Tennis bets today: 10 picks for Tuesday ft. Gauff vs. Li [8/18/2026]

WTA Cincinnati Open: Ann Li +5.5 games (-108)

• Edge: 8.1%
• Probability: 60%
• Matchup: Coco Gauff vs. Ann Li (3:00PM ET)

Our model has identified value on Ann Li +5.5 games at -108 odds in their matchup at WTA Cincinnati Open. A 60% probability produces an edge of 8.1%, making this the strongest play for today's tennis slate.

WTA Cincinnati Open: Sloane Stephens vs. Marta Kostyuk Over 18.5 total games (-120)

• Edge: 7.1%
• Probability: 61.7%
• Matchup: Marta Kostyuk vs. Sloane Stephens (3:00PM ET)

At WTA Cincinnati Open, Marta Kostyuk vs. Sloane Stephens over 18.5 total games carries a 7.1% edge and a probability of 61.7% at -120 odds, according to our model.

ATP Cincinnati Open: Joao Fonseca -4.5 (+110)

• Edge: 6.8%
• Probability: 54.4%
• Matchup: Joao Fonseca vs. Christopher O'Connell (11:00AM ET)

Joao Fonseca -4.5 vs. Christopher O'Connell at +110 odds shows a 6.8% edge, supported by a 54.4% probability in simulations of the ATP Cincinnati Open match.

ATP Cincinnati Open: Taylor Fritz -4.5 (+114)

• Edge: 5.2%
• Probability: 52%
• Matchup: Taylor Fritz vs. Daniel Merida (12:30PM ET)

A 5.2% edge and 52% probability makes Taylor Fritz -4.5 vs. Daniel Merida a value play in the Taylor Fritz vs. Daniel Merida matchup, per our model.

WTA Cincinnati Open: Sloane Stephens +6.5 (-140)

• Edge: 5.2%
• Probability: 63.6%
• Matchup: Marta Kostyuk vs. Sloane Stephens (3:00PM ET)

Sloane Stephens +6.5 at -140 odds presents a 5.2% edge, with simulations resulting in a probability of 63.6%.

ATP Cincinnati Open: Nuno Borges ML (+165)

• Edge: 3.9%
• Probability: 41.7%
• Matchup: Andrey Rublev vs. Nuno Borges (11:00AM ET)

Our model finds value on Nuno Borges to win at +165 odds at ATP Brisbane, supported by an edge of 3.9%.

ATP Cincinnati Open: Christopher O'Connell vs. Joao Fonseca Under 22.5 total games (-128)

• Edge: 3.7%
• Probability: 59.8%
• Matchup: Joao Fonseca vs. Christopher O'Connell (11:00AM ET)

Our model has uncovered value on Joao Fonseca vs. Christopher O'Connell Under 22.5 total games at -128 odds. A 59.8% probability produces a 3.7% edge, making this a strong play for today's tennis action.

WTA Cincinnati Open: Marie Bouzkova ML (+155)

• Edge: 3.5%
• Probability: 42.7%
• Matchup: Marie Bouzkova vs. Iva Jovic (8:30PM ET)

A 3.5% edge on a 42.7% probability makes Marie Bouzkova to win at +155 odds a solid value play in this WTA Cincinnati Open matchup.

WTA Cincinnati Open: Xinyu Wang +5.5 (+106)

• Edge: 3.3%
• Probability: 51.9%
• Matchup: Aryna Sabalenka vs. Xinyu Wang (7:00PM ET)

Our model projects value on Xinyu Wang +5.5 at +106 odds. A 51.9% probability produces a 3.3% edge, making Xinyu Wang the favorable side in today's WTA Cincinnati Open matchup.

ATP Cincinnati Open: Frances Tiafoe ML (+115)

• Edge: 3.1%
• Probability: 49.6%
• Matchup: Learner Tien vs. Frances Tiafoe (8:10PM ET)

Rounding out our top 10 bets, Frances Tiafoe to defeat Learner Tien at +115 odds shows a 49.6% probability and a 3.1% edge.

Tennis best bets summary: Tuesday, 8/18/2026

As of 7:13AM ET, here are our top tennis bets by edge recommended by our model:

List of upcoming tennis matches to bet on now

• WTA Cincinnati: Madison Keys vs. Katerina Siniakova (11:00AM ET, Tuesday)
• ATP Cincinnati: Nuno Borges vs. Andrey Rublev (11:00AM ET, Tuesday)
• ATP Cincinnati: Christopher O'Connell vs. Joao Fonseca (11:00AM ET, Tuesday)
• WTA Cincinnati: Mirra Andreeva vs. Janice Tjen (12:10PM ET, Tuesday)
• ATP Cincinnati: Lorenzo Musetti vs. Michael Zheng (12:10PM ET, Tuesday)
• ATP Cincinnati: Daniel Merida vs. Taylor Fritz (12:30PM ET, Tuesday)
• WTA Cincinnati: Elina Svitolina vs. Xiyu Wang (2:00PM ET, Tuesday)
• ATP Cincinnati: Daniil Medvedev vs. Brandon Nakashima (2:30PM ET, Tuesday)
• WTA Cincinnati: Ann Li vs. Coco Gauff (3:00PM ET, Tuesday)
• WTA Cincinnati: Sloane Stephens vs. Marta Kostyuk (3:00PM ET, Tuesday)

Conclusion

Our tennis best bets are locked and loaded for August 18, 2026, featuring plays such as Ann Li +5.5 games vs. Coco Gauff and over 18.5 total games in the Marta Kostyuk vs. Sloane Stephens matchup. Powered by advanced simulations, these picks are here to boost your betting game.

Our predictions are rooted in current data to help you make informed decisions. For additional resources and advice, head to our Responsible Gambling hub.

All odds and probabilities in this article are correct and accurate at the time of publication.