Boston Red Sox vs Seattle Mariners · 2026 Season
Last updated: April 15, 2026
6 meetings tracked · closing-line graded
Across 6 2026 season meetings, Series tied 3-3. Games have averaged 10.2 combined points.
RECORD
3-3
MEETINGS
6
ATS
2-4
O / U
4-2
Key Insights
- ▸Series tied 3-3 across 6 tracked meetings.
- ▸Games have averaged 10.2 combined points.
- ▸Seattle Mariners have been the better ATS side (4-2).
- ▸Strong Over trend: 4-2 O/U.
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Frequently Asked Questions
What is the Boston Red Sox vs Seattle Mariners record all-time?▾
Across 6 all-time meetings, the Boston Red Sox lead the series 3-3.
What is the ATS trend in Boston Red Sox vs Seattle Mariners games?▾
ATS: Boston Red Sox are 2-4 vs the spread in these matchups. Seattle Mariners are 4-2.
Do Boston Red Sox vs Seattle Mariners games go over or under?▾
Over/under: games between Boston Red Sox and Seattle Mariners have gone over 4 times and under 2 times, with an average combined score of 10.2.
When did Boston Red Sox and Seattle Mariners last play?▾
See Last Meetings section for detailed score, spread, and total data from the most recent Boston Red Sox vs Seattle Mariners games.
Where can I see the 5-year Boston Red Sox vs Seattle Mariners history?▾
A 5-year head-to-head page tracks every Boston Red Sox vs Seattle Mariners meeting from the last five full seasons. Link at the bottom of this page.