Diamondbacks vs Phillies Prediction and MLB Tips - 20 September 2025
Last updated: Sep 20, 2025, 1:42AM | Published: Sep 18, 2025, 7:31PM
The Arizona Diamondbacks will sqaure off with the Philadelphia Phillies in MLB action at Chase Field on Saturday, beginning at 11:40am AEST.
Ryne Nelson (7-3, 3.34 ERA) will start for the Diamondbacks, up against Taijuan Walker (5-8, 4.17 ERA) for the Phillies.
This article features Stats Insider's best betting tips for the Diamondbacks vs Phillies game, plus the latest betting odds in Australia.
Who Will Win?
Using trusted computer power and data, Stats Insider has simulated the result of Saturday's Arizona vs Philadelphia MLB match-up 10,000 times.
Our proven predictive analytics model currently gives the Diamondbacks a 51% chance of beating the Phillies at Chase Field.
Diamondbacks vs Phillies: Odds
The current betting odds in Australia for Saturday's MLB game at Chase Field are shown below:
- Head to Head: Diamondbacks $1.80, Phillies $2.05
- Line: Diamondbacks -1.5 ($2.60), Phillies +1.5 ($1.53)
- 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 $1.80 and the Phillies at $2.05.
The Diamondbacks are 1.5-run favourites against the Phillies, with odds of $2.60 available at TAB.
For the underdog Phillies (+1.5) to cover the line, TAB offers odds of $1.53.
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 65% of the time, while the 9-run over/under is expected to go over 56% of the time.
Diamondbacks vs Phillies: Betting Tips
- Head to Head: Philadelphia at $2.05 with TAB
- Line: Phillies +1.5 at $1.53 with TAB
- Total Runs: Over 9 at $1.91 with TAB
Stats Insider's Diamondbacks vs Phillies best bets are based on world-class modelling and wagering experience to bring you the best possible advice around the clock.
While the Diamondbacks have a higher chance of winning the game, betting on the Phillies to win is our recommended option due to the 2.1% edge identified when comparing our data-driven probabilities to the odds currently on offer.
Making use of the edges published here at Stats Insider is crucial to being a profitable punter in the long run.
Diamondbacks vs Phillies: Prediction
Stats Insider provides full coverage of the Arizona vs Philadelphia game on Saturday, including data-driven predictions and live scorestips.
Remember, our model updates regularly, so keep checking this page for the latest betting analysis before the Arizona vs Philadelphia match-up.
As always, see Stats Insider's Best Bets to get the best tips on every MLB game, as well as predictions for a wide range of other sports.
Diamondbacks vs Phillies: Essential Details
The match-up between the Diamondbacks and Phillies at Chase Field is scheduled to start at 11:40am AEST on Saturday.
- Teams: Arizona Diamondbacks vs Philadelphia Phillies
- Date: Saturday 20 September 2025
- Time: 11:40am AEST
- Venue: Chase Field
All dates and times mentioned in this article are in Australian Eastern Standard Time (AEST), unless otherwise noted.
Conclusion
Our Arizona vs Philadelphia predictions have been made thanks to 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 trustworthy and reliable, giving you the confidence to make informed decisions.
If you decide to use our MLB predictions for betting purposes, it's crucial to 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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