Orioles vs Mariners Betting Record
Against the Spread
16-8-0
Win %
66.67%
ROI
+23.57%
Units
+5.7
Moneyline
18-11-0
Win %
62.07%
ROI
+26.65%
Units
+7.7
Over Rate
11-11-2
Win %
50%
ROI
-3.88%
Units
-0.8
From the Other Side — Mariners vs Orioles
Against the Spread
8-16-0
Win %
33.33%
ROI
-29.73%
Units
-7.1
Moneyline
11-18-0
Win %
37.93%
ROI
-28.75%
Units
-8.3
Over Rate
11-11-2
Win %
50%
ROI
-3.88%
Units
-0.8
Venue Splits
Orioles Home
9-3-0 ATS
75% • +39%
8-6-0 ML (57.14%)
Mariners Home
5-7-0 ATS
41.67% • -12%
5-10-0 ML (33.33%)
Scoring Averages
Orioles
3.9
PPG
3.8
allowed
Total
7.7
Avg
29
games
Mariners
3.8
PPG
3.9
allowed
Recent Matchups
| Date | Score | ATS | ML | O/U |
|---|---|---|---|---|
| 08/142025-08-14 | W 5-3 | ✓ | W | U |
| 08/132025-08-13 | W 4-3 | ✓ | W | U |
| 08/122025-08-12 | L 0-1 | ✓ | L | U |
| 06/052025-06-05 | W 3-4 | ✓ | W | U |
| 06/042025-06-04 | W 2-3 | ✗ | W | U |
| 06/032025-06-03 | W 1-5 | ✓ | W | U |
| 07/042024-07-04 | L 7-3 | ✗ | L | O |
| 07/032024-07-03 | W 1-4 | ✓ | W | U |
| 07/022024-07-02 | W 0-2 | ✓ | W | U |
| 05/192024-05-19 | W 6-3 | ✓ | W | O |
| 05/182024-05-18 | L 3-4 | ✗ | L | P |
| 05/172024-05-17 | W 9-2 | ✓ | W | O |
| 08/132023-08-13 | W 3-5 | ✓ | W | P |
| 08/122023-08-12 | W 0-1 | ✓ | W | U |
| 08/112023-08-11 | L 9-2 | ✗ | L | O |
| 06/252023-06-25 | W 3-2 | ✓ | W | U |
| 06/242023-06-24 | W 6-4 | ✓ | W | O |
| 06/232023-06-23 | L 1-13 | ✗ | L | O |
| 06/292022-06-29 | L 9-3 | ✗ | L | O |
| 06/282022-06-28 | L 2-0 | ✗ | L | U |
Frequently Asked Questions
What is the Baltimore Orioles vs Seattle Mariners all-time record?
The Baltimore Orioles are 18-11 against the Seattle Mariners in head-to-head matchups.
What is the Baltimore Orioles ATS record vs the Seattle Mariners?
The Baltimore Orioles are 16-8-0 against the spread vs the Seattle Mariners on DraftKings, with +23.57% ROI.
Do Baltimore Orioles vs Seattle Mariners games go over or under?
Baltimore Orioles vs Seattle Mariners games average 7.7 total points. The Over has hit 50% of the time.

Inside Edge
