Diamondbacks vs Phillies Prediction and MLB Tips - 21 September 2025
Last updated: Sep 21, 2025, 12:09AM | Published: Sep 19, 2025, 7:33PM
The Arizona Diamondbacks will take on the Philadelphia Phillies in Game of the League Series at Chase Field on Sunday, commencing at 10:10am AEST.
Zac Gallen (12-14, 4.73 ERA) will be on the bump for the Diamondbacks, up against Aaron Nola (4-9, 6.44 ERA) for the Phillies.
This article features Stats Insider's free betting tips for the Diamondbacks vs Phillies game, as well as the latest betting odds in Australia.
Who Will Win?
Utilising trusted computer power and data, Stats Insider has simulated the outcome of Sunday's Arizona vs Philadelphia MLB game 10,000 times.
Our independent predictive analytics model currently gives the Diamondbacks a 51% chance of beating the Phillies at Chase Field.
Diamondbacks vs Phillies: Odds
The latest betting odds in Australia for Sunday's MLB game at Chase Field are listed below:
- Head to Head: Diamondbacks $1.87, Phillies $1.95
- Line: Diamondbacks -1.5 ($2.75), Phillies +1.5 ($1.48)
- Total (Over/Under 9 Runs): Over $1.91, Under $1.91
Odds are correct at the time of publication and subject to change.
Looking at the latest head-to-head odds, the bookmakers currently have the Diamondbacks at $1.87 and the Phillies at $1.95.
The Diamondbacks are listed as 1.5-run favourites against the Phillies, with odds of $2.75 available at TAB.
For the underdog Phillies (+1.5) to cover the line, TAB offers odds of $1.48.
The over/under for total runs scored is set at 9 with TAB, which has odds of $1.91 for the over and $1.91 for the under.
According to Stats Insider's model, the Phillies (+1.5) are predicted to cover the line 66% of the time, while the 9-run over/under is expected to go over 52% of the time.
Diamondbacks vs Phillies: Betting Tips
- Head to Head: Philadelphia at $1.95 with TAB
- Line: Phillies +1.5 at $1.48 with TAB
- Total Runs: Over 9 at $1.91 with TAB
These Diamondbacks vs Phillies best bets are based on world-class modelling and betting expertise to help you place smarter bets with your chosen online bookie.
While the Diamondbacks have a higher chance of winning the game, betting on the Phillies to win is our preferred option due to the edge found when comparing our data-driven probabilities to the odds currently on offer.
Making use of the edges seen here at Stats Insider is pivotal to being profitable in the long run.
Diamondbacks vs Phillies: Prediction
Stats Insider provides full betting coverage of the Arizona vs Philadelphia game on Sunday, including data-driven predictions and live win probabilitiestips.
Remember, our model updates regularly, so bookmark this page for the latest betting analysis before the Arizona vs Philadelphia game.
As always, see Stats Insider's Best Bets to get betting tips for every MLB game, as well as predictions for a wide range of other sports.
Diamondbacks vs Phillies: Essential Details
The game between the Diamondbacks and Phillies at Chase Field is scheduled to commence at 10:10am AEST on Sunday.
- Teams: Arizona Diamondbacks vs Philadelphia Phillies
- Date: Sunday 21 September 2025
- Time: 10:10am AEST
- Venue: Chase Field
All dates and times in this article are in Australian Eastern Standard Time (AEST), unless otherwise stated.
Conclusion
Our Arizona vs Philadelphia predictions have been made based on 10,000 data-driven simulations of the game, carefully curated by our team of skilled data scientists and analysts. We use the latest in predictive analytics technology and machine learning to ensure our MLB tips are accurate and reliable, giving you the confidence to make informed decisions.
If you choose to use our MLB predictions for betting purposes, it's crucial that you gamble responsibly and know when to stop. For free and confidential support, call 1800 858 858 or visit gamblinghelponline.org.au.
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