Nationals vs. Mariners Prediction: Close Contest Projected After New Data Released for Thursday's MLB Matchup [5/29/2025]

The Seattle Mariners will take on the Washington Nationals in MLB action at T-Mobile Park on Thursday, starting at 9:40PM ET.

The Mariners will send Emerson Hancock (2-2, 5.95 ERA) to the mound, while the Nationals have opted for MacKenzie Gore (2-5, 3.46 ERA).

Based on the latest simulations, Dimers' proven MLB model (see Dimers Pro for full access) predicts an equal chance for both the Mariners and Nationals to win today's game.

"Using the latest data, our experts simulated Thursday's Washington-Seattle game 10,000 times," said Dimers' Chief Content Officer, Nick Slade.

"Based on the latest updates and extensive data, we predict a 50-50 chance for both the Mariners and Nationals, making it a highly competitive matchup."

For a closer look at Thursday's matchup, including best bets and picks, visit our interactive Nationals vs. Mariners predictions page.

Mariners vs. Nationals Prediction: Who Will Win, Cover the Run Line?

Using powerful machine learning and statistical analysis, we have simulated the result of Thursday's MLB game between the Nationals and Mariners 10,000 times as part of our MLB predictions coverage.

Our independent predictive model can't split the two teams, giving both the Nationals and Mariners a 50% chance of winning the game.

According to our model, the Nationals (+1.5) have a 69% chance of covering the run line, while the over/under total of 7.5 runs has a 53% chance of going over.

Nationals vs. Mariners Odds [5/29/2025]

We have sourced the best MLB odds in America for this game, which are listed here:

Bet Type	Nationals	Mariners
Run Line	+1.5 (-225)	-1.5 (+170)
Moneyline	+100	-116
Total	o7.5 (-115)	u7.5 (-105)

All odds are correct at the time of publication and are subject to change.

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Nationals vs. Mariners Picks and Best Bets

Our model's strongest edge in today's Nationals vs. Mariners matchup is on the moneyline.

Our expert predictions, matched against the latest odds, reveal the best MLB picks and MLB best bets for every game throughout the season.

Unlimited access to our complete set of picks, including this one, is available via Dimers Pro.

Calling Our Shot's Best Bets Video

Calling Our Shot produces daily MLB betting content, including the latest best bets featured below.

Nationals vs. Mariners Game-Day Updates and Essential Details

Thursday's MLB game between the Mariners and Nationals at T-Mobile Park is scheduled to commence at 9:40PM ET.

• Who: Washington Nationals vs. Seattle Mariners
• Date: Thursday, May 29, 2025
• Time: 9:40PM ET/6:40PM PT
• Venue: T-Mobile Park

Dimers.com's full preview of Thursday's Nationals vs. Mariners matchup includes our prediction, picks and the latest betting odds.

Before making any Washington vs. Seattle picks, be sure to check out the latest MLB predictions and betting advice from Dimers Pro.

Key MLB Betting Guides and Insights

• Explore how MLB odds work and dive into MLB live betting strategies
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Conclusion

We predict a close game between the Nationals and Mariners on Thursday, with each team having a 50% chance of winning.

AI and automation have enhanced this article to quickly deliver accurate Nationals vs. Mariners insights, with human oversight ensuring high editorial quality. Our predictions are based on up-to-date data to help you make informed decisions. For additional resources and advice on responsible gambling, please call 1-800-GAMBLER.

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