The data suggests caution when backing the Seattle Mariners in this spot. Since 2014, when playing as small favorite (-1 to -3), the Seattle Mariners are just 23-40-0 against the spread. That's a 0.0% win rate and a -30.3% ROI. Sharp bettors have found value fading this situation—the opposite side would have returned +30.3%.

🚫 Strong Fade
Record23-40-0
Win Rate0.0%
Sample Size63 games
ROI-30.3%
Units Won-19.1u
Time Period2014-2024

Year-by-Year Performance

SeasonRecordWin %ROI
20144-5-00.0%-15.2%
20151-5-00.0%-68.2%
20164-4-00.0%-4.5%
20171-5-00.0%-68.2%
20184-4-00.0%-4.5%
20191-4-00.0%-61.8%
20201-4-00.0%-61.8%
20213-3-00.0%-4.5%
20221-0-00.0%+90.9%
20232-3-00.0%-23.6%
20241-3-00.0%-52.3%

Why This Trend Exists

The Mariners' struggles as small favorites reflect a franchise historically uncomfortable with expectations. Seattle has spent decades as an underdog organization, and when oddsmakers view them as slight favorites, they often face teams with nothing to lose while carrying the psychological burden of being expected to win. This dynamic particularly manifests in divisional play, where familiarity breeds competitive games regardless of perceived talent gaps. Seattle's pitching-heavy construction compounds this issue. When favored by narrow margins, the Mariners typically rely on strong starting pitching to control games, but their historically inconsistent offense means they can't capitalize when opponents match their pitching quality. Small favorite lines suggest close games where one or two key moments decide outcomes, and Seattle's tendency toward conservative, low-scoring baseball often fails to create the separation needed to cover tight spreads. The franchise's long playoff drought mentality also creates pressure in winnable games. Players and coaching staff often overthink situations when they're supposed to win, leading to tentative play that allows inferior opponents to stay competitive longer than they should. This trend matters most during homestand series against struggling opponents, where public perception inflates Seattle's value despite their historical inability to dominate when expected to do so.

Frequently Asked Questions

What is the Seattle Mariners's ATS record as small favorite (-1 to -3)?

The Seattle Mariners have a 23-40-0 ATS record as small favorites (-1 to -3) from 2014-2024. This translates to a 36.5% ATS win rate over 63 games in this situation.

Is betting on the Seattle Mariners as small favorite (-1 to -3) profitable?

No, betting on the Seattle Mariners as small favorites (-1 to -3) is not profitable, showing a -30.3% ROI. This represents significant losses for bettors backing Seattle in this spot over the past decade.

How does this compare to the league average?

This performance is well below the expected 50% ATS rate for any betting situation. The Mariners' 36.5% ATS win rate as small favorites indicates they consistently fail to cover spreads when lightly favored.

FADE This Trend

The data suggests fading this situation has been profitable. Compare odds to find the best value on the other side.

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Methodology

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.