Spring Training
| Date | OPP | Time / TV | Venue | Home Starter | Away Starter | Buy Tickets |
|---|---|---|---|---|---|---|
| Feb 28, 2021 | @ | Peoria Sports Complex | — | A. Morejon (-, 0.00 ERA) A. Morejon (-, 0.00 ERA) | — | |
| Mar 1, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 2, 2021 | @ | Salt River Fields at Talking Stick | — | — | — | |
| Mar 3, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 4, 2021 | @ | Surprise Stadium | — | — | — | |
| Mar 5, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 6, 2021 | @ | Camelback Ranch-Glendale | — | — | — | |
| Mar 7, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 9, 2021 | @ | Camelback Ranch-Glendale | — | — | — | |
| Mar 10, 2021 | @ | Salt River Fields at Talking Stick | — | — | — | |
| Mar 11, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 12, 2021 | @ | HoHoKam Stadium | — | — | — | |
| Mar 13, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 14, 2021 | @ | Goodyear Ballpark | — | — | — | |
| Mar 15, 2021 | @ | American Family Fields of Phoenix | — | — | — | |
| Mar 16, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 17, 2021 | @ | Sloan Park | — | — | — | |
| Mar 18, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 20, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 21, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 22, 2021 | @ | Surprise Stadium | — | — | — | |
| Mar 23, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 24, 2021 | @ | Scottsdale Stadium | — | — | — | |
| Mar 25, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 26, 2021 | vs | Peoria Sports Complex | — | — | — | |
| Mar 27, 2021 | @ | Tempe Diablo Stadium | — | — | — | |
| Mar 28, 2021 | @ | Goodyear Ballpark | — | — | — | |
| Mar 29, 2021 | vs | Peoria Sports Complex | — | — | — |
