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MLB Head-to-Head
Boston Red Sox

Boston Red Sox

VS

66 - 48
Seattle Mariners

Seattle Mariners

Boston Red Sox vs Seattle Mariners

Head-to-Head History (2010–2026)

114

Total Games

66

Sox Wins

48

Mariners Wins

0

Draws

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All Matchups (114)

Wed, Sep 2, 2026
MLB Regular Season
Seattle Mariners @ Boston Red Sox
8 - 3
Fenway Park, Boston, MA | NESN
Tue, Sep 1, 2026
MLB Regular Season
Seattle Mariners @ Boston Red Sox
9 - 6
Fenway Park, Boston, MA | NESN
Mon, Aug 31, 2026
MLB Regular Season
Seattle Mariners @ Boston Red Sox
8 - 9
Fenway Park, Boston, MA | NESN
Sun, Jun 21, 2026
MLB Regular Season
Boston Red Sox @ Seattle Mariners
1 - 3
T-Mobile Park, Seattle, WA | NESN
Sat, Jun 20, 2026
MLB Regular Season
Boston Red Sox @ Seattle Mariners
5 - 1
T-Mobile Park, Seattle, WA | NESN
Fri, Jun 19, 2026
MLB Regular Season
Boston Red Sox @ Seattle Mariners
6 - 2
T-Mobile Park, Seattle, WA | NESN
Wed, Jun 18, 2025
MLB Regular Season
Boston Red Sox @ Seattle Mariners
3 - 1
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), NESN
Tue, Jun 17, 2025
MLB Regular Season
Boston Red Sox @ Seattle Mariners
0 - 8
T-Mobile Park, Seattle, WA | NESN
Mon, Jun 16, 2025
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 0
T-Mobile Park, Seattle, WA | NESN
Thu, Apr 24, 2025
MLB Regular Season
Seattle Mariners @ Boston Red Sox
4 - 3
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Wed, Apr 23, 2025
MLB Regular Season
Seattle Mariners @ Boston Red Sox
8 - 5
Fenway Park, Boston, MA | NESN
Tue, Apr 22, 2025
MLB Regular Season
Seattle Mariners @ Boston Red Sox
3 - 8
Fenway Park, Boston, MA | NESN
Wed, Jul 31, 2024
MLB Regular Season
Seattle Mariners @ Boston Red Sox
2 - 3
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Tue, Jul 30, 2024
MLB Regular Season
Seattle Mariners @ Boston Red Sox
10 - 6
Fenway Park, Boston, MA | NESN
Mon, Jul 29, 2024
MLB Regular Season
Seattle Mariners @ Boston Red Sox
7 - 14
Fenway Park, Boston, MA | NESN
Sun, Mar 31, 2024
MLB Regular Season
Boston Red Sox @ Seattle Mariners
5 - 1
T-Mobile Park, Seattle, WA | NESN
Sat, Mar 30, 2024
MLB Regular Season
Boston Red Sox @ Seattle Mariners
3 - 4
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), NESN
Fri, Mar 29, 2024
MLB Regular Season
Boston Red Sox @ Seattle Mariners
0 - 1
T-Mobile Park, Seattle, WA | NESN
Thu, Mar 28, 2024
MLB Regular Season
Boston Red Sox @ Seattle Mariners
6 - 4
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), NESN
Wed, Aug 2, 2023
MLB Regular Season
Boston Red Sox @ Seattle Mariners
3 - 6
T-Mobile Park, Seattle, WA | NESN
Tue, Aug 1, 2023
MLB Regular Season
Boston Red Sox @ Seattle Mariners
6 - 4
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), NESN
Mon, Jul 31, 2023
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 6
T-Mobile Park, Seattle, WA | NESN
Wed, May 17, 2023
MLB Regular Season
Seattle Mariners @ Boston Red Sox
3 - 12
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Tue, May 16, 2023
MLB Regular Season
Seattle Mariners @ Boston Red Sox
4 - 9
Fenway Park, Boston, MA | NESN
Mon, May 15, 2023
MLB Regular Season
Seattle Mariners @ Boston Red Sox
10 - 1
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Sun, Jun 12, 2022
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 0
T-Mobile Park, Seattle, WA | NESN
Sat, Jun 11, 2022
MLB Regular Season
Boston Red Sox @ Seattle Mariners
6 - 7
