Head to Head
| MLB Spring Training | 2021/03/25 20:05 | SEA Mariners v OAK Athletics | L | 5-8 |
| MLB Spring Training | 2021/03/06 20:10 | OAK Athletics v SEA Mariners | D | 1-1 |
| MLB | 2020/09/27 19:10 | SEA Mariners v OAK Athletics | L | 2-6 |
| MLB | 2020/09/26 23:10 | OAK Athletics v SEA Mariners | W | 3-12 |
| MLB | 2020/09/26 20:10 | SEA Mariners v OAK Athletics | W | 5-1 |
| MLB | 2020/09/26 01:40 | SEA Mariners v OAK Athletics | L | 1-3 |
| MLB | 2020/09/15 00:05 | OAK Athletics v SEA Mariners | L | 9-0 |
| MLB | 2020/09/14 21:10 | OAK Athletics v SEA Mariners | W | 5-6 |
Home History
| MLB | 2021/05/20 02:10 | DET Tigers v SEA Mariners | L | 6-2 |
| MLB | 2021/05/19 02:10 | DET Tigers v SEA Mariners | L | 5-0 |
| MLB | 2021/05/18 02:10 | DET Tigers v SEA Mariners | L | 4-1 |
| MLB | 2021/05/16 20:10 | CLE Guardians v SEA Mariners | W | 2-3 |
| MLB | 2021/05/16 01:10 | CLE Guardians v SEA Mariners | W | 3-7 |
| MLB | 2021/05/15 02:10 | CLE Guardians v SEA Mariners | W | 3-7 |
| MLB | 2021/05/14 02:10 | CLE Guardians v SEA Mariners | L | 4-2 |
| MLB | 2021/05/13 02:10 | SEA Mariners v LA Dodgers | L | 1-7 |
Away History
| MLB | 2021/05/20 01:40 | HOU Astros v OAK Athletics | L | 8-1 |
| MLB | 2021/05/19 01:40 | HOU Astros v OAK Athletics | W | 5-6 |
| MLB | 2021/05/16 18:10 | OAK Athletics v MIN Twins | W | 7-6 |
| MLB | 2021/05/15 20:05 | OAK Athletics v MIN Twins | L | 4-5 |
| MLB | 2021/05/15 00:10 | OAK Athletics v MIN Twins | W | 6-1 |
| MLB | 2021/05/13 23:10 | OAK Athletics v BOS Red Sox | L | 1-8 |
| MLB | 2021/05/12 23:10 | OAK Athletics v BOS Red Sox | W | 4-1 |
| MLB | 2021/05/11 23:10 | OAK Athletics v BOS Red Sox | W | 3-2 |