Head to Head
| MLB | 2021/09/14 02:10 | BOS Red Sox v SEA Mariners | L | 4-5 |
| MLB | 2021/04/25 17:10 | SEA Mariners v BOS Red Sox | W | 3-5 |
| MLB | 2021/04/24 17:10 | SEA Mariners v BOS Red Sox | L | 8-2 |
| MLB | 2021/04/23 23:10 | SEA Mariners v BOS Red Sox | W | 5-6 |
| MLB | 2021/04/22 23:10 | SEA Mariners v BOS Red Sox | L | 7-3 |
| MLB | 2019/05/12 17:05 | SEA Mariners v BOS Red Sox | W | 2-11 |
| MLB | 2019/05/11 17:05 | SEA Mariners v BOS Red Sox | W | 5-9 |
| MLB | 2019/05/10 23:10 | SEA Mariners v BOS Red Sox | W | 1-14 |
Home History
| MLB | 2021/09/14 02:10 | BOS Red Sox v SEA Mariners | L | 4-5 |
| MLB | 2021/09/12 18:10 | BOS Red Sox v CHI White Sox | L | 1-2 |
| MLB | 2021/09/11 23:10 | BOS Red Sox v CHI White Sox | W | 9-8 |
| MLB | 2021/09/11 00:10 | BOS Red Sox v CHI White Sox | L | 3-4 |
| MLB | 2021/09/08 23:10 | TB Rays v BOS Red Sox | W | 1-2 |
| MLB | 2021/09/07 23:10 | TB Rays v BOS Red Sox | L | 12-7 |
| MLB | 2021/09/06 17:10 | TB Rays v BOS Red Sox | L | 11-10 |
| MLB | 2021/09/05 17:10 | CLE Guardians v BOS Red Sox | L | 11-5 |
Away History
| MLB | 2021/09/14 02:10 | BOS Red Sox v SEA Mariners | W | 4-5 |
| MLB | 2021/09/12 20:10 | ARI Diamondbacks v SEA Mariners | L | 5-4 |
| MLB | 2021/09/12 01:10 | ARI Diamondbacks v SEA Mariners | L | 7-3 |
| MLB | 2021/09/11 02:10 | ARI Diamondbacks v SEA Mariners | W | 4-5 |
| MLB | 2021/09/08 18:10 | SEA Mariners v HOU Astros | W | 8-5 |
| MLB | 2021/09/08 00:10 | SEA Mariners v HOU Astros | L | 4-5 |
| MLB | 2021/09/06 23:10 | SEA Mariners v HOU Astros | L | 2-11 |
| MLB | 2021/09/05 20:10 | SEA Mariners v ARI Diamondbacks | W | 10-4 |