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MLB Head-to-Head
Baltimore Orioles

Baltimore Orioles

VS

55 - 53
Seattle Mariners

Seattle Mariners

Baltimore Orioles vs Seattle Mariners

Head-to-Head History (2010–2026)

108

Total Games

55

Orioles Wins

53

Mariners Wins

0

Draws

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All Matchups (108)

Thu, Jun 18, 2026
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
0 - 3
T-Mobile Park, Seattle, WA | MASN
Wed, Jun 17, 2026
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
5 - 3
T-Mobile Park, Seattle, WA | MASN
Tue, Jun 16, 2026
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
1 - 3
T-Mobile Park, Seattle, WA | MASN
Thu, Jun 11, 2026
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
5 - 7
Oriole Park at Camden Yards, Baltimore, MD | ESPN/ESPN App
Wed, Jun 10, 2026
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 7
Oriole Park at Camden Yards, Baltimore, MD | MASN
Tue, Jun 9, 2026
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
6 - 5
Oriole Park at Camden Yards, Baltimore, MD | MASN
Mon, Jun 8, 2026
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
6 - 3
Oriole Park at Camden Yards, Baltimore, MD | MASN
Thu, Aug 14, 2025
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
3 - 5
Oriole Park at Camden Yards, Baltimore, MD | MLBN (out-of-market only), MASN 2, MASN+
Wed, Aug 13, 2025
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
3 - 4
Oriole Park at Camden Yards, Baltimore, MD | MASN, MASN+
Tue, Aug 12, 2025
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
1 - 0
Oriole Park at Camden Yards, Baltimore, MD | MASN, MASN+
Thu, Jun 5, 2025
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
4 - 3
T-Mobile Park, Seattle, WA | MASN 2, MASN+
Wed, Jun 4, 2025
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 2
T-Mobile Park, Seattle, WA | MASN 2, MASN+
Tue, Jun 3, 2025
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
5 - 1
T-Mobile Park, Seattle, WA | MASN 2, MASN+
Thu, Jul 4, 2024
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 7
T-Mobile Park, Seattle, WA | MASN 2
Wed, Jul 3, 2024
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
4 - 1
T-Mobile Park, Seattle, WA | MASN 2
Tue, Jul 2, 2024
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 0
T-Mobile Park, Seattle, WA | MASN 2
Sun, May 19, 2024
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
3 - 6
Oriole Park at Camden Yards, Baltimore, MD | MLBN (out-of-market only), MASN 2
Sat, May 18, 2024
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 3
Oriole Park at Camden Yards, Baltimore, MD | FS1, MASN 2
Fri, May 17, 2024
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 9
Oriole Park at Camden Yards, Baltimore, MD | MASN 2
Sun, Aug 13, 2023
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
5 - 3
T-Mobile Park, Seattle, WA | MASN 2
Sat, Aug 12, 2023
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
1 - 0
T-Mobile Park, Seattle, WA | FS1, MASN 2
Fri, Aug 11, 2023
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 9
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), MASN 2
Sun, Jun 25, 2023
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 3
Oriole Park at Camden Yards, Baltimore, MD | MASN
Sat, Jun 24, 2023
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 6
Oriole Park at Camden Yards, Baltimore, MD | MASN
Fri, Jun 23, 2023
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
13 - 1
Oriole Park at Camden Yards, Baltimore, MD | MASN
Wed, Jun 29, 2022
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 9
T-Mobile Park, Seattle, WA | MASN 2
Tue, Jun 28, 2022
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
0 - 2
T-Mobile Park, Seattle, WA | MASN 2
Mon, Jun 27, 2022
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
9 - 2
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), MASN 2
Thu, Jun 2, 2022
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
7 - 6
Oriole Park at Camden Yards, Baltimore, MD | MLBN (out-of-market only), MASN 2
Wed, Jun 1, 2022
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 9
Oriole Park at Camden Yards, Baltimore, MD | MASN
Tue, May 31, 2022
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
10 - 0
Oriole Park at Camden Yards, Baltimore, MD | MASN 2
Wed, May 5, 2021
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
6 - 0
T-Mobile Park, Seattle, WA | MLBN (out-of-market only), MASN
Tue, May 4, 2021
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 5
T-Mobile Park, Seattle, WA | MASN 2
Mon, May 3, 2021
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
5 - 3
T-Mobile Park, Seattle, WA | MASN
Thu, Apr 15, 2021
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 2
