| Month | Game | Strat Date | + | Away | Pitcher | Balance | At | Home | Pitcher | Balance |
| September | 1 | 9/9/2020 | TAM | Johan Oviedo | 6L | At | OAK | Kyle Gibson | 1R | |
| September | 2 | 9/10/2020 | TAM | Rick Porcello | 5L | At | OAK | Dylan Cease | 5R | |
| September | 3 | 9/11/2020 | TAM | Kris Bubic* | 1R | At | OAK | Merrill Kelly | 6L | |
| September | 4 | 9/12/2020 | OAK | Michael Pineda | 7R | At | SYI | German Marquez | 3R | |
| September | 5 | 9/13/2020 | OAK | Jaime Barria | 9R | At | SYI | Antonio Senzatela | E | |
| September | 6 | 9/14/2020 | OAK | Kyle Gibson | 1R | At | SYI | Johnny Cueto | 3R | |
| September | OFF | 9/15/2020 | ||||||||
| September | 7 | 9/16/2020 | + | OAK | Dylan Cease | 5R | At | HOH | Logan Webb | E |
| September | 8 | 9/17/2020 | + | OAK | Michael Pineda | 7R | At | HOH | Nathan Eovaldi | 9L |
| September | 9 | 9/18/2020 | + | OAK | David Peterson* | 3L | At | HOH | Dean Kremer | 5L |
| September | 10 | 9/19/2020 | + | OAK | Kyle Gibson | 1R | At | HOH | Zach Davies | 7L |
| September | 11 | 9/20/2020 | + | OAK | Jaime Barria | 9R | At | HOH | Justin Dunn | 4R |
| September | 12 | 9/21/2020 | + | AAR | Sixto Sanchez | 4L | At | OAK | Dylan Cease | 5R |
| September | 13 | 9/22/2020 | + | AAR | Adam Wainwright | 2R | At | OAK | Michael Pineda | 7R |
| September | 14 | 9/23/2020 | + | AAR | Jacob Degrom | 1R | At | OAK | Merrill Kelly | 6L |
| September | 15 | 9/24/2020 | + | AAR | Taylor Clarke | 3L | At | OAK | Kyle Gibson | 1R |
| September | OFF | 9/25/2020 | ||||||||
| September | 16 | 9/26/2020 | OAK | Dylan Cease | 5R | At | COL | Brandon Woodruff | 1L | |
| September | 17 | 9/27/2020 | OAK | Michael Pineda | 7R | At | COL | Andrew Heaney* | E | |
| September | 18 | 9/28/2020 | OAK | Brad Keller | 3R | At | COL | Tyler Mahle | 1L | |
| September | 19 | 9/29/2020 | SRD | Dallas Keuchel* | 2L | At | OAK | John Means* | 1R | |
| September | 20 | 9/30/2020 | SRD | Yu Darvish | 1R | At | OAK | Kyle Gibson | 1R | |
| September | 21 | 10/1/2020 | SRD | Ian Anderson | 4L | At | OAK | Dylan Cease | 5R | |
| September | 22 | 10/2/2020 | OAK | Merrill Kelly | 6L | At | CAL | J.A. Happ* | 4L | |
| September | 23 | 10/3/2020 | OAK | Brad Keller | 3R | At | CAL | Max Fried* | 2R | |
| September | 24 | 10/4/2020 | OAK | John Means* | 1R | At | CAL | Jon Lester* | 2L | |
| + Indicates In Division Game | ||||||||||