Hanyu Guo #168China00 – 2Kayla Day #127United States2

Signal quality Medium · Uncertainty band Lean · Market price 1.60

The read

Day's strong 2026 hard-court record and superior serve metrics give her a clear edge on this surface, while Guo's limited and weak hard-court results reduce her chances.

• Kayla Day has a 14-4 hard-court record in 2026, while Hanyu Guo is 1-3 on hard courts this year.
• Day's last15 overall first-serve points won is 68.9% vs Guo's 60.9%, indicating a significant serve edge.
• Guo's last15 hard-court sample is only 2 matches (1-1), making her recent hard-court form unreliable.
• Day's recent form includes a Wimbledon qualifying run and a close loss to Madison Keys, showing competitive level against higher-ranked players.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

The lack of a clear dominance in serve or return suggests a competitive first set, likely exceeding 9.5 games.

• Guo's last15 hard-court matches averaged 23 games per match, suggesting longer sets.
• Day's last15 overall matches have seen 53.5% of games won, indicating tight sets.
• No H2H data, but both players have similar return points won percentages (~46% for Guo, ~42% for Day).

Signal quality Medium · Uncertainty band Slight lean · Market price 1.65

The read

Day's serve dominance is likely to give her an early advantage in the match, making her the favorite to win the first set.

• Day's first-serve points won on hard courts in her last15 is 70.4% (1 match), while Guo's is 62.4% (2 matches).
• Guo's first-set win conversion career is 86%, but her recent hard-court first-set performance is unknown due to small sample.
• Day's overall last15 first-serve points won is 68.9%, suggesting she starts sets strongly.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Day's higher ace count, especially on hard courts, combined with Guo's modest contribution, makes over 5.5 total aces likely.

• Day averages 4.0 aces per match in her last15 overall, with 5.3 on clay and 5.0 on hard (1 match).
• Guo averages 1.6 aces per match in her last15 overall, with 2.0 on hard.
• Combined, their recent averages suggest around 5.6 aces per match.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Day's high double-fault rate, especially on hard courts, combined with Guo's average, pushes the total double faults over 5.5.

• Day averages 3.1 double faults per match in her last15 overall, with 12 in her only hard-court match.
• Guo averages 2.9 double faults per match in her last15 overall, with 0.5 on hard.
• Combined, their recent averages suggest around 6.0 double faults per match.