Stefanos Tsitsipas vs. Fabian Marozsan At the Western & Southern Open in Cincinnati on Saturday, August 9, 2025, No. 29 Stefanos Tsitsipas faces No. 51 Fabian Marozsan in a hard-court battle that’s shaping up to be more dramatic than the seedings suggest .
Tsitsipas has had a rocky season—slumping down from a top 10 ranking and experiencing early-round exits. However, the recent return of his father to his coaching team could spark a resurgence . Meanwhile, Marozsan has shown his mettle on hard courts and possesses the game to pressure opponents with his power and height advantage, making him a slight favorite in some quarters .
Simulations from Dimers model give Tsitsipas a 59% chance to win, with a similar edge in the first set . Stats Insider’s forecasting aligns closely with that prediction — also pegging Tsitsipas at around 59% win probability . Yet, Tennis Tonic argues that Marozsan could upset, calling the Hungarian the pick to win in three sets .
Prediction: Backing experience and motivation, Tsitsipas is likely to edge a tight three-setter. Scripts may favor his fluid all-court game if he rediscovers rhythm under his father’s guidance.
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Casper Ruud vs. Arthur Rinderknech
Also on August 9, the 11th seed Casper Ruud squares off against France’s Arthur Rinderknech in what looks set to be a comfortable outing for the Norwegian .
Ruud dominates their head-to-head 4–0, never dropping a set against Rinderknech—including their latest clash at the Madrid Open earlier this year . His hard-court form this season has been solid (14–5 record), while Rinderknech’s results are more patchy, albeit highlighted by recent wins .
Betting odds heavily favor Ruud—implied win probabilities hover around 68%–70% .
Prediction: Ruud should dispatch Rinderknech in straight sets, leveraging his baseline consistency and head-to-head dominance.
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Summary Table
Matchup Edge & Analysis Prediction
Tsitsipas vs. Marozsan Tsitsipas has talent and motivation; Marozsan is underrated and dangerous. Odds ~59% for Tsitsipas. Tsitsipas in 3 sets
Ruud vs. Rinderknech Ruud dominates head-to-head (4–0), strong hard-court form. Favorited at ~70% probability. Ruud in straight sets
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