Cleveland Guardians vs Seattle Mariners · All-Time
33 meetings tracked · closing-line graded
RECORD
15-18
MEETINGS
33
ATS
15-18
O / U
16-14
Key Insights
- ▸Seattle Mariners lead 18-15 across 33 tracked meetings.
- ▸Games have averaged 7.6 combined points.
- ▸Seattle Mariners have been the better ATS side (18-15).
- ▸Strong Over trend: 16-14 O/U.
Year-by-Year Record
| Season | Games | Cleveland Guardians | Seattle Mariners | ATS | O / U | Avg Total |
|---|---|---|---|---|---|---|
| 2026 | 7 | 4 | 3 | 3-4 | 4-3 | 8.1 |
| 2025 | 6 | 2 | 4 | 3-3 | 2-3 | 7.3 |
| 2024 | 6 | 4 | 2 | 4-2 | — | 9.0 |
| 2023 | 7 | 4 | 3 | 4-3 | 4-3 | 7.9 |
| 2022 | 7 | 1 | 6 | 1-6 | 1-5 | 5.7 |
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Frequently Asked Questions
What is the Cleveland Guardians vs Seattle Mariners record all-time?▾
Across 33 all-time meetings, the Seattle Mariners lead the series 18-15.
What is the ATS trend in Cleveland Guardians vs Seattle Mariners games?▾
ATS: Cleveland Guardians are 15-18 vs the spread in these matchups. Seattle Mariners are 18-15.
Do Cleveland Guardians vs Seattle Mariners games go over or under?▾
Over/under: games between Cleveland Guardians and Seattle Mariners have gone over 16 times and under 14 times, with an average combined score of 7.6.
When did Cleveland Guardians and Seattle Mariners last play?▾
See Last Meetings section for detailed score, spread, and total data from the most recent Cleveland Guardians vs Seattle Mariners games.
Where can I see the 5-year Cleveland Guardians vs Seattle Mariners history?▾
A 5-year head-to-head page tracks every Cleveland Guardians 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 2022–2026. Older meetings aren't in this dataset yet.