Phillies vs. Braves prediction: Why Atlanta is favored to win Saturday's MLB matchup [9/12/2026]

MLB action continues on Saturday at 7:15 PM ET as the Philadelphia Phillies square off with the Atlanta Braves at Truist Park.

Tyler Mahle (5-10, 4.05 ERA) will be on the bump for the Braves, while the Phillies have opted for Tim Mayza (3-3, 3.23 ERA).

Dimers' proven MLB model gives the Braves a slight edge with a 54.2% win probability over the Phillies.

This article offers a complete Phillies vs. Braves prediction, including best bets and picks.

Phillies vs. Braves prediction and odds

Using trusted machine learning and data, we have re-simulated the result of Saturday's MLB game between the Phillies and Braves, forming part of our MLB predictions coverage.

Our famous predictive model gives the Braves a 54.2% chance of beating the Phillies. According to our model, the Phillies (+1.5) have a 62.7% chance of covering the run line, while the over/under total of 8.5 runs has a 55.0% chance of going over.

Latest betting odds

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

• Run Line: Phillies +1.5 (-163) / Braves -1.5 (+160)
• Moneyline: Phillies +127, Braves -127
• Total: Over/Under 8.5 (+104/-108)

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

Model picks and best bet

After matching our probabilities 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: Phillies +1.5 @ 62¢ via Novig
• Moneyline: Phillies @ 44¢ via Novig
• Total: Over 8.5 @ 49¢ via Novig

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 current available odds.

Game info & first pitch details

Saturday's MLB game between the Braves and Phillies at Truist Park is scheduled to start at 7:15 PM ET.

• Who: Philadelphia Phillies vs. Atlanta Braves
• Date: Saturday, September 12, 2026
• Time: 7:15 PM ET/4:15PM PT
• Venue: Truist Park

Conclusion

We predict the Braves, with a 54.2% win probability, will likely beat the Phillies in Saturday's MLB 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 MLB prediction model. Our editorial team reviews the resulting content for accuracy and presentation before publication.