The Oakland Athletics visit the Seattle Mariners on Saturday, September 5, 2026. Oakland comes in with a 56-86 record, while Seattle holds a better mark at 66-76. The Mariners have the home-field edge and are favored in the betting lines.
Looking at the spread, Seattle is favored by 1.5 runs at -126 odds. This means you’d need to bet $126 to win $100 if you back the Mariners to win by two or more runs. Oakland is the underdog with a +1.5 run spread at +104 odds, so a $100 bet wins $104 if the Athletics lose by only one run or win outright.
On the moneyline, Seattle is the clear favorite at -257. This implies you must wager $257 to win $100 on the Mariners outright. Oakland’s moneyline sits at +207, offering a bigger payout but with a lower chance of winning given their worse record and away status.
The total runs line is set at 8.0 with the under priced at -115 and the over at -105. This suggests the game could be moderately low scoring, with a slight lean toward fewer than eight runs scored.
In summary, the Mariners hold the advantage in both record and betting odds. Betting Seattle to cover the 1.5 run spread or to win outright on the moneyline are the safer plays, while the under on total runs might appeal if you expect a pitching duel or low run output.