Washington State vs. San Diego State prediction favors San Diego State to win in college football Week 9 [2026]

Using trusted machine learning and data, we have re-simulated the outcome of Washington State vs. San Diego State, forming part of our college football predictions coverage.

Our independent predictive model gives San Diego State a 58.6% chance of beating Washington State. Our predicted final score has San Diego State winning 26-23. According to our model, San Diego State (-2.5) has a 52.5% chance of covering the spread, while the 51.5-point over/under has a 54.9% chance of staying under.

Latest betting odds

We have sourced the best college football odds in America for this game, which are listed here:

• Spread: Washington State +2.5 (+106) / San Diego State -2.5 (-108)
• Moneyline: Washington State +125, San Diego State -127
• Total: Over/Under 51.5 (+141/-156)

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:

• Spread: San Diego State -2.5 @ 52¢ via Novig
• Moneyline: San Diego State @ 56¢ via Novig
• Total: Over 51.5 @ 41¢ via Novig

According to our college football best bets, the top play to make on this game is Over 51.5 total points.

These picks are based on our probabilities matched against the implied probabilities from the current available odds.

Game info & kickoff details

Saturday's college football game between San Diego State and Washington State at Snapdragon Stadium is scheduled to begin at 7:00 PM ET.

• Who: Washington State vs. San Diego State
• Date: Saturday, October 31, 2026
• Time: 7:00 PM ET/4:00 PM PT
• Venue: Snapdragon Stadium

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Conclusion

We predict San Diego State, with a 58.6% win probability, will likely beat Washington State in Saturday's college football matchup.

Additional tools and information for betting safely can be found in our Responsible Gambling hub.

This article's predictions and probabilities are generated by Dimers' proprietary College Football prediction model. Our editorial team reviews the resulting content for accuracy and presentation before publication.