Rockies vs. Nationals Prediction: Washington Predicted to Win Wednesday's MLB Matchup [6/18/2025]

MLB action continues on Wednesday at 6:45PM ET as the Colorado Rockies lock horns with the Washington Nationals at Nationals Park.

The Nationals will have Mitchell Parker (4-7, 4.84 ERA) as their starting pitcher, while the Rockies will counter with Antonio Senzatela (2-10, 6.72 ERA).

Based on updated simulations, Dimers' proven MLB model (see Dimers Pro for full access) predicts the Nationals as the most likely winner of today's game.

"Our team has simulated the outcome of Wednesday's Colorado-Washington game 10,000 times," said Dimers' Chief Content Officer, Nick Slade.

"With the latest updates and numerous other variables, we estimate the Nationals' chance of winning at 58%, with the Rockies at 42%."

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

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

Using powerful machine learning and data, we have simulated the outcome of Wednesday's MLB game between the Rockies and Nationals 10,000 times as part of our MLB predictions coverage.

Our famous predictive model currently gives the Nationals a 58% chance of beating the Rockies.

According to our model, the Rockies (+1.5) have a 59% chance of covering the run line, while the over/under total of 9.5 runs has a 53% chance of staying under.

Rockies vs. Nationals Odds [6/18/2025]

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

Bet Type	Rockies	Nationals
Run Line	+1.5 (-150)	-1.5 (+132)
Moneyline	+134	-155
Total	o9.5 (+102)	u9.5 (-120)

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

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Rockies vs. Nationals Picks and Best Bets

Our model's biggest edge in today's Rockies vs. Nationals matchup is on the moneyline.

Our expert predictions, aligned with the best odds, reveal the best MLB picks and MLB best bets for every game throughout the season.

Unlimited access to our full suite 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 predictions featured below.

Rockies vs. Nationals Game-Day Updates and Essential Details

Wednesday's MLB game between the Nationals and Rockies at Nationals Park is scheduled to commence at 6:45PM ET.

• Who: Colorado Rockies vs. Washington Nationals
• Date: Wednesday, June 18, 2025
• Time: 6:45PM ET/3:45PM PT
• Venue: Nationals Park

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

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

Key MLB Betting Guides and Insights

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Conclusion

We predict the Nationals, with a 58% win probability, will likely beat the Rockies on Wednesday.

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

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