Skip to main content
Cash
Portfolio
TrendingMidtermsElectionsPoliticsSportsCultureCryptoCommoditiesClimateEconomicsMentionsFinanceTech & Science
PredictLive177AccountSocial
MARKETSINVESTLIVE177
Product
Kalshi ProInvestMarketsIncentive programSmall business hedgingInstitutionsAPI & developers
Company
AboutKalshi ResearchBlogCareersPolicy CenterBrand Kit
Help
Help CenterFAQPrediction marketsFee scheduleTrading hoursRegulatoryTrust Center
© 2026 Kalshi Inc. · All rights reserved
PrivacyData Terms of ServiceTrading ProhibitionsFAQ for Finance Professionals
Trading on Kalshi involves risk and may not be appropriate for all. Members risk losing their cost to enter any transaction, including fees. You should carefully consider whether trading on Kalshi is appropriate for you in light of your investment experience and financial resources. Any trading decisions you make are solely your responsibility and at your own risk. Information is provided for convenience only on an "AS IS" basis. Past performance is not necessarily indicative of future results. Kalshi is subject to U.S. regulatory oversight by the CFTC.
Series Image

WTA Cincinnati Kostyuk / Stearns vs Guo / Mladenovic

2
Marta Kostyuk / Peyton Stearns
No

Marta Kostyuk / Peyton Stearns

No
Hanyu Guo / Kristina Mladenovic
Yes

Hanyu Guo / Kristina Mladenovic

Yes

Marta Kostyuk / Peyton Stearns vs. Hanyu Guo / Kristina Mladenovic Odds

Final: Hanyu Guo / Kristina Mladenovic beat Marta Kostyuk / Peyton Stearns 2 sets to 1. Kalshi had Hanyu Guo / Kristina Mladenovic at 47% to win before the match — an upset by the market’s price.

Illustration of gavel
Determined
Outcome: Yes
Explore Sports
More Sports Markets

More WTA Doubles Tennis Match markets

Siniakova / Townsend vs Bucsa / Melichar-MartinezPerez / Schuurs vs Errani / Paolini

Trending Sports markets

Austin Championship presented by Compliance Solutions WinnerItaly vs FranceDP World Tour Championship WinnerMusetti vs HumbertRoncadelli vs ComesanaKrishna vs ShimanovAustin Championship presented by Compliance Solutions End of Round 1 LeaderWAS Commanders vs NY Giants

Sports hub

All Sports markets