San Francisco Giants vs Seattle Mariners · All-Time
23 meetings tracked · closing-line graded
RECORD
13-10
MEETINGS
23
ATS
6-6
O / U
6-3
Key Insights
- ▸San Francisco Giants lead 13-10 across 23 tracked meetings.
- ▸Games have averaged 8.9 combined points.
- ▸Strong Over trend: 6-3 O/U.
Year-by-Year Record
| Season | Games | San Francisco Giants | Seattle Mariners | ATS | O / U | Avg Total |
|---|---|---|---|---|---|---|
| 2026 | 3 | 1 | 2 | 2-1 | — | 7.7 |
| 2025 | 3 | 3 | 0 | 1-2 | 2-1 | 11.0 |
| 2024 | 3 | 1 | 2 | 2-1 | — | 8.3 |
| 2023 | 3 | 1 | 2 | 1-2 | 1-2 | 6.3 |
| 2021 | 3 | 1 | 2 | — | — | 9.3 |
| 2020 | 4 | 4 | 0 | — | — | 11.0 |
| 2018 | 4 | 2 | 2 | — | — | 8.3 |
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Frequently Asked Questions
What is the San Francisco Giants vs Seattle Mariners record all-time?▾
Across 23 all-time meetings, the San Francisco Giants lead the series 13-10.
What is the ATS trend in San Francisco Giants vs Seattle Mariners games?▾
ATS: San Francisco Giants are 6-6 vs the spread in these matchups. Seattle Mariners are 6-6.
Do San Francisco Giants vs Seattle Mariners games go over or under?▾
Over/under: games between San Francisco Giants and Seattle Mariners have gone over 6 times and under 3 times, with an average combined score of 8.9.
When did San Francisco Giants and Seattle Mariners last play?▾
See Last Meetings section for detailed score, spread, and total data from the most recent San Francisco Giants vs Seattle Mariners games.
Where can I see the 5-year San Francisco Giants vs Seattle Mariners history?▾
A 5-year head-to-head page tracks every San Francisco Giants 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 2018–2026. Older meetings aren't in this dataset yet.