Pirates vs. Cardinals prediction: St. Louis favored to win Saturday's MLB matchup [8/29/2026]

The St. Louis Cardinals will square off with the Pittsburgh Pirates, in what is expected to be a close MLB game, at Busch Stadium on Saturday, starting at 2:15 PM ET.

Kyle Leahy (10-4, 3.14 ERA) will be the starting pitcher for the Cardinals, while the Pirates have opted for Lake Bachar (1-3, 3.70 ERA).

Dimers' proven MLB model gives the Cardinals a slight edge with a 52.4% win probability over the Pirates.

This article offers a complete Pirates vs. Cardinals prediction, including best bets and picks.

Pirates vs. Cardinals prediction: Who will win and cover?

Using powerful machine learning and data, we have simulated the outcome of Saturday's MLB matchup between the Pirates and Cardinals, forming part of our MLB predictions coverage.

Our famous predictive model gives the Cardinals a 52.4% chance of beating the Pirates.

According to our model, the Pirates (+1.5) have a 64.5% chance of covering the run line, while the 8.5-run over/under has a 51.4% chance of staying under.

Pirates vs. Cardinals odds [8/29/2026]

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

• Run Line: Pirates +1.5 (-178) / Cardinals -1.5 (+178)
• Moneyline: Pirates +117, Cardinals -117

All odds are correct at the time of publication and are subject to change.

Pirates vs. Cardinals 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: Pirates +1.5 @ -178 via DraftKings
• Moneyline: Pirates @ +117 via Novig
• Total: Over 8.5 @ +117 via Polymarket

According to our MLB best bets, the top play to make on this game is Over 8.5 total runs.

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

Pirates vs. Cardinals game-day updates and essential details

Saturday's MLB action between the Cardinals and Pirates at Busch Stadium is scheduled to commence at 2:15 PM ET.

• Who: Pittsburgh Pirates vs. St. Louis Cardinals
• Date: Saturday, August 29, 2026
• Time: 2:15 PM ET/11:15AM PT
• Venue: Busch Stadium

Conclusion

We predict the Cardinals, with a 52.4% win probability, will likely beat the Pirates in Saturday's MLB matchup.

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