Seattle Mariners Away Underdog Betting Trend
ATS Record, ROI Analysis & Historical Performance Data (2014-2024)
The public often underestimates the Seattle Mariners in this spot. Since 2014, when playing as away underdog, the Seattle Mariners hold a record of 192-43-0 against the spread. That's a 0.0% win rate and a +56.0% return on investment—meaning a bettor wagering $100 per game would be up $132 over this period.
Year-by-Year Performance
| Season | Record | Win % | ROI |
|---|---|---|---|
| 2014 | 16-3-0 | 0.0% | +60.8% |
| 2015 | 19-3-0 | 0.0% | +64.9% |
| 2016 | 14-4-0 | 0.0% | +48.5% |
| 2017 | 19-2-0 | 0.0% | +72.7% |
| 2018 | 19-5-0 | 0.0% | +51.1% |
| 2019 | 20-3-0 | 0.0% | +66.0% |
| 2020 | 19-5-0 | 0.0% | +51.1% |
| 2021 | 18-6-0 | 0.0% | +43.2% |
| 2022 | 15-6-0 | 0.0% | +36.4% |
| 2023 | 18-3-0 | 0.0% | +63.6% |
| 2024 | 15-3-0 | 0.0% | +59.1% |
Why This Trend Exists
The Mariners' exceptional performance as away underdogs stems from their organizational identity as a scrappy, defensively-oriented team that thrives when expectations are lowered. Seattle's pitching-first philosophy has consistently kept them competitive in hostile environments, while their lineup of patient hitters excels at working deep counts and capitalizing on opposing pitchers who feel pressure to attack the strike zone early when favored at home. This franchise has cultivated a road warrior mentality born from years of playoff drought and low expectations. When playing as underdogs away from T-Mobile Park, the Mariners shed the weight of home crowd expectations and play with the freedom that comes from having nothing to lose. Their bullpen depth has been particularly crucial in these spots, as they've consistently fielded relievers who can match up well against opposing lineups in the late innings when games are decided. The psychological edge becomes even sharper when oddsmakers undervalue Seattle's ability to execute small-ball tactics and manufacture runs through situational hitting. Bettors should target this trend most aggressively when the Mariners face division rivals on the road, where familiarity breeds contempt and Seattle's underdog status often reflects recent series history rather than actual talent disparity.
Frequently Asked Questions
What is the Seattle Mariners's ATS record as away underdog?
The Seattle Mariners have an ATS record of 192-43-0 as away underdogs from 2014-2024. This represents a strong 81.7% ATS win rate over 235 total games.
Is betting on the Seattle Mariners as away underdog profitable?
Yes, betting on the Seattle Mariners as away underdogs has been highly profitable with a 56.0% ROI. This exceptional return demonstrates consistent value when the Mariners are road underdogs.
How does this compare to the league average?
This 81.7% ATS win rate significantly exceeds the typical league average of around 50% for underdogs. The Mariners' performance as away underdogs represents one of the most profitable betting trends in baseball.
BACK This Trend
This trend shows a historically profitable pattern. Compare odds across sportsbooks to find the best line.
Compare Sportsbook OddsMethodology
All trends in The Archives are calculated from official game results and closing point spreads from 2014 to 2024. ROI assumes a flat $100 bet at standard -110 juice. Win rate is calculated as wins divided by total decisions (pushes excluded). A minimum of 10 games is required for a trend to be published. Data is sourced from The Odds API and verified against official league records.