Elise Mertens #23Belgium00 – 2Naomi Osaka #13Japan2

Signal quality Medium · Uncertainty band Strong lean · Market price 1.44

The read

Osaka's superior recent form, strong hard-court record, and H2H edge give her a clear advantage, though Mertens' competitiveness keeps confidence at medium.

• Osaka leads H2H 5-3 overall and 2-0 on hard courts in 2024-2026, including a straight-set win on grass in June 2026.
• Osaka's last 15 overall record: 11-4 (73.3%), with 58.8% games won; Mertens: 9-6 (60%), 51.9% games won.
• On hard courts in last 15, Osaka is 3-1 (75%) with 55.1% games won; Mertens has only 1 hard-court match in window (win, but small sample).
• Osaka's serve dominance: 74.4% first-serve points won, 52.6% second-serve points won in last 15; Mertens: 71.1% and 40.6%.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Osaka's superior form and H2H edge suggest she can cover a -2.5 game handicap, though Mertens' competitiveness keeps confidence low.

• Osaka's average game margin in last 15 wins: +4.5 games; Mertens' average loss margin: -3.8 games.
• Hard-court H2H: Osaka's wins have an average margin of 4.0 games.
• Osaka's recent hard-court form shows comfortable wins.

Signal quality Medium · Uncertainty band Lean · Market price 1.50

The read

Osaka's strong start trend and high first-set conversion rate make her likely to take the opener, supported by recent H2H.

• Osaka has won the first set in 4 of her last 5 matches; Mertens lost first set in 3 of last 5.
• Osaka's first-set win conversion career rate is 90%; Mertens' is 88%.
• In their last meeting (June 2026), Osaka won first set 6-3.

Signal quality Medium · Uncertainty band Near coin-flip · Market price 2.00

The read

Osaka's ability to dominate sets and Mertens' recent struggles in straight-set losses make a 2-0 Osaka win the most likely set outcome.

• Osaka has won 8 of her last 11 matches in straight sets; Mertens lost 6 of last 9 in straight sets.
• In their last meeting (June 2026), Osaka won 2-0.
• Osaka's hard-court record in last 15: 3-1, with 2 straight-set wins.

Signal quality Medium · Uncertainty band Strong lean · Not priced

The read

Both players are capable servers on hard courts, making over 8.5 aces likely based on recent and H2H data.

• Osaka averages 6.2 aces per match in last 15; Mertens averages 4.4.
• On hard courts in last 15, Osaka averages 7.0 aces; Mertens had 8 aces in her only hard-court match.
• Combined average aces in H2H: 8.6 per match.

Signal quality Medium · Uncertainty band Lean · Not priced

The read

Mertens' high double-fault rate, especially on hard courts, pushes the combined total over 6.5.

• Mertens averages 5.3 double faults per match in last 15; Osaka averages 2.2.
• On hard courts, Mertens had 11 double faults in her only recent match; Osaka averages 3.5.
• H2H double faults average 10.5 per match, with Mertens contributing heavily.