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Emma Navarro faces Lois Boisson in the US Open WTA round of 64 on 30 August, with the best-of-three match played on hard court.
Navarro is a clear favourite in the market and also won their only previous meeting. Boisson does bring some stronger recent serving numbers, but the wider season record and return figures leave Navarro with the stronger overall case.Navarro leads their rivalry 1-0 after beating Boisson at the Beijing WTA event on 29 September 2025. She won that hard-court meeting in straight sets and took seven games to Boisson's two, giving Navarro the only direct evidence available from this match-up.
Navarro E.
Boisson L.
Navarro is 6-12 on hard courts this season, while Boisson has a smaller 3-3 record. The efficiency numbers are more revealing: Navarro has won 63% of service games and converted 56% of break points, compared with Boisson's 41% and 39%, which gives Navarro more ways to apply pressure when rallies turn into break chances.
Navarro has split her last 10 matches at 5-5, while Boisson is 3-7. Boisson has actually protected serve better in that spell, winning 76% of service games against Navarro's 68%, but Navarro has produced more return pressure and has been much stronger when matches reach a deciding set.
Bookmakers price Navarro at 1.22 against Boisson at 4.33, with first-set prices of 1.33 and 3.4. That makes Navarro a strong favourite from the start rather than only over the full match.
Navarro E.
Boisson L.
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Boisson's recent serving numbers give her a route into the contest, particularly if Navarro's own service level drops. The wider picture still leans the other way: Navarro has the stronger recent return record, a better overall season record and the only previous win between them, while Boisson enters with the lighter recent workload.
Prediction
Emma Navarro
Lois Boisson
The overall indicators lean clearly towards Emma Navarro. The market strongly favours her, and her better season record, stronger return numbers and previous win over Lois Boisson outweigh Boisson's recent advantage in service games won. Boisson has enough serving form to make stretches competitive, but Navarro has the broader set of advantages.
Odds
