Houston Astros vs Seattle Mariners · All-Time
123 meetings tracked · closing-line graded
RECORD
69-54
MEETINGS
123
ATS
26-39
O / U
27-32
Key Insights
- ▸Houston Astros lead 69-54 across 123 tracked meetings.
- ▸Games have averaged 8.3 combined points.
- ▸Seattle Mariners have been the better ATS side (39-26).
- ▸Strong Under trend: 27-32 O/U.
Year-by-Year Record
| Season | Games | Houston Astros | Seattle Mariners | ATS | O / U | Avg Total |
|---|---|---|---|---|---|---|
| 2026 | 4 | 0 | 4 | 1-3 | 3-1 | 11.3 |
| 2025 | 13 | 5 | 8 | 6-7 | 6-4 | 8.5 |
| 2024 | 13 | 5 | 8 | 5-8 | 3-8 | 6.3 |
| 2023 | 13 | 4 | 9 | 3-10 | 6-6 | 8.1 |
| 2022 | 22 | 15 | 7 | 11-11 | 9-13 | 7.3 |
| 2021 | 10 | 6 | 4 | — | — | 9.1 |
| 2020 | 10 | 7 | 3 | — | — | 8.4 |
| 2019 | 19 | 18 | 1 | — | — | 9.7 |
| 2018 | 19 | 9 | 10 | — | — | 8.1 |
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Frequently Asked Questions
What is the Houston Astros vs Seattle Mariners record all-time?▾
Across 123 all-time meetings, the Houston Astros lead the series 69-54.
What is the ATS trend in Houston Astros vs Seattle Mariners games?▾
ATS: Houston Astros are 26-39 vs the spread in these matchups. Seattle Mariners are 39-26.
Do Houston Astros vs Seattle Mariners games go over or under?▾
Over/under: games between Houston Astros and Seattle Mariners have gone over 27 times and under 32 times, with an average combined score of 8.3.
When did Houston Astros and Seattle Mariners last play?▾
See Last Meetings section for detailed score, spread, and total data from the most recent Houston Astros vs Seattle Mariners games.
Where can I see the 5-year Houston Astros vs Seattle Mariners history?▾
A 5-year head-to-head page tracks every Houston Astros 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.