Ethan Quinn vs. Christopher O'Connell Prediction, Odds, Picks for ATP Washington Open 2025

Ethan Quinn and Christopher O'Connell are scheduled to meet in the round of 64 of the ATP Washington Open event on Monday.

Based on updated simulations, Dimers' advanced tennis model (see Dimers Pro for full access) predicts Ethan Quinn as the most likely winner of the match.

For expanded analysis of Monday's match, including best bets and picks, visit our interactive Quinn vs. O'Connell predictions page.

Quinn vs. O'Connell Prediction: Who Will Win and Advance to the Round of 32?

Using innovative machine learning and data, we have simulated the outcome of Monday's Quinn-O'Connell men's singles match 10,000 times as part of our tennis predictions coverage.

Our independent predictive model gives Quinn a 58% chance of winning against O'Connell at the ATP Washington Open tournament.

Additionally, Quinn has a 56% chance of winning the first set, according to our model.

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Ethan Quinn vs. Christopher O'Connell Odds

We have researched the most up-to-date betting odds in America for this match, which are listed here:

Bet Type	Quinn	O'Connell
Moneyline	-189	+150
First Set	-164	+130

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

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Quinn vs. O'Connell Picks and Best Bets

Our model's strongest edge in today's Quinn vs. O'Connell match is on the moneyline.

Our expert predictions, matched against the best odds, reveal the best tennis picks and tennis best bets for every match throughout the year.

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

Quinn vs. O'Connell Updates and Essential Details

The ATP Washington Open match between Ethan Quinn and Christopher O'Connell is scheduled to begin on Monday at 11:00AM ET.

• Who: Ethan Quinn vs. Christopher O'Connell
• Date: Monday, July 21, 2025
• Approx. Time: 11:00AM ET/8:00AM PT
• Tournament: ATP Washington, USA Men's Singles 2025
• Round: Round of 64

All dates and times in this article are United States Eastern Time unless otherwise noted.

Dimers.com's full preview of Monday's Quinn vs. O'Connell match includes our prediction, picks and the latest betting odds.

Before making any Ethan Quinn vs. Christopher O'Connell picks, be sure to check out the latest tennis predictions and betting advice from Dimers Pro.

Key Tennis Betting Guides and Insights

• Learn how to bet on tennis and understand how tennis odds work
• Explore where sports odds come from and how they’re applied to tennis matches
• Stay informed with guides on where online sports betting is currently legal and which states could legalize next
• Improve your chances with proven sports betting strategies that apply to tennis and more

Conclusion

We predict Ethan Quinn, with a 58% win probability, will likely beat Christopher O'Connell at the ATP Washington Open tournament.

AI and automation have enhanced this article to quickly deliver accurate Quinn vs. O'Connell 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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