PredictionBubbles
Polymarket · SportsOpen

Will Iga Swiatek win the 2026 Women’s US Open?

Yes — market-implied probability

3.5%▼ -10.5 points in 24h

No 96.5%

$131Klifetime volume

$35K24h volume

$28Kliquidity

Yes is trading at 3.5% on Polymarket, down 10.5 points in the last 24 hours. $131K traded over the market’s life, $35K of it in the last day. It resolves on 13 September 2026, 5 days from now.

By volume it is number 608 of the 688 open sports markets on the board, and $35K of that traded in the last day.

Trade this on Polymarket ↗

Current odds

Yes3.5%
No96.5%

Prices are the market’s implied probability: a contract at 62% costs 62 cents and pays $1 if it resolves true.

Price history

5 Jul8.0% – 16.5%21 Aug

Yes opened this window at 16.5% and stands at 16.5% — flat across the 47 days charted, ranging between 8.0% and 16.5% on the way.

Price history for Yes over the 47 days charted
Window open16.5%
Latest sample16.5%
Change over window0.0 points
Window high16.5%
Window low8.0%
Samples180, about every 6 hours

Read off the samples the line is drawn from. A price moved; PredictionBubbles reports the move and does not determine what caused it. Points, not percent. A change from 20% to 25% is five points.

Sampled for Yes. The live board draws every outcome and lets you switch the window.

Market activity

$131KLifetime volume

traded over the market's life.

$35K24h volume

traded in the last day.

$28KLiquidity

resting on the order book.

Where the venue does not publish a figure, it is left out rather than shown as zero.

Market timeline

opened

resolves

5 days remaining — recalculated on every 15-minute rebuild.

See other markets ending soon →

What does 3.5% mean?

The market is currently pricing the Yes outcome at about 3.5%: a contract that pays $1 if the market resolves that way costs roughly 3.5% of its payout to buy. That number is the market-implied probability, the aggregated judgment of traders with money at stake, not a forecast by PredictionBubbles.

When the price moves, the market has repriced the question. The 24-hour figure on this page is that move in probability points, not percent. Markets can be early, late or wrong; what keeps the number honest is that anyone who disagrees can trade against it.

Where this price comes from

Source
Polymarket
Type
on-chain, Polygon
Updated
every 15 minutes
Prices read

Polymarket is an on-chain venue settling in USDC on Polygon. The number above is the last traded price on this contract, pulled from the venue’s public API and refreshed every 15 minutes. This site takes no position and sets no price of its own.

To weigh it against the same question elsewhere, open the live board: it puts the busiest open Polymarket and Kalshi market side by side, sized by volume and colored by probability.

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The biggest sports markets on the board by traded volume, browsing rather than a claim that they bear on this question. All sports markets → · See this market on the live board → · Markets moving now →