Marlins vs Cardinals Prediction and MLB Tips - 21 April 2026
Last updated: Apr 20, 2026, 10:40PM | Published: Apr 19, 2026, 5:33PM
The Miami Marlins will take on the St. Louis Cardinals in MLB action at loanDepot park on Tuesday, commencing at 8:40am AEST.
The Marlins will send Max Meyer (1-0, 4.12 ERA) to the mound, pitting him against Michael McGreevy (1-1, 2.49 ERA) for the Cardinals.
This article features Stats Insider's prediction and tips for the Marlins vs Cardinals game, as well as the latest betting odds in Australia.
Who Will Win?
Utilising trusted machine learning and data, Stats Insider has simulated the outcome of Tuesday's Miami vs St. Louis MLB game 10,000 times.
Our proven predictive analytics model gives the Marlins a 55% chance of winning against the Cardinals at loanDepot park.
Marlins vs Cardinals: Odds
The latest betting odds in Australia for Tuesday's MLB game at loanDepot park are listed here:
- Head to Head: Marlins $1.74, Cardinals $2.15
- Line: Marlins -1.5 ($2.54), Cardinals +1.5 ($1.54)
- 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 Marlins at $1.74 and the Cardinals at $2.15.
The Marlins are listed as 1.5-run favourites against the Cardinals, with odds of $2.54 available at TAB.
For the underdog Cardinals (+1.5) to cover the line, TAB offers odds of $1.54.
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 Cardinals (+1.5) are predicted to cover the line 62% of the time, while the 8.5-run over/under is expected to go over 52% of the time.
Marlins vs Cardinals: Betting Tips
- Head to Head: St. Louis at $2.15 with TAB
- Line: Marlins -1.5 at $2.54 with TAB
- Total Runs: Over 8.5 at $1.91 with TAB
Stats Insider's Marlins vs Cardinals predictions are based on complex modelling and wagering expertise to help you place smarter bets with your chosen online bookie.
And while the Marlins have a higher chance of winning the game, betting on the Cardinals to win is our recommended option because of the edge identified when comparing our data-led probabilities to the odds currently on offer.
Taking advantage of the edges published on Stats Insider is crucial to achieving long-term success as a punter.
Even though the Cardinals are more likely to cover the line, our best bet of Marlins -1.5 is based on the chance of that happening, as suggested by our predictive analytics model, and the top odds available.
Marlins vs Cardinals: Prediction
Stats Insider provides full betting coverage of the Miami vs St. Louis game on Tuesday, including data-driven predictions and expert tips.
Remember, our model updates regularly, so refresh this page for the latest betting predictions before the Miami vs St. Louis game.
As always, see our Best Bets to get the best tips on every MLB game, plus predictions for a wide range of other sports.
Marlins vs Cardinals: Essential Details
The match-up between the Marlins and Cardinals at loanDepot park is scheduled to begin at 8:40am AEST on Tuesday.
- Teams: Miami Marlins vs St. Louis Cardinals
- Date: Tuesday 21 April 2026
- Time: 8:40am AEST
- Venue: loanDepot park
All dates and times mentioned in this article are in Australian Eastern Standard Time (AEST), unless otherwise noted.
Conclusion
Our Miami vs St. Louis 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 cutting-edge 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 predictions for betting purposes, it's crucial to 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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