What is the current probability for "Kostyuk / Stearns vs Guo / Mladenovic"?

Current Kalshi odds for "Kostyuk / Stearns vs Guo / Mladenovic": Marta Kostyuk / Peyton Stearns 66%, Hanyu Guo / Kristina Mladenovic 36% (top 2 of 2 outcomes), refreshed continuously.

When does this market resolve?

This event resolves on 9/2/2026.

How is the probability calculated?

pdata reads the latest market prices directly from kalshi's public API and normalizes them to a 0-100 probability scale. See https://pdata.world/methodology for details on per-platform conventions.

Where can I get this data programmatically?

The JSON endpoint is https://api.pdata.world/api/v1/events/kalshi/KXWTADOUBLES-26AUG19KOSSTEGUOMLA. An MCP server with 9 tools is available at https://api.pdata.world/mcp. Full agent guide: https://pdata.world/agents.md.

opentrade on Kalshi

↗

event2 outcomes

Kostyuk / Stearns vs Guo / Mladenovic

·Sports·ends Sep 2, 2026

vol cum

$71.8k

vol 24h

$46.1k

outcomes

ends

Sep 2, 2026

outcomesclick to inspect →

marketselected outcome

Marta Kostyuk / Peyton Stearns

rank #1

66¢

▲ 2.0pp

24h change

vol cum

$39.6k

vol 24h

$29.3k

spread

0.01

ends

Sep 2, 2026

If Marta Kostyuk / Peyton Stearns wins the Kostyuk / Stearns vs Guo / Mladenovic professional tennis match in the 2026 WTA Cincinnati Round Of 16 after a ball has been played, then the market resolves to Yes.

timeline

opened · Aug 18, 2026opencloses · Sep 2, 2026

Marta Kostyuk / Peyton Stearns · prices over time

−24h

now

volume · by outcomehover a column to inspect

no volume history

similar markets

No similar markets for sports & price markets.