Trendline Labs
MLBHead-to-HeadAll-Time

Athletics vs Seattle Mariners · All-Time

Last updated: April 15, 2026

13 meetings tracked · closing-line graded

Across 13 all-time head-to-head meetings, Seattle Mariners lead 7-6. Games have averaged 7.5 combined points.

RECORD

6-7

MEETINGS

13

ATS

9-4

O / U

3-9

Key Insights

  • Seattle Mariners lead 7-6 across 13 tracked meetings.
  • Games have averaged 7.5 combined points.
  • Athletics have been the better ATS side (9-4).
  • Strong Under trend: 3-9 O/U.

Year-by-Year Record

SeasonGamesAthleticsSeattle MarinersATSO / UAvg Total
202513679-43-97.5

Ask Optimus about Athletics vs Seattle Mariners

Pick a starter or type your own. First query is free.

First query free

More from this matchup

Frequently Asked Questions

What is the Athletics vs Seattle Mariners record all-time?

Across 13 all-time meetings, the Seattle Mariners lead the series 7-6.

What is the ATS trend in Athletics vs Seattle Mariners games?

ATS: Athletics are 9-4 vs the spread in these matchups. Seattle Mariners are 4-9.

Do Athletics vs Seattle Mariners games go over or under?

Over/under: games between Athletics and Seattle Mariners have gone over 3 times and under 9 times, with an average combined score of 7.5.

When did Athletics and Seattle Mariners last play?

See Last Meetings section for detailed score, spread, and total data from the most recent Athletics vs Seattle Mariners games.

Where can I see the 5-year Athletics vs Seattle Mariners history?

A 5-year head-to-head page tracks every Athletics vs Seattle Mariners meeting from the last five full seasons. Link at the bottom of this page.

Data coverage: Trendline's head-to-head records include closing-line-graded games from 20252025. Older meetings aren't in this dataset yet.

Head-to-head data derived from closing-line game records. Stats update nightly from graded game results.

For informational and entertainment purposes only. Not betting advice. Please gamble responsibly.

Optimus

Matchups

Systems

Titan