kevin Gausman | 2L |
| September | 10 | 9/19/2018 | + | DYE | Daniel Mengden | 2L | At | TAM | Luis Severino | 1R |
| September | 11 | 9/20/2018 | + | DYE | Aaron Nola | 1L | At | TAM | Steven Matz* | 2L |
| September | 12 | 9/21/2018 | + | SRD | Adam Plutko | 6R | At | DYE | Steven Wright | 1R |
| September | 13 | 9/22/2018 | + | SRD | Chris Sale* | 2L | At | DYE | Ryan Borucki* | 1L |
| September | 14 | 9/23/2018 | + | SRD | Homer Bailey | 2R | At | DYE | Jack Flaherty | 3L |
| September | 15 | 9/24/2018 | + | SRD | Ian Kennedy | 2L | At | DYE | Aaron Nola | 1L |
| September | OFF | 9/25/2018 | ||||||||
| September | 16 | 9/26/2018 | DYE | Daniel Mengden | 2L | At | WRK | Joe Musgrove | 4R | |
| September | 17 | 9/27/2018 | DYE | Ryan Borucki* | 1L | At | WRK | Joey Lucchesi* | 4L | |
| September | 18 | 9/28/2018 | DYE | Jack Flaherty | 3L | At | WRK | C.C. Sabathia* | 3L | |
| September | 19 | 9/29/2018 | OAK | Jameson Taillon | 2R | At | DYE | Aaron Nola | 1L | |
| September | 20 | 9/30/2018 | OAK | Matt Boyd* | E | At | DYE | Tanner Roark | 1R | |
| September | 21 | 10/1/2018 | OAK | Nick Pivetta | 1R | At | DYE | Daniel Mengden | 2L | |
| September | 22 | 10/2/2018 | DYE | Ivan Nova | 3R | At | CAL | Dereck Rodriguez | 2R | |
| September | 23 | 10/3/2018 | DYE | Aaron Nola | 1L | At | CAL | Wade Leblanc* | 1R | |
| September | 24 | 10/4/2018 | DYE | Steven Wright | 1R | At | CAL | Clay Buchholz | 5L | |
| + Indicates In Division Game | ||||||||||