T-Mobile Park, Seattle, WA | NESN
Fri, Jun 10, 2022
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 3
T-Mobile Park, Seattle, WA | NESN
Sun, May 22, 2022
MLB Regular Season
Seattle Mariners @ Boston Red Sox
4 - 8
Fenway Park, Boston, MA | NESN
Sat, May 21, 2022
MLB Regular Season
Seattle Mariners @ Boston Red Sox
5 - 6
Fenway Park, Boston, MA | NESN
Fri, May 20, 2022
MLB Regular Season
Seattle Mariners @ Boston Red Sox
3 - 7
Fenway Park, Boston, MA | NESN
Thu, May 19, 2022
MLB Regular Season
Seattle Mariners @ Boston Red Sox
6 - 12
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Wed, Sep 15, 2021
MLB Regular Season
Boston Red Sox @ Seattle Mariners
9 - 4
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), NESN
Tue, Sep 14, 2021
MLB Regular Season
Boston Red Sox @ Seattle Mariners
8 - 4
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), NESN
Mon, Sep 13, 2021
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 5
T-Mobile Park, Seattle, WA | NESN
Sun, Apr 25, 2021
MLB Regular Season
Seattle Mariners @ Boston Red Sox
3 - 5
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Sat, Apr 24, 2021
MLB Regular Season
Seattle Mariners @ Boston Red Sox
8 - 2
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Fri, Apr 23, 2021
MLB Regular Season
Seattle Mariners @ Boston Red Sox
5 - 6
Fenway Park, Boston, MA | NESN
Thu, Apr 22, 2021
MLB Regular Season
Seattle Mariners @ Boston Red Sox
7 - 3
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Sun, May 12, 2019
MLB Regular Season
Seattle Mariners @ Boston Red Sox
2 - 11
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Sat, May 11, 2019
MLB Regular Season
Seattle Mariners @ Boston Red Sox
5 - 9
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Fri, May 10, 2019
MLB Regular Season
Seattle Mariners @ Boston Red Sox
1 - 14
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Sun, Mar 31, 2019
MLB Regular Season
Boston Red Sox @ Seattle Mariners
8 - 10
T-Mobile Park, Seattle, WA | NESN
Sat, Mar 30, 2019
MLB Regular Season
Boston Red Sox @ Seattle Mariners
5 - 6
T-Mobile Park, Seattle, WA | NESN
Fri, Mar 29, 2019
MLB Regular Season
Boston Red Sox @ Seattle Mariners
7 - 6
T-Mobile Park, Seattle, WA | NESN
Thu, Mar 28, 2019
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 12
T-Mobile Park, Seattle, WA | ESPN/ESPN App
Sun, Jun 24, 2018
MLB Regular Season
Seattle Mariners @ Boston Red Sox
0 - 5
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Sat, Jun 23, 2018
MLB Regular Season
Seattle Mariners @ Boston Red Sox
7 - 2
Fenway Park, Boston, MA | FOX
Fri, Jun 22, 2018
MLB Regular Season
Seattle Mariners @ Boston Red Sox
10 - 14
Fenway Park, Boston, MA | NESN
Sun, Jun 17, 2018
MLB Regular Season
Boston Red Sox @ Seattle Mariners
9 - 3
Safeco Field, Seattle, WA | NESN
Sat, Jun 16, 2018
MLB Regular Season
Boston Red Sox @ Seattle Mariners
0 - 1
Safeco Field, Seattle, WA | FOX
Fri, Jun 15, 2018
MLB Regular Season
Boston Red Sox @ Seattle Mariners
6 - 7
Safeco Field, Seattle, WA | NESN
Thu, Jun 14, 2018
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 1
Safeco Field, Seattle, WA | MLBN (out-of-market only), NESN
Wed, Jul 26, 2017
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 0
Safeco Field, Seattle, WA | NESN
Tue, Jul 25, 2017
MLB Regular Season
Boston Red Sox @ Seattle Mariners
5 - 6
Safeco Field, Seattle, WA | NESN
Mon, Jul 24, 2017
MLB Regular Season
Boston Red Sox @ Seattle Mariners
0 - 4
Safeco Field, Seattle, WA | NESN
Sun, May 28, 2017
