Baltimore Orioles Lead Seattle Mariners 18-11 in Head-to-Head Matchups

MLB16-8-0 ATS (66.67%)Data through 2025-08-14

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

DateScoreATSMLO/U
08/14W 5-3WU
08/13W 4-3WU
08/12L 0-1LU
06/05W 3-4WU
06/04W 2-3WU
06/03W 1-5WU
07/04L 7-3LO
07/03W 1-4WU
07/02W 0-2WU
05/19W 6-3WO
05/18L 3-4LP
05/17W 9-2WO
08/13W 3-5WP
08/12W 0-1WU
08/11L 9-2LO
06/25W 3-2WU
06/24W 6-4WO
06/23L 1-13LO
06/29L 9-3LO
06/28L 2-0LU

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.

More Orioles Matchups

Head-to-head betting record for Baltimore Orioles vs Seattle Mariners on LineTerminal. The Orioles are 18-11 straight up against the Mariners and 16-8-0 against the spread (66.67% cover rate, +23.57% ROI) on DraftKings. Data sourced from DraftKings closing lines. Updated daily after games are graded. Past performance does not guarantee future results.

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