Tennis bets today: One pick for Friday ft. Fritz vs. Nakashima [8/21/2026]

Updated: August 21, 2026, 2:25 PM ET | First published: August 21, 2026, 12:04 AM ET

Written by Ryan Leaver, Senior Sports and Betting Editor

Get ATP & WTA predictions and picks for Friday, August 21, 2026.

Tennis Best Bets. — These tennis betting picks for August 21, 2026, are based on the latest odds and probabilities for Friday's ATP & WTA matches.

Today’s tennis picks for August 21, 2026 are here, with Taylor Fritz vs. Brandon Nakashima among the top plays identified by our model across Friday’s tennis slate.

Dimers’ predictive analytics engine runs 24/7, going over the latest tennis odds to unearth genuine betting edges. The result? Data-backed picks that help Dimers Pro members make smarter decisions.

List of tennis picks today [8/21, updated 2:24PM ET]

Below, you’ll find today’s tennis best bets, ranked by edge for Friday, August 21, 2026.

ATP Cincinnati Open: Brandon Nakashima vs. Taylor Fritz Under 25.5 total games (-120)

Edge: 3.3%
Probability: 57.8%
Matchup: Taylor Fritz vs. Brandon Nakashima (3:00PM ET)

Our model has identified value on Under 25.5 total games in Brandon Nakashima vs. Taylor Fritz at -120 odds in their matchup at ATP Cincinnati Open. A 57.8% probability produces an edge of 3.3%, making this the strongest play for today's tennis slate.

Tennis best bets summary: Friday, 8/21/2026

As of 2:24PM ET, here is our top tennis bet by edge recommended by our model:

Matchup	Bet	Odds	Edge	Prob.
Fritz vs. Nakashima	Under 25.5 total games	-120 @ DraftKings	3.3%	57.8%

List of upcoming tennis matches to bet on now

ATP Cincinnati: Brandon Nakashima vs. Taylor Fritz (3:00PM ET, Friday)
ATP Cincinnati: Frances Tiafoe vs. Lorenzo Musetti (7:00PM ET, Friday)
WTA Cincinnati: Marta Kostyuk vs. Coco Gauff (8:30PM ET, Friday)
WTA Cincinnati: Iga Swiatek vs. Jessica Pegula (11:00AM ET, Saturday)
ATP Cincinnati: Arthur Fils vs. Flavio Cobolli (1:30PM ET, Saturday)

Conclusion

Our tennis best bets are locked and loaded for August 21, 2026, featuring plays such as under 25.5 total games in the Brandon Nakashima vs. Taylor Fritz 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.

Written by

Ryan Leaver

Senior Sports and Betting Editor

Ryan Leaver uses advanced statistical models and simulations to predict outcomes and provide predictions for the NBA, NFL, college football, college basketball, and soccer. He offers detailed game previews, best bets, props, and futures articles.

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