| Month | Game | Strat Date | + | Away | Pitcher | Balance | At | Home | Pitcher | Balance |
| September | 1 | 9/9/2020 | GGG | Deivi Garcia | 7L | At | HMA | Sandy Alcantara | 9R | |
| September | 2 | 9/10/2020 | GGG | Garrett Richards | 6R | At | HMA | Brady Singer | E | |
| September | 3 | 9/11/2020 | GGG | Framber Valdez* | 2R | At | HMA | Jesus Luzardo* | E | |
| September | 4 | 9/12/2020 | DUB | Dane Dunning | 5R | At | GGG | Dustin May | 7R | |
| September | 5 | 9/13/2020 | DUB | Carlos Carrasco | 2R | At | GGG | Tanner Roark | 9L | |
| September | 6 | 9/14/2020 | DUB | Shane Bieber | 2L | At | GGG | Brent Suter* | 7R | |
| September | OFF | 9/15/2020 | ||||||||
| September | 7 | 9/16/2020 | + | SRD | Randy Dobnak | 3R | At | GGG | Framber Valdez* | 2R |
| September | 8 | 9/17/2020 | + | SRD | Yu Darvish | 1R | At | GGG | Patrick Sandoval* | 1R |
| September | 9 | 9/18/2020 | + | SRD | Dallas Keuchel* | 2L | At | GGG | Garrett Richards | 6R |
| September | 10 | 9/19/2020 | + | SRD | Vince Velasquez | 3R | At | GGG | Tanner Roark | 9L |
| September | 11 | 9/20/2020 | + | SRD | Alec Mills | 9R | At | GGG | Dustin May | 7R |
| September | 12 | 9/21/2020 | + | GGG | Framber Valdez* | 2R | At | CHI | Julian Merryweather | 7L |
| September | 13 | 9/22/2020 | + | GGG | Patrick Sandoval* | 1R | At | CHI | Jordan Lyles | 2L |
| September | 14 | 9/23/2020 | + | GGG | Garrett Richards | 6R | At | CHI | Ryan Yarbrough* | 1R |
| September | 15 | 9/24/2020 | + | GGG | Tanner Roark | 9L | At | CHI | Kendall Graveman | 7L |
| September | OFF | 9/25/2020 | ||||||||
| September | 16 | 9/26/2020 | + | GGG | Framber Valdez* | 2R | At | TAM | Kris Bubic* | 1R |
| September | 17 | 9/27/2020 | + | GGG | Patrick Sandoval* | 1R | At | TAM | Matt Shoemaker | 1R |
| September | 18 | 9/28/2020 | + | GGG | Garrett Richards | 6R | At | TAM | Johan Oviedo | 6L |
| September | 19 | 9/29/2020 | + | GGG | Tanner Roark | 9L | At | TAM | Tyler Glasnow | 2L |
| September | 20 | 9/30/2020 | + | GGG | Dustin May | 7R | At | TAM | Yusei Kikuchi* | 2R |
| September | 21 | 10/1/2020 | + | CHI | Masahiro Tanaka | 1L | At | GGG | Framber Valdez* | 2R |
| September | 22 | 10/2/2020 | + | CHI | Ryan Yarbrough* | 1R | At | GGG | Patrick Sandoval* | 1R |
| September | 23 | 10/3/2020 | + | CHI | Julian Merryweather | 7L | At | GGG | Deivi Garcia | 7L |
| September | 24 | 10/4/2020 | + | CHI | Kendall Graveman | 7L | At | GGG | Tanner Roark | 9L |
| + Indicates In Division Game | ||||||||||