# Carlos Alcaraz and Aryna Sabalenka won 2026 US Open titles

*Sports. 29% certain. Sunday, 13 September 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**Iga Swiatek defeated Qinwen Zheng and Alexander Blockx upset Francisco Cerundolo.**

Carlos Alcaraz captured the men's Singles title at the 2026 US Open. Aryna Sabalenka claimed the women's Singles crown. The tournament featured several upsets, including Iga Swiatek's win over Qinwen Zheng and Alexander Blockx's defeat of Francisco Cerundolo. An American man did not reach the men's final and Naomi Osaka failed to reach the women's quarter-finals.

Alcaraz secured the championship after a final that lacked any American contender. The result confirmed that no American man had advanced to the final round. His victory added to his growing résumé on the Grand Slam stage.

Sabalenka's triumph came despite Iga Swiatek's earlier success in the draw. Swiatek's win over Zheng was one of the tournament's highlighted matches. Sabalenka's title run concluded without a Canadian or American finalist.

The victory signaled the depth of competition among emerging players.

The 2026 US Open delivered unexpected champions and early exits for several top names. Fans witnessed a mix of established stars and breakthrough performers shaping the event.

## Analysis

Their titles will likely boost their ranking points and affect seedings for upcoming tournaments.

Without a home player reaching the championship match, American Tennis may face increased pressure to develop talent capable of competing at the highest level.

Blockx's defeat of Cerundolo and Swiatek's win over Zheng demonstrate the volatility within both draws, showing that lower-ranked or less-expected players can overturn established hierarchies. Osaka's failure to reach the quarter-finals adds to the narrative of unpredictability in the women's field, suggesting a broader competitive balance.

Overall, the tournament's mix of surprise champions and early exits suggests a season where performance margins are narrow and outcomes less certain. Players will need to adapt quickly, and future events may see shifting momentum as confidence from these results translates into subsequent matches.

## What this was built from

- **2026 Men’s US Open Winner (Tennis)**: Carlos Alcaraz, 56%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/2026-mens-us-open-winner-tennis)
- **2026 Women’s US Open Winner (Tennis)**: Aryna Sabalenka, 29%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/2026-womens-us-open-winner-tennis)
- **US Open WTA: Iga Swiatek vs Qinwen Zheng**: Iga Swiatek, 78%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/wta-swiatek-zhen-2026-09-06)
- **🎾 Will an American man reach the 2026 US Open men's singles final?**: No, 56%; settles Friday, 11 September 2026 (manifold). [Market](https://manifold.markets/MAKER/-will-an-american-man-reach-the-202)
- **US Open ATP: Francisco Cerundolo vs Alexander Blockx**: Alexander Blockx, 60%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/atp-cerundo-blockx-2026-09-06)
- **Will Naomi Osaka advance to the Quarterfinals in Women's Singles at the 2026 US Open?**: No, 56%; settles Wednesday, 9 September 2026 (polymarket). [Market](https://polymarket.com/event/us-open-2026-to-reach-quarterfinals-womens-singles-20260824175605000)