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US Open WTA: Madison Keys vs Qinwen Zheng

Polymarket price0.54Qinwen Zhenglast trade · 2h agoFrom Convexly's own collectors; not a quote.
No live quoteOdds via Polymarket public API. Not advice.

Part of event: US Open WTA: Madison Keys vs Qinwen Zheng · wta-keys-zhen-2026-09-04

Market structure and 24h change as reported by Polymarket's public API.

Top of book

Best ask

0.001

Spread

0.001

As reported by Polymarket's public API at 19:35 UTC; top of book, not full depth; per-side depth not shown. The spread is shown against the midpoint of the two quotes above, which is arithmetic on the venue's figures, not a figure the venue reports.

Volume

24h volume

$975,004

Total volume

$976,421

Volume as reported by Polymarket's public API.

Resolution rules

Rules as stated by Polymarket, reproduced verbatim. Convexly has not independently reviewed them and does not endorse them; the rating's resolution-reliability pillar treats rule text as present but not independently reviewed.

This market refers to the tennis match between Madison Keys and Qinwen Zheng in the US Open WTA, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Madison Keys' if Madison Keys advances against Qinwen Zheng. This market will resolve to 'Qinwen Zheng' if Qinwen Zheng advances against Madison Keys. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.Show the full rules text

This market refers to the tennis match between Madison Keys and Qinwen Zheng in the US Open WTA, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Madison Keys' if Madison Keys advances against Qinwen Zheng. This market will resolve to 'Qinwen Zheng' if Qinwen Zheng advances against Madison Keys. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.

Resolution mechanics

Resolution parameters as stated by Polymarket.

Automatic resolution: Polymarket states this market resolves through its sports-oracle auto-resolution path rather than through the UMA proposer flow.

Structural coherence read

The Coherent Markets Engine checks this market's pricing for structural inconsistencies against related markets. Whether a current signal exists, and its construction, is included with Researcher.

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Market opened 2026-09-03 · minimum order size 5 shares · price tick size 0.001 · as stated by Polymarket.