Seattle Mariners Betting Record — 2026
Against the Spread
39-61-0
Win%
39%
ROI
-12.92%
Units
-12.9
Moneyline
51-49-0
Win%
51%
ROI
-12.95%
Units
-12.9
Over Rate
48-46-6
Win%
51.06%
ROI
-2.41%
Units
-2.3
Mariners Monthly Performance
-13%39-61 · -13.0u
+3.8%
-20.6%
-8.9%
-10%
-19.4%
Mar
3-3
3-3
Apr
9-17
9-17
May
11-17
11-17
Jun
10-16
10-16
Jul
6-8
6-8
Top Betting AngleMin. 10 games
Mariners Fade Mariners ATS: 61-39-0
Win %: 61%ROI: +3.84%100 games
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Mariners Home / Away Splits
Home
ATSAgainst the Spread
21-29-0-3.82%
MLMoneyline
30-20-0-0.89%
O/UOver Rate
24-23-3-2.47%
Away
ATSAgainst the Spread
18-32-0-22.02%
MLMoneyline
21-29-0-25.02%
O/UOver Rate
24-23-3-2.36%
Mariners as Favorite / Underdog
As Favorite
ATSAgainst the Spread
35-55-0-10.06%
MLMoneyline
48-42-0-10.14%
As Underdog
ATSAgainst the Spread
4-6-0-38.68%
MLMoneyline
3-7-0-38.3%
Betting Against the Mariners
What happens when you fade the Mariners and bet on their opponent every game?
Fade Against the Spread
61-39-0
Win%
61%
ROI
+3.84%
Units
+3.8
Fade Moneyline
49-51-0
Win%
49%
ROI
+1.7%
Units
+1.7
Mariners Recent Games
| Date | Opponent | Score | ATS | ML | O/U |
|---|---|---|---|---|---|
| 2026-07-20 |  vs Reds | W 8-0 | ✓ | W | O |
| 2026-07-19 |  vs Giants | W 6-3 | ✓ | W | O |
| 2026-07-18 | vs Giants | W 4-3 | ✗ | W | P |
| 2026-07-17 | vs Giants | L 0-7 | ✗ | L | P |
| 2026-07-12 |  @ Rays | W 2-8 | ✓ | W | O |
| 2026-07-11 | @ Rays | L 6-1 | ✗ | L | P |
| 2026-07-10 | @ Rays | L 7-2 | ✗ | L | O |
| 2026-07-09 |  @ Marlins | L 8-4 | ✗ | L | O |
| 2026-07-08 | @ Marlins | L 2-0 | ✗ | L | U |
| 2026-07-07 | @ Marlins | L 6-5 | ✓ | L | O |
Mariners Player Props
Seattle Mariners Player Prop Performance
Historical hit rates for every Mariners player — hits, home runs, RBIs, strikeouts.
Mariners Head-to-Head Matchups
AL West Standings
| Moneyline | ATS | Over/Under | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| # | Team | Record | Win% | ROI | Record | Win% | ROI | Record | Win% | ROI |
| 1 |  SEAMariners | 51-49-0 | 51% | -12.95% | 39-61-0 | 39% | -12.92% | 48-46-6 | 51.06% | -2.41% |
| 2 |  TEXRangers | 50-49-0 | 50.51% | -2.34% | 44-55-0 | 44.44% | -14.79% | 51-42-6 | 54.84% | +5.12% |
| 3 |  HOUAstros | 48-54-0 | 47.06% | -5.21% | 49-53-0 | 48.04% | -11.56% | 53-43-6 | 55.21% | +6.83% |
| 4 |  OAKAthletics | 43-57-0 | 43% | -12.26% | 47-53-0 | 47% | -17.35% | 48-48-4 | 50% | -4.73% |
| 5 |  LAAAngels | 40-61-0 | 39.6% | -14.81% | 53-48-0 | 52.48% | -7.62% | 46-54-1 | 46% | -12.29% |
Frequently Asked Questions
What is the Seattle Mariners record against the spread?
The Seattle Mariners are 39-61-0 against the spread in 2026 on DraftKings, with a 39% cover rate and -12.92% ROI.
What is the Seattle Mariners home and away ATS record?
At home, the Seattle Mariners are 21-29-0 ATS (-3.82% ROI). On the road, they are 18-32-0 ATS (-22.02% ROI).
How do the Seattle Mariners perform as favorites vs underdogs ATS?
As favorites, the Seattle Mariners are 35-55-0 ATS (38.89% cover rate). As underdogs, they are 4-6-0 ATS (40% cover rate).
What is the Seattle Mariners moneyline record?
The Seattle Mariners are 51-49-0 straight up (moneyline) in 2026, with a 51% win rate and -12.95% ROI on DraftKings.
Inside Edge