Seattle Mariners vs Boston Red Sox History: Head-to-Head Record, ATS & Results
In 12 stored meetings the Seattle Mariners lead 6-6 (series even). The average combined score is 8.8. Against the closing spread: Seattle Mariners 4, Boston Red Sox 2 (6 graded).
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Who has won more Seattle Mariners vs Boston Red Sox games?
| Date | Final | Closing spread |
|---|---|---|
| Sep 2, 2026 | Seattle Mariners 8 at Boston Red Sox 3 | Boston Red Sox -1.5 |
| Sep 1, 2026 | Seattle Mariners 9 at Boston Red Sox 6 | Boston Red Sox +1.5 |
| Aug 31, 2026 | Seattle Mariners 8 at Boston Red Sox 9 | Boston Red Sox -1.5 |
| Jun 21, 2026 | Boston Red Sox 1 at Seattle Mariners 3 | Seattle Mariners -1.5 |
| Jun 20, 2026 | Boston Red Sox 5 at Seattle Mariners 1 | Seattle Mariners -1.5 |
| Jun 19, 2026 | Boston Red Sox 6 at Seattle Mariners 2 | Seattle Mariners +1.5 |
| Jun 18, 2025 | Boston Red Sox 3 at Seattle Mariners 1 | n/a |
| Jun 17, 2025 | Boston Red Sox 0 at Seattle Mariners 8 | n/a |
| Jun 16, 2025 | Boston Red Sox 2 at Seattle Mariners 0 | n/a |
| Apr 24, 2025 | Seattle Mariners 4 at Boston Red Sox 3 | n/a |
| Apr 23, 2025 | Seattle Mariners 8 at Boston Red Sox 5 | n/a |
| Apr 22, 2025 | Seattle Mariners 3 at Boston Red Sox 8 | n/a |
From our stored game data (stored history begins with the 2025-26 season); older meetings are not included.
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