Marta Kostyuk vs. Sloane Stephens prediction, odds, picks for WTA Cincinnati Open 2026
Get Kostyuk vs Stephens predictions for WTA Cincinnati Open.

Marta Kostyuk will square off with Sloane Stephens in the round of 32 at the WTA Cincinnati event on Tuesday.
Dimers' advanced tennis model projects Marta Kostyuk as the most likely winner in this Kostyuk vs. Stephens prediction.
This article offers an expanded analysis of Tuesday's match, including best bets and picks, backed by the same predictive analytics that recently spotted value throughout Alex Eala's DC Open run.
Kostyuk vs. Stephens prediction: Who will win and advance to the round of 16?
Our famous predictive model gives Kostyuk an 84% chance of beating Stephens at the WTA Cincinnati Open tournament.
Marta Kostyuk vs. Sloane Stephens odds
We have sourced the most up-to-date betting odds in America for this match, which are listed here:
- Moneyline: +570, -649
All odds are correct at the time of publication and are subject to change.
Kostyuk vs. Stephens picks and best bet
After matching our predictions against the best current odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:
- Moneyline: Stephens @ +570 via DraftKings
- First Set: Stephens @ -132 via DraftKings
According to our tennis best bets, the top play to make on this match is Sloane Stephens to win the first set.
These picks are based on our probabilities matched against the implied probabilities from the sportsbook odds.
Kostyuk vs. Stephens updates and essential details
The WTA Cincinnati Open match between Marta Kostyuk and Sloane Stephens is scheduled to begin on Tuesday at 11:00 AM ET.
- Who: Marta Kostyuk vs. Sloane Stephens
- Date: Tuesday, August 18, 2026
- Approx. Time: 11:00 AM ET/8:00AM PT
- Tournament: WTA Cincinnati, USA Women's Singles 2026
- Round: Round of 32
All dates and times in this article are United States Eastern Time unless otherwise noted.
Conclusion
We predict Marta Kostyuk, with an 84% win probability, will likely beat Sloane Stephens at the WTA Cincinnati Open tournament.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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