Oriole Park at Camden Yards, Baltimore, MD | MASN
Thu, Apr 15, 2021
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 1
Oriole Park at Camden Yards, Baltimore, MD | MASN
Tue, Apr 13, 2021
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 3
Oriole Park at Camden Yards, Baltimore, MD | MLBN (out-of-market only), MASN
Tue, Apr 13, 2021
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
6 - 7
Oriole Park at Camden Yards, Baltimore, MD | MASN
Sun, Sep 22, 2019
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
1 - 2
Oriole Park at Camden Yards, Baltimore, MD | MASN
Sat, Sep 21, 2019
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
7 - 6
Oriole Park at Camden Yards, Baltimore, MD | MASN
Fri, Sep 20, 2019
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
3 - 5
Oriole Park at Camden Yards, Baltimore, MD | MASN
Sun, Jun 23, 2019
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 13
T-Mobile Park, Seattle, WA | MASN 2
Sat, Jun 22, 2019
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
8 - 4
T-Mobile Park, Seattle, WA | MASN
Fri, Jun 21, 2019
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
9 - 10
T-Mobile Park, Seattle, WA | MASN 2
Thu, Jun 20, 2019
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 5
T-Mobile Park, Seattle, WA | MASN 2
Wed, Sep 5, 2018
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 5
Safeco Field, Seattle, WA | MLBN (out-of-market only), MASN 2
Tue, Sep 4, 2018
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
5 - 3
Safeco Field, Seattle, WA | MASN 2
Mon, Sep 3, 2018
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
1 - 2
Safeco Field, Seattle, WA | MASN
Thu, Jun 28, 2018
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 2
Oriole Park at Camden Yards, Baltimore, MD | MASN
Wed, Jun 27, 2018
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
8 - 7
Oriole Park at Camden Yards, Baltimore, MD | MASN
Tue, Jun 26, 2018
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
3 - 2
Oriole Park at Camden Yards, Baltimore, MD | MASN
Mon, Jun 25, 2018
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
5 - 3
Oriole Park at Camden Yards, Baltimore, MD | MASN
Wed, Aug 30, 2017
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
7 - 8
Oriole Park at Camden Yards, Baltimore, MD | MASN
Tue, Aug 29, 2017
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
0 - 4
Oriole Park at Camden Yards, Baltimore, MD | MASN 2
Mon, Aug 28, 2017
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
6 - 7
Oriole Park at Camden Yards, Baltimore, MD | MASN 2
Wed, Aug 16, 2017
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
6 - 7
Safeco Field, Seattle, WA | MASN 2
Tue, Aug 15, 2017
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
1 - 3
Safeco Field, Seattle, WA | MASN 2
Mon, Aug 14, 2017
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
11 - 3
Safeco Field, Seattle, WA | MASN
Sun, Jul 3, 2016
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
4 - 9
Safeco Field, Seattle, WA | MASN 2
Sat, Jul 2, 2016
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
6 - 12
Safeco Field, Seattle, WA | MASN
Fri, Jul 1, 2016
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 5
Safeco Field, Seattle, WA | MASN 2
Thu, Jun 30, 2016
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 5
Safeco Field, Seattle, WA | MASN 2
Thu, May 19, 2016
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
7 - 2
Oriole Park at Camden Yards, Baltimore, MD | MLBN (out-of-market only), MASN
Wed, May 18, 2016
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 5
Oriole Park at Camden Yards, Baltimore, MD | MASN 2
Tue, May 17, 2016
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
10 - 0
Oriole Park at Camden Yards, Baltimore, MD | MASN 2
Wed, Aug 12, 2015
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
0 - 3
Safeco Field, Seattle, WA | MLBN, MASN
Tue, Aug 11, 2015
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
5 - 6
Safeco Field, Seattle, WA | MASN 2
Mon, Aug 10, 2015
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 2
Safeco Field, Seattle, WA | MASN 2
Thu, May 21, 2015
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 5
Oriole Park at Camden Yards, Baltimore, MD | MLBN, MASN
Wed, May 20, 2015
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 2
Oriole Park at Camden Yards, Baltimore, MD | MASN 2
Tue, May 19, 2015
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 9
Oriole Park at Camden Yards, Baltimore, MD | MASN 2
Sun, Aug 3, 2014
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
0 - 1
Oriole Park at Camden Yards, Baltimore, MD | MASN 2, WJZ
Sat, Aug 2, 2014
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
6 - 3
Oriole Park at Camden Yards, Baltimore, MD | MLBN, MASN 2, WJZ
