What is the current probability for "Swiss Open: Stefanos Tsitsipas vs Ignacio Buse"?

Current Polymarket odds for "Swiss Open: Stefanos Tsitsipas vs Ignacio Buse": Swiss Open: Stefanos Tsitsipas vs Ignacio Buse Match O/U 21.5 70%, Swiss Open: Stefanos Tsitsipas vs Ignacio Buse Total Sets: O/U 2.5 69%, Swiss Open: Stefanos Tsitsipas vs Ignacio Buse Match O/U 22.5 69% (top 3 of 15 outcomes), refreshed continuously.

When does this market resolve?

This event resolves on 7/20/2026.

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/692897. 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 Ignacio Buse

·Sports·ends Jul 20, 2026

vol cum

$15k

vol 24h

$15k

outcomes

ends

Jul 20, 2026

outcomesclick to inspect →

showing 5 of 15

TennisSportsGames

marketselected outcome

Swiss Open: Stefanos Tsitsipas vs Ignacio Buse Match O/U 21.5

rank #1

70¢

▲ 19.0pp

24h change

vol cum

vol 24h

spread

0.57

ends

Jul 20, 2026

This market refers to the tennis match between Stefanos Tsitsipas and Ignacio Buse in the Swiss Open, originally scheduled for July 13, 2026 at 4:00AM ET. This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total. 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 ATP statistics.

timeline

opened · Jul 11, 2026opencloses · Jul 20, 2026

Swiss Open: Stefanos Tsitsipas vs Ignacio Buse Match O/U 21.5 · prices over time

−24h

now

volume · by outcomehover a column to inspect

no volume history

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