Cardinals vs. Rockies prediction: Why St. Louis is favored to win Sunday's MLB matchup [9/6/2026]
Dimers' simulation model projects a 54.9% win probability for the Cardinals at Coors Field.

The Colorado Rockies and St. Louis Cardinals will lock horns in MLB action at Coors Field on Sunday, starting at 3:10 PM ET.
The Rockies will start Tanner Gordon (1-4, 5.18 ERA), while the Cardinals are going with Kyle Leahy (10-4, 3.13 ERA).
Dimers' proven MLB model gives the Cardinals a slight edge with a 54.9% win probability over the Rockies.
This article offers a complete Cardinals vs. Rockies prediction, including best bets and picks.
Cardinals vs. Rockies prediction and odds
Our independent predictive model gives the Cardinals a 54.9% chance of defeating the Rockies.
According to our model, the Rockies (+1.5) have a 54.8% chance of covering the run line, while the 11.5-run over/under has a 51.9% 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: Cardinals -1.5 (+122) / Rockies +1.5 (-122)
- Moneyline: Cardinals -127, Rockies +122
- Total: Over/Under 11.5 (+113/-117)
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:
- Run line: Cardinals -1.5 @ 45¢ via Polymarket
- Moneyline: Rockies @ 45¢ via Novig
- Total: Over 11.5 @ 47¢ via Novig
According to our MLB best bets, the top play to make on this game is Over 11.5 total runs.
These picks are based on our probabilities matched against the implied probabilities from the current available odds.
Game info & first pitch details
Sunday's MLB game between the Rockies and Cardinals at Coors Field is scheduled to begin at 3:10 PM ET.
- Who: St. Louis Cardinals vs. Colorado Rockies
- Date: Sunday, September 6, 2026
- Time: 3:10 PM ET/12:10PM PT
- Venue: Coors Field
Conclusion
We predict the Cardinals, with a 54.9% win probability, will likely beat the Rockies in Sunday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.




