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Seattle Mariners history

MLB · 17 seasons · 2010–2026 · as the Seattle Mariners

The Seattle Mariners are 1300-1345 in MLB regular-season play across 17 seasons (2010–2026); their best season was 2025 (90-72); and their longest winning streak in a season is 14 games (Jul 2 – Jul 17, 2022).

All-time record
1300-1345
2010–2026, regular season
Best season
90-72
2025
Worst season
61-101
2010
Longest win streak
14 games
Jul 2 – Jul 17, 2022

Season by season

Seattle Mariners regular-season record by season, newest first
Season Record Home Away Longest win streak Games
2026 current 72-83 40-35 32-48 8 · May 25 – Jun 2, 2026 193
2025 best 90-72 51-30 39-42 10 · Sep 6 – Sep 16, 2025 174
2024 85-77 49-32 36-45 4 · Apr 15 – Apr 20, 2024 162
2023 88-74 45-36 43-38 8 · Aug 2 – Aug 11, 2023 162
2022 90-72 46-35 44-37 14 · Jul 2 – Jul 17, 2022 167
2021 90-72 46-35 44-37 6 · Sep 19 – Sep 24, 2021 162
2020 27-33 16-14 11-19 6 · Aug 30 – Sep 7, 2020 60
2019 68-94 35-46 33-48 6 · Apr 6 – Apr 11, 2019 162
2018 89-73 45-36 44-37 8 · Jun 25 – Jul 3, 2018 162
2017 78-84 40-41 38-43 6 · Jun 18 – Jun 23, 2017 162
2016 86-76 44-37 42-39 8 · Sep 7 – Sep 14, 2016 162
2015 76-86 36-45 40-41 5 · Sep 1 – Sep 6, 2015 162
2014 87-75 41-40 46-35 5 · May 3 – May 7, 2014 162
2013 71-91 36-45 35-46 8 · Jul 12 – Jul 23, 2013 162
2012 75-87 40-41 35-46 8 · Aug 14 – Aug 22, 2012 162
2011 67-95 37-44 30-51 6 · May 18 – May 23, 2011 162
2010 worst 61-101 35-46 26-55 6 · Jun 16 – Jun 23, 2010 162

Records are regular season only. Best and worst are judged among seasons at least half played.

Franchise records

Regular season, as the Seattle Mariners, 2010–2026. Streaks are the longest run within a single season.

Longest winning streak
14 games · Jul 2 – Jul 17, 2022
Longest losing streak
17 games · Jul 6 – Jul 26, 2011
Biggest win
19-1 vs Oakland Athletics · Sep 12, 2026
Biggest loss
0-22 vs Milwaukee Brewers · Aug 18, 2026

Most-played opponents

All-time series since 2010, from the Seattle Mariners' side.

Seattle Mariners head-to-head series records
Opponent Meetings Series
vs Texas Rangers 292 149-143
vs Oakland Athletics 291 165-126
vs Los Angeles Angels 288 136-152
vs Houston Astros 234 103-131
vs Minnesota Twins 115 59-56
vs Boston Red Sox 114 48-66
vs Chicago White Sox 114 53-61
vs Detroit Tigers 114 64-50

Seattle Mariners history: quick answers

What is the Seattle Mariners' all-time record?
1300-1345 in MLB regular-season games from 2010–2026 (17 seasons on this site).
What was the Seattle Mariners' best season?
2025, when they went 90-72 in the regular season.
What is the Seattle Mariners' longest winning streak?
14 straight regular-season wins within a season, from Jul 2 – Jul 17, 2022.
Which team have the Seattle Mariners played most?
Texas Rangers: 292 meetings since 2010, with the Seattle Mariners 149-143 in the series.
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