What is the current probability for "National Bank Open: Shuai Zhang vs Jelena Ostapenko"?

Current Polymarket odds for "National Bank Open: Shuai Zhang vs Jelena Ostapenko": National Bank Open: Shuai Zhang vs Jelena Ostapenko Set Handicap +/-1.5 51%, Completed Match 50%, National Bank Open: Shuai Zhang vs Jelena Ostapenko Match O/U 21.5 50% (top 3 of 16 outcomes), refreshed continuously.

When does this market resolve?

This event resolves on 8/11/2026.

How is the probability calculated?

pdata reads the latest market prices directly from polymarket'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/polymarket/793240. An MCP server with 9 tools is available at https://api.pdata.world/mcp. Full agent guide: https://pdata.world/agents.md.

opentrade on Polymarket

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event16 outcomes

National Bank Open: Shuai Zhang vs Jelena Ostapenko

·Sports·ends Aug 11, 2026

vol cum

$12.9k

vol 24h

$12.9k

outcomes

ends

Aug 11, 2026

outcomesclick to inspect →

showing 5 of 16

TennisSportsGames

marketselected outcome

National Bank Open: Shuai Zhang vs Jelena Ostapenko Set Handicap +/-1.5

rank #1

51¢

▲ 0.5pp

24h change

vol cum

vol 24h

spread

0.95

ends

Aug 11, 2026

This market refers to the tennis match between Shuai Zhang and Jelena Ostapenko in the National Bank Open, originally scheduled for August 4, 2026 at 3:30PM ET. This market will resolve to "Zhang" if Shuai Zhang wins by 2 or more sets than Jelena Ostapenko, based on the final completed score. Otherwise, it will resolve to "Ostapenko." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50. Resolution will be based on official WTA results.

timeline

opened · Aug 3, 2026opencloses · Aug 11, 2026

National Bank Open: Shuai Zhang vs Jelena Ostapenko Set Handicap +/-1.5 · prices over time

−24h

now

volume · by outcomehover a column to inspect

no volume history

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