Boston Red Sox vs Seattle Mariners
Head-to-head history, form, and our model’s take on this MLB matchup.
Head-to-head
0
BOS
—
3
SEA
Last 3 meetings
Jun 21, 2026SEASEA NaN–NaN BOSSEA
Jun 20, 2026SEASEA NaN–NaN BOSSEA
Jun 19, 2026SEASEA NaN–NaN BOSSEA
Trend: SEA leads the series 3–0 in the last 3 meetings.
Team hubs: Boston Red Sox · Seattle Mariners. See all MLB games and our methodology.
Data sourced from ESPN and may be delayed or estimated. Not affiliated with ESPN, any league, or any team. Predictions are informational only — not betting advice.