Cardinals vs Nationals Prediction and MLB Tips - 20 September 2026
Last updated: Sep 18, 2026, 9:41PM | Published: Sep 18, 2026, 7:30PM
The St. Louis Cardinals will face the Washington Nationals in MLB action at Busch Stadium on Sunday, starting at 9:15am AEST.
Michael McGreevy (7-9, 3.82 ERA) will start on the mound for the Cardinals, pitting him against Andrew Alvarez (2-6, 3.35 ERA) for the Nationals.
This article features Stats Insider's top betting tips for the Cardinals vs Nationals game, along with the latest betting odds in Australia.
Who Will Win?
Utilising advanced computer power and data, Stats Insider has simulated the outcome of Sunday's St. Louis vs Washington MLB match-up 10,000 times.
Our independent predictive analytics model gives the Cardinals a 55% chance of beating the Nationals at Busch Stadium.
Cardinals vs Nationals: Odds
The current betting odds in Australia for Sunday's MLB game at Busch Stadium are shown here:
- Head to Head: Cardinals $1.77, Nationals $2.10
- Line: Cardinals -1.5 ($2.70), Nationals +1.5 ($1.49)
- 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 Cardinals at $1.77 and the Nationals at $2.10.
The Cardinals are listed as 1.5-run favourites against the Nationals, with odds of $2.70 available at TAB.
For the underdog Nationals (+1.5) to cover the line, TAB offers odds of $1.49.
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 Nationals (+1.5) are predicted to cover the line 63% of the time, while the 8.5-run over/under is expected to go over 53% of the time.
Cardinals vs Nationals: Best Bets
- Head to Head: St. Louis at $1.77 with TAB
- Line: Cardinals -1.5 at $2.70 with TAB
- Total Runs: Over 8.5 at $1.91 with TAB
Our Cardinals vs Nationals predictions are based on complex simulations and gambling experience to provide you with the best possible advice 24/7/365.
Even though the Nationals are more likely to cover the line, our best bet of Cardinals -1.5 is based on the chance of that happening, as projected by our predictive analytics model, and the top odds available.
Cardinals vs Nationals: Prediction
Stats Insider provides full betting coverage of the St. Louis vs Washington game on Sunday, including data-driven predictions and the best betting tips.
Our model updates frequently, so refresh this page for the latest betting analysis before the St. Louis vs Washington match-up.
As always, see Stats Insider's Best Bets for the best tips for every MLB game, plus predictions for a wide range of other sports.
Cardinals vs Nationals: Essential Details
The game between the Cardinals and Nationals at Busch Stadium is scheduled to commence at 9:15am AEST on Sunday.
- Teams: St. Louis Cardinals vs Washington Nationals
- Date: Sunday 20 September 2026
- Time: 9:15am AEST
- Venue: Busch Stadium
All dates and times in this article are in Australian Eastern Standard Time (AEST), unless otherwise stated.
Conclusion
Our St. Louis vs Washington 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 trustworthy and reliable, giving you the knowledge you need to make informed decisions with confidence.
If you decide to use our predictions for betting purposes, it's crucial that you gamble responsibly and manage your finances effectively. For free and confidential support, call 1800 858 858 or visit gamblinghelponline.org.au.
More on MLB
Stats Insider is your home for betting on the MLB in Australia, with the latest MLB betting news, tips for every MLB game, and futures odds for the MLB.
