Athletics defeat Seattle Mariners 8-7: Recap, Betting Results & AiQ Picks

Sun, Sep 13, 2026 · MLB · Seattle Mariners 7, Athletics 8

The Athletics beat the Seattle Mariners 8-7. Athletics +1.5 covered the spread. The game went over the 9 total with 15 combined runs.

Seattle Mariners vs. Athletics final score and game recap

Seattle scored two in the third, three in the fourth, one in the fifth, and one in the eighth for seven. The Mariners led 6-2 after five innings, but the Athletics rallied in the middle frames and pulled ahead for good, adding two more runs in the ninth.

Who covered the spread in Seattle Mariners vs. Athletics?

The Athletics covered as the +1.5 underdog, winning outright by one run. Seattle entered as the -1.5 favorite but fell short. The line held steady from open to close at Athletics +1.5. AiQ's pick of Seattle -1.5 at 58% confidence graded as a loss.

Did Seattle Mariners vs. Athletics go over or under the total?

The game went over, finishing at 15 runs against a closing line of 9. The total opened at 9.5 and drifted down 0.5 runs to 9. AiQ's over 9 pick at 62% confidence recorded a win.

How did AiQ's Seattle Mariners vs. Athletics predictions do?

AiQ finished 1–2 across the graded markets.

The model correctly anticipated a high-scoring affair but missed both the moneyline and spread.

Seattle Mariners vs. Athletics odds: sportsbook value and line movement

The Mariners were listed at -134, implying a 55% win probability after vig removal; the Athletics were +112, a 45% implied probability. The bookmaker's vig sat at 4.4%.

AiQ's pre-game moneyline expectation was calibrated at 55% for Seattle, matching the market's implied probability. However, the best price available was -130, which offered negative expected value. While the model's probability aligned with the market, the price did not justify a bet.

Seattle sits at 69–77 overall, 39–33 at home and 30–44 away. In 117 games with a recorded spread, the Mariners have covered 42 times against 75 failures. Their over/under record in the same sample is 61 overs and 50 unders. Recent form reads L, W, L, W, W.

The Athletics have covered 52 of 118 spread bets and missed 66. Their over/under record is 63 overs and 51 unders. Their last five results are W, L, W, W, L.

What's next for Seattle Mariners and Athletics?

Seattle travels to Colorado to face the Rockies on Friday, September 18.