What is the current probability for "Winston-Salem Open: Jenson Brooksby vs Stefanos Tsitsipas"?

Current Polymarket odds for "Winston-Salem Open: Jenson Brooksby vs Stefanos Tsitsipas": Winston-Salem Open: Jenson Brooksby vs Stefanos Tsitsipas Set 1 O/U 8.5 66%, Winston-Salem Open: Jenson Brooksby vs Stefanos Tsitsipas Match O/U 21.5 56%, Winston-Salem Open: Jenson Brooksby vs Stefanos Tsitsipas Set 1 O/U 9.5 53% (top 3 of 17 outcomes), refreshed continuously.

When does this market resolve?

This event resolves on 8/31/2026.

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/898547. 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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event17 outcomes

Winston-Salem Open: Jenson Brooksby vs Stefanos Tsitsipas

·Sports·ends Aug 31, 2026

vol cum

$10k

vol 24h

$10k

outcomes

ends

Aug 31, 2026

outcomesclick to inspect →

showing 5 of 17

TennisSportsGames

marketselected outcome

Winston-Salem Open: Jenson Brooksby vs Stefanos Tsitsipas Set 1 O/U 8.5

rank #1

66¢

▲ 16.5pp

24h change

vol cum

vol 24h

spread

0.32

ends

Aug 31, 2026

This market refers to the tennis match between Jenson Brooksby and Stefanos Tsitsipas in the Winston-Salem Open, originally scheduled for August 24, 2026 at 6:30PM 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 play has not begun by September 7, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official ATP results.

timeline

opened · Aug 23, 2026opencloses · Aug 31, 2026

Winston-Salem Open: Jenson Brooksby vs Stefanos Tsitsipas Set 1 O/U 8.5 · prices over time

−24h

now

volume · by outcomehover a column to inspect

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