Capitalize on value at the US Open by combining Coco Gauff ML with Under 21.5 total games in her fourth-round match against Naomi Osaka.
We’ve had a great run so far at the 2025 US Open. Now we turn our attention to one of the bigger matchups so far in the tournament.
As Day 9 of the 2025 US Open rolls on, a compelling rematch between Coco Gauff and Naomi Osaka takes center stage at Arthur Ashe Stadium. This clash isn’t just rich in narrative, it’s ripe for some betting value as well.
Gauff, now world No. 3 and fresh off a dominant French Open title, enters with improved serve mechanics, refinements from a biomechanical coach, and a 3–2 H2H edge against Osaka. While Osaka remains a threat, a same-game parlay combining Gauff’s ML (to win outright) with an Under 21.5 total games bet taps into both player strength and match-flow efficiency.
Let’s take a closer look at this Women’s US Open same game parlay.
Naomi Osaka and Coco Gauff will face off at the US Open on Monday for the first time since 2019 ❤️ pic.twitter.com/IDKtmJpGnD
— espnW (@espnW) August 30, 2025
Women’s US Open Same Game Parlay: Osaka vs. Gauff
Coco Gauff ML (−165)
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Gauff, the reigning US Open and French Open champion, leads the H2H rivalry 3–2, including recent wins in 2024 and 2022.
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Her serving form has improved substantially; she committed only four double faults in her dominant third-round win, increasing her first-serve percentage to 76%.
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Modeling projects Gauff with a win probability of around 55% in this matchup.
Under 21.5 Total Games (–110)
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Many analysts anticipate a short, efficient match, given Gauff’s momentum and Osaka’s occasional inconsistency early on.
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With Gauff likely to control rallies and press from the baseline, a sub-22-game match is a logical outcome, aligning with match tempo expectations.
Naomi Osaka beat Coco Gauff 6-3 6-0 at the 2019 US Open, back when Coco was 15 and making her Ashe debut.
Coco was left in tears, and Naomi told her she did amazing, offering her to do the on-court interview alongside her.
Six years on, they meet again ❤️pic.twitter.com/UzaOXpcHFp
— Bastien Fachan (@BastienFachan) August 30, 2025
| Leg | Pick | Approx. Odds | Why It Works |
|---|---|---|---|
| 1 | Coco Gauff ML | –165 | Recent head-to-head edge and form advantage over Osaka. |
| 2 | Under 21.5 Total Games | –110 | Gauff’s momentum and Osaka’s inconsistency support a shorter match. |
| Same Game Parlay Odds | +180 | ||
Naomi Osaka and Coco Gauff will face each other in the U.S. Open Round of 16.
Coco leads the head to head 3-2.
The only time they played at the U.S. Open, Naomi won in 2019.
A battle of U.S. Open Champions.
Elite ball striking vs elite movement.
Who wins? 🇯🇵🇺🇸 pic.twitter.com/C1TWJkZXwP
— The Tennis Letter (@TheTennisLetter) August 30, 2025
This US Open Same Game Parlay strikes the sweet spot between reliability and value: Gauff ML leverages her head-to-head dominance and regained form, while Under 21.5 games aligns with expected tempo from a confident, aggressive champion.
Combined, they form a smart, correlated play, offering a tidy return while capturing the narrative arc of a high-stakes rematch. For bettors seeking structured value with emotional weight, this parlay offers both.
