Cincinnati Open: Sara Bejlek vs Madison Keys

This market refers to the tennis match between Sara Bejlek and Madison Keys in the Cincinnati Open, originally scheduled for August 21, 2026 at 11:00AM ET. This market will resolve to 'Sara Bejlek' if Sara Bejlek advances against Madison Keys. This market will resolve to 'Madison Keys' if Madison Keys advances against Sara Bejlek. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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.

Volume

$1.9M

Liquidity

$783.8K

Spread

0.001

Closes

28 Aug 2026 UTC

Status

active

Resolution

https://www.wtatennis.com/scores

Updated

21 Aug 2026, 20:01 UTC

External ID

3735936

Outcomes

Label	Price	Bid	Ask	Spread
Sara Bejlek	100.0%	0.999	1.000	0.001
Madison Keys	0.1%	0.000	0.001	0.001

condition 0xdee37cc787bfe76e743a3f9f8d44e2b6d43a814fbdbac1adf397dd7742f5c70e

Paper trade

Simulation only. Buys fill at the ask, sells fill at the bid. No wallet.

Hosted paper writes are disabled.

bid 0.999 · ask 1.000

Price history

From M/ARC stored snapshots. Not a live Polymarket chart.

Sara Bejlek9 ptsMadison Keys9 pts

Market flow

No flow window yet. Run `npm run flow:ingest` then `npm run flow:aggregate`.

Notable actors

Public wallet identifiers only. History is not copied into a position.

No recent public actors on this market.

Evidence

Source quality: Thin
Identifiability: Weak
Coverage: 1 of 3 desired categories
Sources: 1
Freshness: 1.00
Missing: polling or campaign status

Source quality is provenance and freshness. Identifiability is whether those sources actually inform this event's outcome split. Coherence is checked separately against related markets.

Evidence timeline

E1 · PARALLAX market record · contextual · suit 0.25 · 2026-08-28Listed category · Market text describes the question; it does not identify the outcome.
E2 · PARALLAX market record · contextual · suit 0.25 · 2026-08-28Scheduled close · Market text describes the question; it does not identify the outcome.
E3 · PARALLAX market record · contextual · suit 0.25 · 2026-08-28Event context · Market text describes the question; it does not identify the outcome.
E4 · PARALLAX market record · contextual · suit 0.25 · 2026-08-28Market question · Market text describes the question; it does not identify the outcome.
E5 · PARALLAX market record · contextual · suit 0.25 · 2026-08-28Resolution criteria · Market text describes the question; it does not identify the outcome.
E6 · PARALLAX market record · contextual · suit 0.25 · 2026-08-28Resolution source · Market text describes the question; it does not identify the outcome.

Signals

No directional signals extracted.

M/ARC Analysis

No model prediction yet

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