MLB Regular Season
Seattle Mariners @ Boston Red Sox
5 - 0
Fenway Park, Boston, MA | NESN
Sat, May 27, 2017
MLB Regular Season
Seattle Mariners @ Boston Red Sox
0 - 6
Fenway Park, Boston, MA | NESN
Fri, May 26, 2017
MLB Regular Season
Seattle Mariners @ Boston Red Sox
0 - 3
Fenway Park, Boston, MA | MLBN (out-of-market only), NESN
Thu, Aug 4, 2016
MLB Regular Season
Boston Red Sox @ Seattle Mariners
3 - 2
Safeco Field, Seattle, WA | NESN
Wed, Aug 3, 2016
MLB Regular Season
Boston Red Sox @ Seattle Mariners
1 - 3
Safeco Field, Seattle, WA | NESN
Tue, Aug 2, 2016
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 5
Safeco Field, Seattle, WA | MLBN (out-of-market only), NESN
Mon, Aug 1, 2016
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 1
Safeco Field, Seattle, WA | NESN
Sun, Jun 19, 2016
MLB Regular Season
Seattle Mariners @ Boston Red Sox
1 - 2
Fenway Park, Boston, MA | NESN
Sat, Jun 18, 2016
MLB Regular Season
Seattle Mariners @ Boston Red Sox
2 - 6
Fenway Park, Boston, MA | NESN
Fri, Jun 17, 2016
MLB Regular Season
Seattle Mariners @ Boston Red Sox
8 - 4
Fenway Park, Boston, MA | NESN
Sun, Aug 16, 2015
MLB Regular Season
Seattle Mariners @ Boston Red Sox
10 - 8
Fenway Park, Boston, MA | NESN
Sat, Aug 15, 2015
MLB Regular Season
Seattle Mariners @ Boston Red Sox
10 - 22
Fenway Park, Boston, MA | MLBN, NESN
Fri, Aug 14, 2015
MLB Regular Season
Seattle Mariners @ Boston Red Sox
1 - 15
Fenway Park, Boston, MA | NESN
Sun, May 17, 2015
MLB Regular Season
Boston Red Sox @ Seattle Mariners
0 - 5
Safeco Field, Seattle, WA | NESN
Sat, May 16, 2015
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 2
Safeco Field, Seattle, WA | MLBN, NESN
Fri, May 15, 2015
MLB Regular Season
Boston Red Sox @ Seattle Mariners
1 - 2
Safeco Field, Seattle, WA | NESN
Thu, May 14, 2015
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 1
Safeco Field, Seattle, WA | NESN
Sun, Aug 24, 2014
MLB Regular Season
Seattle Mariners @ Boston Red Sox
8 - 6
Fenway Park, Boston, MA | NESN
Sat, Aug 23, 2014
MLB Regular Season
Seattle Mariners @ Boston Red Sox
7 - 3
Fenway Park, Boston, MA | NESN
Fri, Aug 22, 2014
MLB Regular Season
Seattle Mariners @ Boston Red Sox
5 - 3
Fenway Park, Boston, MA | NESN
Wed, Jun 25, 2014
MLB Regular Season
Boston Red Sox @ Seattle Mariners
5 - 4
Safeco Field, Seattle, WA | NESN
Tue, Jun 24, 2014
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 8
Safeco Field, Seattle, WA | NESN
Mon, Jun 23, 2014
MLB Regular Season
Boston Red Sox @ Seattle Mariners
3 - 12
Safeco Field, Seattle, WA | NESN
Thu, Aug 1, 2013
MLB Regular Season
Seattle Mariners @ Boston Red Sox
7 - 8
Fenway Park, Boston, MA | NESN
Wed, Jul 31, 2013
MLB Regular Season
Seattle Mariners @ Boston Red Sox
4 - 5
Fenway Park, Boston, MA | NESN
Tue, Jul 30, 2013
MLB Regular Season
Seattle Mariners @ Boston Red Sox
2 - 8
Fenway Park, Boston, MA | MLBN, NESN
Thu, Jul 11, 2013
MLB Regular Season
Boston Red Sox @ Seattle Mariners
8 - 7
Safeco Field, Seattle, WA | NESN
Wed, Jul 10, 2013
MLB Regular Season
Boston Red Sox @ Seattle Mariners
11 - 4
Safeco Field, Seattle, WA | NESN
Tue, Jul 9, 2013
MLB Regular Season
Boston Red Sox @ Seattle Mariners
11 - 8
Safeco Field, Seattle, WA | NESN
Mon, Jul 8, 2013
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 11
Safeco Field, Seattle, WA
Wed, Sep 5, 2012
MLB Regular Season
Boston Red Sox @ Seattle Mariners
1 - 2
Safeco Field, Seattle, WA | NESN
Tue, Sep 4, 2012
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 3
