Athletics vs. Mariners prediction: Seattle favored to win Thursday's MLB matchup [9/3/2026]
Dimers' simulation model projects a 65.3% win probability for the Mariners at T-Mobile Park.

The Seattle Mariners and Athletics will lock horns in MLB action at T-Mobile Park on Thursday, starting at 9:40 PM ET.
The Mariners will have Kade Anderson (0-0, 4.50 ERA) as their starting pitcher, up against Jack Perkins (3-10, 6.42 ERA) for the Athletics.
Dimers' proven MLB model projects the Mariners as the most likely winner in this Athletics vs. Mariners prediction.
This article offers an expanded analysis of Thursday's matchup, including best bets and picks.
A's vs. Mariners prediction and odds
Our leading predictive model currently gives the Mariners a 65.3% chance of beating the Athletics.
According to our model, the Athletics (+1.5) have a 53.6% chance of covering the run line, while the 7.5-run over/under has a 50.4% chance of staying under.
Latest betting odds
We have sourced the best MLB odds in America for this game, which are listed here:
- Run Line: Athletics +1.5 (-117) / Mariners -1.5 (+115)
- Moneyline: Athletics +195, Mariners -194
- Total: Over/Under 7.5 (+122/-122)
All odds are correct at the time of publication and are subject to change.
Model picks and best bet
After matching our predictions against the best current odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:
- Run line: Mariners -1.5 @ 47¢ via Novig
- Moneyline: Athletics @ +195 via BetRivers
- Total: Over 7.5 @ 45¢ via Polymarket
According to our best MLB bets, the top play to make on this game is Over 7.5 total runs.
These picks are based on our probabilities matched against the implied probabilities from the current available odds.
Game info & first pitch details
Thursday's MLB matchup between the Mariners and Athletics at T-Mobile Park is scheduled to begin at 9:40 PM ET.
- Who: Athletics vs. Seattle Mariners
- Date: Thursday, September 3, 2026
- Time: 9:40 PM ET/6:40PM PT
- Venue: T-Mobile Park
Conclusion
We predict the Mariners, with a 65.3% win probability, will likely beat the Athletics in Thursday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.




