Sofia Costoulas vs Radka Zelnickova Head-to-Head Stats, Results & Performance Comparison

• In terms of second serve effectiveness recently, Sofia Costoulas slightly outperformed Radka Zelnickova, winning 40.64% of points compared to Zelnickova’s 37.97%.
• Radka Zelnickova has a slight edge in returning games with a 50.65% win rate on opponents' second serves, narrowly beating Costoulas’s 49.33%.
• When facing first serves, Zelnickova also excels, claiming 33.54% of returns against Costoulas’s 29.73%.
• Under pressure, particularly in saving breakpoints, Zelnickova again comes out ahead by managing to save 51.06% of the time, while Costoulas saves 46.44%.
• Over the past year, Costoulas's match win rate (67.86%) significantly surpasses Zelnickova’s (50.00%).
• Both players favor Hard courts, each having a career win percentage of 62% on this surface. What implications might this have for their matchup?
• Reflecting on the level of competition, Costoulas has faced slightly higher-ranked opponents on average (rank 350.33) compared to Zelnickova’s average opponent rank of 398.17.
• In deciding sets, Costoulas shows a strong performance, winning 71% compared to Zelnickova’s 42% win rate in similar scenarios.

Editorial Prediction (October 21, 2025, UTC):

Analyzing the head-to-head statistics, Sofia Costoulas demonstrates stronger performance trends across various metrics. Her slightly superior second serve effectiveness could give her an edge in longer rallies.

Radka Zelnickova shines in return games and under pressure, such as saving breakpoints, providing a potential advantage in close encounters. However, over the past year, Costoulas has consistently won more matches and faced tougher competition, indicating her robust competitive form.

While both players show proficiency on Hard courts, the clincher could be deciding sets where Costoulas has a remarkable win percentage.

Given these factors, Sofia Costoulas appears to have the upper hand and is more likely to emerge as the winner in this upcoming match.