Mariners vs Cardinals Prediction and MLB Tips - 9 September 2025
Last updated: Sep 9, 2025, 1:41AM | Published: Sep 8, 2025, 1:29PM
The Seattle Mariners will face the St. Louis Cardinals in MLB action at T-Mobile Park on Tuesday, beginning at 11:40am AEST.
Bryan Woo (12-7, 3.02 ERA) will start for the Mariners, pitting him against Miles Mikolas (7-10, 4.88 ERA) for the Cardinals.
This article features Stats Insider's prediction and tips for the Mariners vs Cardinals game, plus the latest betting odds in Australia.
Who Will Win?
Using trusted computer power and data, Stats Insider has simulated the outcome of Tuesday's Seattle vs St. Louis MLB game 10,000 times.
Our proven predictive analytics model gives the Mariners a 68% chance of beating the Cardinals at T-Mobile Park.
Mariners vs Cardinals: Odds
The current betting odds in Australia for Tuesday's MLB game at T-Mobile Park are listed here:
- Head to Head: Mariners $1.41, Cardinals $2.98
- Line: Mariners -1.5 ($1.90), Cardinals +1.5 ($1.92)
- Total (Over/Under 7.5 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 Mariners at $1.41 and the Cardinals at $2.98.
The Mariners are listed as 1.5-run favourites against the Cardinals, with odds of $1.90 available at TAB.
For the underdog Cardinals (+1.5) to cover the line, TAB offers odds of $1.92.
The over/under for total runs scored is set at 7.5 with TAB, which has odds of $1.91 for the over and $1.91 for the under.
According to Stats Insider's analytics model, the bookies have got it right and both the Mariners and the Cardinals have a 50% chance of covering the line.
The 7.5-run over/under is expected to go over 53% of the time.
Mariners vs Cardinals: Betting Tips
- Head to Head: Seattle at $1.41 with TAB
- Line: Cardinals +1.5 at $1.92 with TAB
- Total Runs: Over 7.5 at $1.91 with TAB
Today's Mariners vs Cardinals betting tips are based on market-leading simulations and gambling experience to provide you with the best possible advice around the clock.
Mariners vs Cardinals: Prediction
Stats Insider provides full betting coverage of the Seattle vs St. Louis game on Tuesday, including data-driven predictions and live win probabilitiestips.
Our model updates regularly, so keep checking this page for the latest betting predictions before the Seattle vs St. Louis game.
As always, see Stats Insider's Best Bets for betting tips on every MLB game, as well as predictions for a wide range of other sports.
Mariners vs Cardinals: Essential Details
The game between the Mariners and Cardinals at T-Mobile Park is scheduled to commence at 11:40am AEST on Tuesday.
- Teams: Seattle Mariners vs St. Louis Cardinals
- Date: Tuesday 9 September 2025
- Time: 11:40am AEST
- Venue: T-Mobile Park
All dates and times in this article are in Australian Eastern Standard Time (AEST), unless otherwise stated.
Conclusion
Our Seattle vs St. Louis predictions have been made after running 10,000 data-driven simulations of the game, all curated by our team of experienced 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 decide to use our predictions for betting purposes, it's important that you gamble responsibly and manage your finances effectively. For free and confidential support, call 1800 858 858 or visit gamblinghelponline.org.au.
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