Safeco Field, Seattle, WA | NESN
Mon, Sep 3, 2012
MLB Regular Season
Boston Red Sox @ Seattle Mariners
1 - 4
Safeco Field, Seattle, WA | NESN
Sun, Jul 1, 2012
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 1
Safeco Field, Seattle, WA | NESN
Sat, Jun 30, 2012
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 3
Safeco Field, Seattle, WA | MLBN, NESN
Fri, Jun 29, 2012
MLB Regular Season
Boston Red Sox @ Seattle Mariners
5 - 0
Safeco Field, Seattle, WA | NESN
Thu, Jun 28, 2012
MLB Regular Season
Boston Red Sox @ Seattle Mariners
0 - 1
Safeco Field, Seattle, WA | NESN
Tue, May 15, 2012
MLB Regular Season
Seattle Mariners @ Boston Red Sox
0 - 5
Fenway Park, Boston, MA | NESN
Mon, May 14, 2012
MLB Regular Season
Seattle Mariners @ Boston Red Sox
1 - 6
Fenway Park, Boston, MA | NESN
Sun, Aug 14, 2011
MLB Regular Season
Boston Red Sox @ Seattle Mariners
3 - 5
Safeco Field, Seattle, WA | NESN
Sat, Aug 13, 2011
MLB Regular Season
Boston Red Sox @ Seattle Mariners
4 - 5
Safeco Field, Seattle, WA | NESN
Fri, Aug 12, 2011
MLB Regular Season
Boston Red Sox @ Seattle Mariners
6 - 4
Safeco Field, Seattle, WA | NESN
Sun, Jul 24, 2011
MLB Regular Season
Seattle Mariners @ Boston Red Sox
8 - 12
Fenway Park, Boston, MA | TBS, NESN
Sat, Jul 23, 2011
MLB Regular Season
Seattle Mariners @ Boston Red Sox
1 - 3
Fenway Park, Boston, MA | NESN
Fri, Jul 22, 2011
MLB Regular Season
Seattle Mariners @ Boston Red Sox
4 - 7
Fenway Park, Boston, MA | NESN
Sun, May 1, 2011
MLB Regular Season
Seattle Mariners @ Boston Red Sox
2 - 3
Fenway Park, Boston, MA | NESN
Sat, Apr 30, 2011
MLB Regular Season
Seattle Mariners @ Boston Red Sox
2 - 0
Fenway Park, Boston, MA | NESN
Fri, Apr 29, 2011
MLB Regular Season
Seattle Mariners @ Boston Red Sox
5 - 4
Fenway Park, Boston, MA | NESN
Wed, Sep 15, 2010
MLB Regular Season
Boston Red Sox @ Seattle Mariners
5 - 1
Safeco Field, Seattle, WA | NESN
Tue, Sep 14, 2010
MLB Regular Season
Boston Red Sox @ Seattle Mariners
9 - 6
Safeco Field, Seattle, WA | NESN
Mon, Sep 13, 2010
MLB Regular Season
Boston Red Sox @ Seattle Mariners
5 - 1
Safeco Field, Seattle, WA | NESN
Wed, Aug 25, 2010
MLB Regular Season
Seattle Mariners @ Boston Red Sox
3 - 5
Fenway Park, Boston, MA | NESN
Wed, Aug 25, 2010
MLB Regular Season
Seattle Mariners @ Boston Red Sox
4 - 2
Fenway Park, Boston, MA | NESN
Mon, Aug 23, 2010
MLB Regular Season
Seattle Mariners @ Boston Red Sox
3 - 6
Fenway Park, Boston, MA | NESN
Sun, Jul 25, 2010
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 4
Safeco Field, Seattle, WA | NESN
Sat, Jul 24, 2010
MLB Regular Season
Boston Red Sox @ Seattle Mariners
1 - 5
Safeco Field, Seattle, WA | NESN
Fri, Jul 23, 2010
MLB Regular Season
Boston Red Sox @ Seattle Mariners
2 - 1
Safeco Field, Seattle, WA | NESN
Thu, Jul 22, 2010
MLB Regular Season
Boston Red Sox @ Seattle Mariners
8 - 6
Safeco Field, Seattle, WA | NESN

The Boston Red Sox and Seattle Mariners have faced each other 114 times in the MLB. The all-time series record is 66-48. View the complete head-to-head matchup history between these two MLB teams.

Series records

Decided meetings only, 2010–2026. Every number is from the games listed above.

Longest Boston Red Sox run
7 straight · Sep 14, 2021 – Jun 10, 2022
Longest Seattle Mariners run
3 straight · Aug 22 – Aug 24, 2014
Biggest Boston Red Sox win
15-1 · Aug 14, 2015
Biggest Seattle Mariners win
12-3 · Jun 23, 2014
Boston Red Sox Schedule Seattle Mariners Schedule All MLB Teams
Today's Games