Portland Timbers vs. St Louis City prediction, odds, MLS picks [9/9/2026]

Portland will face St Louis City in MLS action at Providence Park on Wednesday, beginning at 10:30 PM ET.

Dimers' proven MLS model projects Portland as the most likely winner in this Portland vs. St Louis City prediction.

This article offers an expanded analysis of Wednesday's match, including best bets and picks.

Portland Timbers vs. St Louis City prediction and odds

Using powerful machine learning and statistical analysis, we have re-simulated the outcome of Wednesday's MLS game between Portland and St Louis City, forming part of our MLS predictions coverage.

Our independent predictive model indicates a 44.2% chance of Portland winning, a 33.4% chance for St Louis City, and a 22.4% chance of a draw.

Additionally, the 2.5-goal over/under has a 67.5% chance of going over, according to our model.

Latest betting odds

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

• Moneyline: St Louis City +190, Portland +144
• Total Goals: Over/Under 2.5 (-194/+186)

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 available odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:

• Moneyline: Portland @ +144 via Polymarket
• Total Goals: Over 2.5 @ -194 via Polymarket

According to our best MLS bets, the top play to make on this game is Portland to win.

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

Correct score projections

Here are the top three most likely final scores according to our model, with a 1-1 draw being the most probable:

• Portland 1-1 St Louis City (9.4% probability)
• Portland 2-1 St Louis City (8.7%)
• Portland 1-2 St Louis City (7.5%)

These predictions are based on each team's average score according to our machine learning model, which means the most likely correct score can differ from our predicted winner.

Game info & kickoff details

Wednesday's MLS matchup between Portland and St Louis City in MLS at Providence Park is scheduled to start at 10:30 PM ET.

• Who: Portland Timbers vs. St Louis City
• Date: Wednesday, September 9, 2026
• Time: 10:30 PM ET/7:30PM PT
• Venue: Providence Park

Conclusion

According to our computer model, Portland has a 44.2% win probability on Wednesday, St Louis City has a 33.4% win probability, and there is a 22.4% chance that the game will end in a draw.

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