Yeon Woo Ku vs Ayumi Koshiishi Head-to-Head Stats, Results & Performance Comparison

• Second serve performance is crucial. Ku has recently won 39.23% of points on their second serve, outperforming Koshiishi at 35.94%. Could this give Ku an edge in the match?
• In terms of returning second serves, Ku also leads with 51.82% compared to Koshiishi's 48.33%, suggesting a stronger return game.
• Comparing first serve return effectiveness, Ku again holds an advantage at 35.89% whereas Koshiishi is at 33.9%.
• Under pressure, Ku has saved 49.03% of breakpoints, slightly ahead of Koshiishi's 44.67% which may provide Ku an advantage under crucial situations.
• Looking at the past year, Ku has a better match-winning percentage at 66.67% (W/L 48/24) compared to Koshiishi's 57.75% (W/L 41/30). Who has been more consistent?
• Analyzing surface preference, Koshiishi performs best on hard courts with a 64% win rate, while Ku excels on indoor hard courts with a 69% win rate.
• Both players have mainly competed in the Challengers/ITF tournaments > $10K over the last year, but Ku has a higher success rate of 67.24% compared to Koshiishi's 57.75%.
• Koshiishi has a slight edge in opponent quality, facing higher-ranked opponents with an average rank of 391.04 compared to Ku's 421.81.
• If the match reaches a deciding set, Koshiishi might be favored as they've won 75% of such situations recently versus Ku’s 50%.
• In converting breakpoints, Koshiishi has a marginal advantage, with a conversion rate of 39.11% compared to Ku's 38.58%.

Editorial Prediction (September 4, 2025, UTC):

The upcoming match offers a compelling comparison of strengths and recent performance statistics between Koshiishi and Ku.

Ku has consistently shown superior second serve success and better return game percentages, demonstrating strength in pivotal areas that can decide match outcomes.

Despite Koshiishi's excellent performance in deciding sets and slightly higher quality of opponents, Ku's overall match-winning consistency and breakpoint savings ability give them the upper hand.

The statistics indicate that Ku is the likely winner for the upcoming match, given their well-rounded and more consistent recent performances.