Cardinals vs Nationals Prediction and MLB Tips - 20 September 2026
Last updated: Sep 19, 2026, 11:15PM | Published: Sep 18, 2026, 7:30PM
The St. Louis Cardinals will sqaure off with the Washington Nationals in MLB action at Busch Stadium on Sunday, beginning at 9:15am AEST.
Michael McGreevy (7-9, 3.82 ERA) will be on the bump for the Cardinals, while the Nationals will counter with Andrew Alvarez (2-6, 3.35 ERA).
This article features Stats Insider's best betting tips for the Cardinals vs Nationals game, plus the latest betting odds in Australia.
Who Will Win?
Utilising trusted machine learning and data, Stats Insider has simulated the outcome of Sunday's St. Louis vs Washington MLB match-up 10,000 times.
Our proven predictive analytics model gives the Cardinals a 53% chance of defeating the Nationals at Busch Stadium.
Cardinals vs Nationals: Odds
The current betting odds in Australia for Sunday's MLB game at Busch Stadium are listed below:
- Head to Head: Cardinals $1.85, Nationals $1.97
- Line: Cardinals +1.5 ($1.51), Nationals -1.5 ($2.54)
- 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 Cardinals at $1.85 and the Nationals at $1.97.
The Cardinals are listed as 1.5-run underdogs against the Nationals, with odds of $1.51 available at TAB.
For the favourite Nationals (-1.5) to cover the line, TAB offers odds of $2.54.
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 Cardinals (+1.5) are predicted to cover the line 65% of the time, while the 9-run over/under is expected to go over 51% of the time.
Cardinals vs Nationals: Betting Tips
- Head to Head: St. Louis at $1.85 with TAB
- Line: Cardinals +1.5 at $1.51 with TAB
- Total Runs: Over 9 at $1.91 with TAB
These Cardinals vs Nationals predictions are based on world-class simulations and betting expertise to bring you the best possible advice around the clock.
Cardinals vs Nationals: Prediction
Stats Insider provides full coverage of the St. Louis vs Washington game on Sunday, including data-driven predictions and live win probabilitiestips.
Our model updates frequently, so keep checking this article for the latest betting analysis before the St. Louis vs Washington match-up.
As always, see our Best Bets to get betting tips on every MLB game, as well as predictions for a wide range of other sports.
Cardinals vs Nationals: Essential Details
The match-up between the Cardinals and Nationals at Busch Stadium is scheduled to begin 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 noted.
Conclusion
Our St. Louis vs Washington predictions are the result of 10,000 data-driven simulations of the game, carefully 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, so that you can make informed decisions with confidence.
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.
More on MLB
Stats Insider is your go-to source for betting on the MLB in Australia, with the latest MLB betting news, predictions for every MLB game, and futures odds for the MLB.
