Seattle Mariners — Small Underdog (+1 to +3)
ATS Record & ROI Analysis · 2014-2024 (10 Seasons)
The edge: The Seattle Mariners have been a profitable bet in this situation, covering at 63.2% over 77 games.
10-Year Performance
Cumulative Units Won (2014-2024)
Win Rate by Season
Units by Season
Season-by-Season Breakdown
| Season | Record | Win % | Units | ROI |
|---|---|---|---|---|
| 2024 | 3-1-0 | 75.0% | +1.7u | +43.2% |
| 2023 | 4-1-0 | 80.0% | +2.6u | +52.7% |
| 2022 | 2-3-0 | 40.0% | -1.2u | -23.6% |
| 2021 | 6-4-1 | 60.0% | +1.6u | +14.6% |
| 2020 | 2-5-0 | 28.6% | -3.2u | -45.5% |
| 2019 | 4-3-0 | 57.1% | +0.6u | +9.1% |
| 2018 | 7-4-0 | 63.6% | +2.4u | +21.5% |
| 2017 | 3-1-0 | 75.0% | +1.7u | +43.2% |
| 2016 | 4-0-0 | 100.0% | +3.6u | +90.9% |
| 2015 | 7-3-0 | 70.0% | +3.4u | +33.6% |
| 2014 | 6-3-0 | 66.7% | +2.5u | +27.3% |
Bet Seattle Mariners Today
Compare Seattle Mariners spreads across top sportsbooks to find the best line.
Compare SportsbooksFrequently Asked Questions
What is the Seattle Mariners ATS record small underdog (+1 to +3)?
The Seattle Mariners are 48-28 ATS (63.2%) small underdog (+1 to +3) since 2014, generating +15.6u.
Should I bet on the Seattle Mariners small underdog (+1 to +3)?
Yes, this has been a profitable spot historically. The Seattle Mariners cover at 63.2% in this situation.
How consistent is this trend?
Over 11 seasons, the Seattle Mariners have been consistently profitable in this situation with +20.6% ROI.
Methodology: ATS records from 2014-2024 regular season. ROI assumes -110 odds. Data updated daily.