Fri, Aug 1, 2014
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
1 - 2
Oriole Park at Camden Yards, Baltimore, MD | MLBN, MASN 2
Sun, Jul 27, 2014
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 2
Safeco Field, Seattle, WA | MASN 2
Sat, Jul 26, 2014
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 4
Safeco Field, Seattle, WA | MASN 2, WJZ
Fri, Jul 25, 2014
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 1
Safeco Field, Seattle, WA | MASN 2
Thu, Jul 24, 2014
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
4 - 0
Safeco Field, Seattle, WA | MLBN, MASN
Sun, Aug 4, 2013
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
3 - 2
Oriole Park at Camden Yards, Baltimore, MD | MASN HD
Sat, Aug 3, 2013
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
8 - 4
Oriole Park at Camden Yards, Baltimore, MD | MASN HD, WJZ
Fri, Aug 2, 2013
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
8 - 11
Oriole Park at Camden Yards, Baltimore, MD | MASN HD
Wed, May 1, 2013
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 8
Safeco Field, Seattle, WA | MASN 2 HD
Tue, Apr 30, 2013
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
7 - 2
Safeco Field, Seattle, WA | MASN 2 HD
Mon, Apr 29, 2013
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 6
Safeco Field, Seattle, WA | MASN 2 HD
Wed, Sep 19, 2012
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 1
Safeco Field, Seattle, WA | MASN 2 HD
Tue, Sep 18, 2012
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
4 - 2
Safeco Field, Seattle, WA | MASN HD
Mon, Sep 17, 2012
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
10 - 4
Safeco Field, Seattle, WA | MASN HD
Wed, Aug 8, 2012
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 9
Oriole Park at Camden Yards, Baltimore, MD | MASN HD
Tue, Aug 7, 2012
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
7 - 8
Oriole Park at Camden Yards, Baltimore, MD | MASN HD
Mon, Aug 6, 2012
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
1 - 3
Oriole Park at Camden Yards, Baltimore, MD | MASN HD
Wed, Jul 4, 2012
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
4 - 2
Safeco Field, Seattle, WA | MASN HD
Tue, Jul 3, 2012
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
5 - 4
Safeco Field, Seattle, WA | MASN 2 HD
Mon, Jul 2, 2012
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 6
Safeco Field, Seattle, WA | MASN HD
Wed, Jun 1, 2011
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 1
Safeco Field, Seattle, WA
Tue, May 31, 2011
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 3
Safeco Field, Seattle, WA
Mon, May 30, 2011
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
3 - 4
Safeco Field, Seattle, WA
Thu, May 12, 2011
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
1 - 2
Oriole Park at Camden Yards, Baltimore, MD | MLBN
Wed, May 11, 2011
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 4
Oriole Park at Camden Yards, Baltimore, MD
Tue, May 10, 2011
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
6 - 7
Oriole Park at Camden Yards, Baltimore, MD
Wed, Aug 18, 2010
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
6 - 5
Oriole Park at Camden Yards, Baltimore, MD | MASN 2 HD
Tue, Aug 17, 2010
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 0
Oriole Park at Camden Yards, Baltimore, MD | MASN 2 HD
Mon, Aug 16, 2010
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
4 - 5
Oriole Park at Camden Yards, Baltimore, MD | MASN HD
Thu, May 13, 2010
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
5 - 6
Oriole Park at Camden Yards, Baltimore, MD | MASN HD
Wed, May 12, 2010
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
2 - 5
Oriole Park at Camden Yards, Baltimore, MD | MASN HD
Tue, May 11, 2010
MLB Regular Season
Seattle Mariners @ Baltimore Orioles
5 - 1
Oriole Park at Camden Yards, Baltimore, MD | MASN 2 HD
Wed, Apr 21, 2010
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
1 - 4
Safeco Field, Seattle, WA | MASN 2 HD
Tue, Apr 20, 2010
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
1 - 3
Safeco Field, Seattle, WA | MASN 2 HD
Mon, Apr 19, 2010
MLB Regular Season
Baltimore Orioles @ Seattle Mariners
2 - 8
Safeco Field, Seattle, WA | MASN 2 HD

The Baltimore Orioles and Seattle Mariners have faced each other 108 times in the MLB. The all-time series record is 55-53. 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 Baltimore Orioles run
8 straight · Jul 3 – Sep 19, 2012
Longest Seattle Mariners run
5 straight · May 19 – Jul 3, 2016
Biggest Baltimore Orioles win
11-3 · Aug 14, 2017
Biggest Seattle Mariners win
13-1 · Jun 23, 2023
Baltimore Orioles Schedule Seattle Mariners Schedule All MLB Teams
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