Seattle Mariners Large Favorite (-7.5+) Betting Trend

The Mariners' historically poor performance as massive favorites stems from their organizational tendency to inflate expectations during rare dominant stretches. When Seattle reaches -7.5 or higher spreads, it typically indicates they're facing severely depleted opponents or riding unsustainable hot streaks that create artificial market confidence. Seattle's roster construction over this period emphasized pitching depth over offensive consistency, making them vulnerable to letdowns when expected to dominate weak competition. The franchise's long playoff drought mentality often manifested as pressing when positioned as overwhelming favorites, leading to tight, low-scoring games that failed to cover inflated spreads. The psychological burden of carrying such heavy chalk appears particularly damaging for a franchise unaccustomed to sustained success. Seattle players historically struggle with the pressure of meeting lofty expectations, often playing tentatively rather than aggressively when heavily favored. For bettors, this trend suggests immediate value in fading Seattle at extreme favorite positions, particularly when the line reaches -8 or higher. The pattern indicates systematic market overvaluation of the Mariners' dominance potential. This trend carries most weight during interleague play or against rebuilding American League opponents when spreads naturally inflate due to perceived talent gaps.