The Seattle Mariners host the Oakland Athletics on Friday, September 4, 2026. Looking at the records, Seattle holds a 66-75 mark, while Oakland sits at 55-86. Both teams have struggled this season, but the Mariners have the edge in wins.
The betting lines reflect this gap. Seattle is favored on the moneyline at -226, meaning you’d need to bet $226 to win $100 on the Mariners outright. Oakland’s moneyline is +184, so a $100 bet on the Athletics would return $184 if they pull off the upset.
The spread is set at 1.5 runs. Oakland is the underdog with +1.5 runs at -126 odds. This means a bet on Oakland would win if they lose by one run or win the game outright. Seattle’s -1.5 spread at +104 means they must win by two or more runs for that bet to pay off.
The total runs line is 7.0, with the over at -118 and the under at -102. The odds suggest a moderately low-scoring game, but the slight pricing edge on the under hints that the market expects fewer than seven runs.
In summary, Seattle is the favorite at home and must win by two or more runs to cover the spread. Oakland is the underdog but gets a small cushion with +1.5 runs. The total looks like a close call, with a slight lean toward under 7 runs. Use this info to shape your betting strategy.