Phillies vs Mariners Prediction and MLB Tips - 21 August 2025
Last updated: Aug 20, 2025, 5:06PM | Published: Aug 19, 2025, 7:34PM
The Philadelphia Phillies will take on the Seattle Mariners in MLB action at Citizens Bank Park on Thursday, beginning at 3:05am AEST.
The Phillies will have Jesús Luzardo (11-6, 4.21 ERA) start, pitting him against Luis Castillo (8-6, 3.48 ERA) for the Mariners.
This article features Stats Insider's best betting tips for the Phillies vs Mariners game, as well as the latest betting odds in Australia.
Who Will Win?
Utilising trusted computer power and data, Stats Insider has simulated the result of Thursday's Philadelphia vs Seattle MLB game 10,000 times.
Our leading predictive analytics model currently gives the Phillies a 58% chance of winning against the Mariners at Citizens Bank Park.
Phillies vs Mariners: Odds
The latest betting odds in Australia for Thursday's MLB game at Citizens Bank Park are shown here:
- Head to Head: Phillies $1.65, Mariners $2.30
- Line: Phillies -1.5 ($2.35), Mariners +1.5 ($1.62)
- Total (Over/Under 8.5 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 Phillies at $1.65 and the Mariners at $2.30.
The Phillies are listed as 1.5-run favourites against the Mariners, with odds of $2.35 available at TAB.
For the underdog Mariners (+1.5) to cover the line, TAB offers odds of $1.62.
The over/under for total runs scored is set at 8.5 with TAB, which has odds of $1.91 for the over and $1.91 for the under.
According to Stats Insider's model, the Mariners (+1.5) are predicted to cover the line 60% of the time, while the 8.5-run over/under is expected to go over 51% of the time.
Phillies vs Mariners: Best Bets
- Head to Head: Philadelphia at $1.65 with TAB
- Line: Mariners +1.5 at $1.62 with TAB
- Total Runs: Under 8.5 at $1.91 with TAB
These Phillies vs Mariners best bets are based on world-class simulations and wagering intelligence to provide you with the best possible advice around the clock.
Despite the Over being more likely to hit in this game, Under 8.5 is our best bet due to the better odds ($1.91) that are available from TAB.
Phillies vs Mariners: Prediction
Stats Insider provides full coverage of the Philadelphia vs Seattle game on Thursday, including data-driven predictions and expert tips.
Our model updates regularly, so keep checking this page for the latest betting tips before the Philadelphia vs Seattle game.
As always, see our Best Bets for betting tips for every MLB game, plus predictions for a wide range of other sports.
Phillies vs Mariners: Essential Details
The match-up between the Phillies and Mariners at Citizens Bank Park is scheduled to start at 3:05am AEST on Thursday.
- Teams: Philadelphia Phillies vs Seattle Mariners
- Date: Thursday 21 August 2025
- Time: 3:05am AEST
- Venue: Citizens Bank Park
All dates and times in this article are in Australian Eastern Standard Time (AEST), unless otherwise stated.
Conclusion
Our Philadelphia vs Seattle predictions are the result of 10,000 data-driven simulations of the game, all curated by our team of expert 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 knowledge you need to make informed decisions with confidence.
If you choose to use our MLB predictions for betting purposes, it's vital to gamble responsibly and keep track of your money. For free and confidential support, call 1800 858 858 or visit gamblinghelponline.org.au.
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