Resolution criteria

Each of the listed players resolves YES if that player appears as one of the four semifinalists in the 2026 U.S. Open Women's Singles main draw; players resolve NO otherwise. Verification: the official U.S. Open women's singles draw/results page or PDF and/or the WTA tournament page. Links:

• https://www.usopen.org/index.html

• https://www.wtatennis.com/tournaments/905/us-open

"Other (Any Player Not Listed Above)" resolves YES if at least one of the four semifinalists is not among the named answers; resolves NO if all four semifinalists are from the listed options. For clarity's sake, those listed players are:

• 🇧🇾 A. Sabalenka

• 🇺🇸 C. Gauff

• 🇺🇸 J. Pegula

• 🇰🇿 E. Rybakina

• 🇵🇱 I. Swiatek

• 🇺🇦 E. Svitolina

• 🇷🇺 M. Andreeva

• 🇺🇦 M. Kostyuk

• 🇨🇿 K. Muchova

• 🇵🇭 A. Eala

• 🇷🇴 S. Cirstea

• 🇨🇿 L. Noskova

• 🇺🇸 A. Anisimova

• 🇯🇵 N. Osaka

• 🇺🇸 M. Keys

• 🇷🇺 D. Shnaider

Edge cases: for any players that do not appear in the main draw (withdrawing prior to the tournament for any reason), those players will resolve N/A. If a player plays at least one point in a main draw match, however, and THEN has to retire due to injury before the semifinals, that player will resolve NO. If a player retires during the semifinal matches, that makes no difference to this market. As market creator, I reserve the right to N/A if there is some sort of unforeseen extraordinary circumstance.

Background

Event dates: August 30 – September 13, 2026. Women's semifinals are scheduled for Thu, Sep 10.

Considerations

Only the Women's Singles main draw counts for the purpose of this market (not doubles, mixed, or juniors).