What is the current probability for "Swiss Open: Stefanos Tsitsipas vs Raphael Collignon"?

Current Polymarket odds for "Swiss Open: Stefanos Tsitsipas vs Raphael Collignon": Swiss Open: Stefanos Tsitsipas vs Raphael Collignon Set 1 O/U 8.5 90%, Swiss Open: Stefanos Tsitsipas vs Raphael Collignon Match O/U 21.5 72%, Swiss Open: Stefanos Tsitsipas vs Raphael Collignon Set 1 O/U 9.5 72% (top 3 of 15 outcomes), refreshed continuously.

When does this market resolve?

This event resolves on 7/26/2026.

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/717854. An MCP server with 9 tools is available at https://api.pdata.world/mcp. Full agent guide: https://pdata.world/agents.md.

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event15 outcomes

Swiss Open: Stefanos Tsitsipas vs Raphael Collignon

·Sports·ends Jul 26, 2026

vol cum

$52.2k

vol 24h

$52.2k

outcomes

ends

Jul 26, 2026

outcomesclick to inspect →

showing 5 of 15

TennisSportsGames

marketselected outcome

Swiss Open: Stefanos Tsitsipas vs Raphael Collignon Set 1 O/U 8.5

rank #1

90¢

▲ 38.5pp

24h change

vol cum

$223

vol 24h

$223

spread

0.01

ends

Jul 26, 2026

This market refers to the tennis match between Stefanos Tsitsipas and Raphael Collignon in the Swiss Open, originally scheduled for July 19, 2026 at 5:30AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50. Resolution will be based on official ATP results.

timeline

opened · Jul 18, 2026opencloses · Jul 26, 2026

Swiss Open: Stefanos Tsitsipas vs Raphael Collignon Set 1 O/U 8.5 · prices over time

−24h

now

volume · by outcomehover a column to inspect

no volume history

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