What is the current probability for "Costoulas vs Bai"?

Current Kalshi odds for "Costoulas vs Bai": Sofia Costoulas 71%, Zhuoxuan Bai 30% (top 2 of 2 outcomes), refreshed continuously.

When does this market resolve?

This event resolves on Sep 18, 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/KXITFWMATCH-26SEP03COSBAI. 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

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event2 outcomes

Costoulas vs Bai

·Sports·ends Sep 18, 2026

vol cum

$119.6k

vol 24h

$70.4k

outcomes

ends

Sep 18, 2026

outcomesclick to inspect →

marketselected outcome

Sofia Costoulas

rank #1

71¢

▲ 82.0pp

24h change

vol cum

$50.6k

vol 24h

$41.5k

spread

0.03

ends

Sep 18, 2026

If Sofia Costoulas wins the Costoulas vs Bai professional tennis match in the 2026 W75 Tianjin Quarterfinal after a ball has been played, then the market resolves to Yes.

timeline

opened · Sep 3, 2026opencloses · Sep 18, 2026

Sofia Costoulas · prices over time

−24h

now

volume · by outcomehover a column to inspect

no volume history

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No similar markets for sports & price markets.