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Mariners vs. Cardinals prediction: Seattle favored to win Sunday's MLB matchup [4/26/2026]
Updated: | First published:
Written by Dave Garofolo, Content Producer
Get Seattle Mariners vs St. Louis Cardinals predictions for MLB Sunday.
MLB action continues on Sunday at 2:15 PM ET as the Seattle Mariners lock horns with the St. Louis Cardinals at Busch Stadium.
The Cardinals will start Michael McGreevy (1-2, 3.29 ERA), while the Mariners will counter with Emerson Hancock (2-1, 2.83 ERA).
Based on the latest simulation results, Dimers' proven MLB model predicts the Mariners as the most likely winner of the Mariners vs. Cardinals game.
This article offers further insights into Sunday's matchup, including best bets and picks.
Mariners vs. Cardinals prediction: Who will win and cover?
Using trusted machine learning and statistical analysis, we have simulated the result of Sunday's MLB matchup between the Mariners and Cardinals, forming part of our MLB predictions coverage.
Our independent predictive model gives the Mariners a 56% chance of defeating the Cardinals.
According to our model, the Cardinals (+1.5) have a 56% chance of covering the run line, while the over/under total of 8.5 runs has a 51% chance of going over.
Mariners vs. Cardinals odds [4/26/2026]
We have researched the best MLB odds in America for this game, which are listed here:
| Bet Type | Mariners | Cardinals |
|---|---|---|
| Run Line | -1.5 (+125) | +1.5 (-142) |
| Moneyline | -130 | +114 |
| Total | o8.5 (-115) | u8.5 (-105) |
All odds are correct at the time of publication and are subject to change.
Mariners vs. Cardinals picks and best bet
After matching our predictions against the best available odds, we can reveal our picks for each of the major markets. Plus, find our best bet for the game below:
| Bet Type | Pick | Bet Now |
|---|---|---|
| Run Line | Mariners -1.5 | +125 |
| Moneyline | Mariners | -130 |
| Total | Over 8.5 | -115 |
According to our MLB best bets, the top play to make on this game is Mariners to win.
These picks are based on our probabilities matched against the implied probabilities from the sportsbook odds.
Mariners vs. Cardinals game-day updates and essential details
Sunday's MLB game between the Cardinals and Mariners at Busch Stadium is scheduled to start at 2:15 PM ET.
- Who: Seattle Mariners vs. St. Louis Cardinals
- Date: Sunday, April 26, 2026
- Time: 2:15 PM ET/11:15AM PT
- Venue: Busch Stadium
Conclusion
We predict the Mariners, with a 56% win probability, will likely beat the Cardinals in Sunday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
Dave Garofolo uses sophisticated AI-driven analytics to make predictions and evaluate player performances in the NBA, MLB, NFL, NHL, NCAAM, and PGA TOUR tournaments, crafting insightful game and prop previews.
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