Inside Edge
Seattle Mariners Betting Record — 2026
Against the Spread
18-33-0
Win%
35.29%
ROI
-20.93%
Units
-10.7
Moneyline
24-27-0
Win%
47.06%
ROI
-21.06%
Units
-10.7
Over Rate
23-26-2
Win%
46.94%
ROI
-9.76%
Units
-4.8
Mariners Monthly Performance
-21.2%18-33 · -10.8u
+3.8%
-20.6%
-29.2%
Mar
3-3
3-3
Apr
9-17
9-17
May
6-13
6-13
Top Betting AngleMin. 10 games
Mariners Fade Mariners ATS: 33-18-0
Win %: 64.71%ROI: +10.13%51 games
Discover more profitable angles with LineTerminal's system builder — filter by spread range, home/away, favorite/dog, month, and 80+ more variables.
Mariners Home / Away Splits
Home
ATSAgainst the Spread
10-19-0-20.18%
MLMoneyline
14-15-0-19.8%
O/UOver Rate
15-13-1+3.15%
Away
ATSAgainst the Spread
8-14-0-21.93%
MLMoneyline
10-12-0-22.71%
O/UOver Rate
8-13-1-26.96%
Mariners as Favorite / Underdog
As Favorite
ATSAgainst the Spread
17-30-0-17.52%
MLMoneyline
23-24-0-18.53%
As Underdog
ATSAgainst the Spread
1-3-0-61.03%
MLMoneyline
1-3-0-50.73%
Betting Against the Mariners
What happens when you fade the Mariners and bet on their opponent every game?
Fade Against the Spread
33-18-0
Win%
64.71%
ROI
+10.13%
Units
+5.2
Fade Moneyline
27-24-0
Win%
52.94%
ROI
+13.21%
Units
+6.7
Mariners Recent Games
| Date | Opponent | Score | ATS | ML | O/U |
|---|---|---|---|---|---|
| 2026-05-20 |  vs White Sox | W 5-4 | ✗ | W | O |
| 2026-05-19 | vs White Sox | L 1-2 | ✗ | L | U |
| 2026-05-18 | vs White Sox | W 6-1 | ✓ | W | P |
| 2026-05-17 |  vs Padres | L 3-8 | ✗ | L | O |
| 2026-05-16 | vs Padres | L 4-7 | ✗ | L | O |
| 2026-05-15 | vs Padres | L 0-2 | ✗ | L | U |
| 2026-05-14 |  @ Astros | W 3-8 | ✓ | W | O |
| 2026-05-13 | @ Astros | L 4-3 | ✗ | L | U |
| 2026-05-12 | @ Astros | W 2-10 | ✓ | W | O |
| 2026-05-11 | @ Astros | W 1-3 | ✓ | W | U |
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 |  OAKAthletics | 26-24-0 | 52% | +8.95% | 28-22-0 | 56% | -3.93% | 23-24-3 | 48.94% | -6.86% |
| 2 |  TEXRangers | 24-25-0 | 48.98% | -4.37% | 24-25-0 | 48.98% | -10.78% | 18-27-4 | 40% | -23.85% |
| 3 |  SEAMariners | 24-27-0 | 47.06% | -21.06% | 18-33-0 | 35.29% | -20.93% | 23-26-2 | 46.94% | -9.76% |
| 4 |  HOUAstros | 20-31-0 | 39.22% | -19.47% | 20-31-0 | 39.22% | -29.07% | 28-20-3 | 58.33% | +12.93% |
| 5 |  LAAAngels | 17-34-0 | 33.33% | -27.06% | 24-27-0 | 47.06% | -13.97% | 24-27-0 | 47.06% | -9.94% |
Frequently Asked Questions
What is the Seattle Mariners record against the spread?
The Seattle Mariners are 18-33-0 against the spread in 2026 on DraftKings, with a 35.29% cover rate and -20.93% ROI.
What is the Seattle Mariners home and away ATS record?
At home, the Seattle Mariners are 10-19-0 ATS (-20.18% ROI). On the road, they are 8-14-0 ATS (-21.93% ROI).
How do the Seattle Mariners perform as favorites vs underdogs ATS?
As favorites, the Seattle Mariners are 17-30-0 ATS (36.17% cover rate). As underdogs, they are 1-3-0 ATS (25% cover rate).
What is the Seattle Mariners moneyline record?
The Seattle Mariners are 24-27-0 straight up (moneyline) in 2026, with a 47.06% win rate and -21.06% ROI on DraftKings.