Seattle Mariners vs Boston Red Sox Final — September 1, 2026
Last 10 games
Rest & travelrest and travel
Rest & travelAbout these numbers
Margin of each of the last 10 games this season, oldest to newest (gold = won). Hover a bar for the score margin.
Distance is straight-line from each team's home arena; time-zone change is at game time. Rest counts days since each team's previous game.
The pre-game matchup
The Mariners visited the Red Sox on Tuesday, September 1 at 6:46 PM ET.
The total closed at 7, down from 7.5 at the open. After removing the vig, the closing moneyline (Mariners +100, Red Sox -120) prices the Mariners at 48% and the Red Sox at 52%.
Written from the numbers available before kickoff.
Result
Final score and result vs the closing line
Seattle Mariners 9, Boston Red Sox 6
Seattle Mariners won by 3.
- Against the closing spread (Boston Red Sox +1.5): Seattle Mariners covered.
- Combined score 15 vs the closing total of 7: Over.
- Seattle Mariners closed at +100 on the moneyline (a 48% no-vig market-implied chance).
Market
Closing line and line movement
Mariners +1.5 (-222)
Mariners -1.5 (+174)
Red Sox -120 53%
Red Sox -120 52%
Consensus of US sportsbooks. Open = first line after both teams' previous games; Close = consensus at kickoff. Percentages are the moneyline's no-vig market-implied chances.
Matchup
Head-to-head
The teams have met 23 times since 2023: the Mariners won 10 and the Red Sox 13.
| Date | Score | Line | Total |
|---|---|---|---|
| Aug 31, 2026 | Mariners 8, Red Sox 9 Red Sox won | ||
| Jun 21, 2026 | Red Sox 1, Mariners 3 Mariners won | ||
| Jun 20, 2026 | Red Sox 5, Mariners 1 Red Sox won | ||
| Jun 19, 2026 | Red Sox 6, Mariners 2 Red Sox won | ||
| Jun 18, 2025 | Red Sox 3, Mariners 1 Red Sox won |
Meetings since 2023, most recent first. Line and total are the consensus closing numbers where line history is available.
Teams
Seattle Mariners
- Seattle Mariners team stats
- Los Angeles Angels 3, Seattle Mariners 7 (Sep 27)
- Los Angeles Angels 4, Seattle Mariners 8 (Sep 26)
- Los Angeles Angels 7, Seattle Mariners 5 (Sep 25)
Boston Red Sox
More MLB games on September 1, 2026
- San Diego Padres 3, Cincinnati Reds 4 (Sep 1)
- Toronto Blue Jays 1, Cleveland Guardians 6 (Sep 1)
- San Francisco Giants 12, Pittsburgh Pirates 13 (Sep 1)
- New York Mets 2, Tampa Bay Rays 6 (Sep 1)
- Atlanta Braves 5, Washington Nationals 9 (Sep 1)
- Milwaukee Brewers 9, Chicago Cubs 4 (Sep 1)
- Miami Marlins 6, Kansas City Royals 3 (Sep 1)
- Detroit Tigers 2, Minnesota Twins 15 (Sep 1)
- Athletics 5, Texas Rangers 8 (Sep 1)
- Chicago White Sox 5, Houston Astros 1 (Sep 1)
- Baltimore Orioles 2, Colorado Rockies 4 (Sep 1)
- New York Yankees 7, Los Angeles Angels 3 (Sep 1)
- Philadelphia Phillies 7, Arizona Diamondbacks 1 (Sep 1)
- St. Louis Cardinals 13, Los Angeles Dodgers 8 (Sep 1)
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