PredictionBubbles
Polymarket · SportsOpen

Set Handicap: Gauff (-1.5) vs Rybakina (+1.5)

Gauff — market-implied probability

50.0%

Rybakina 50.0%

$821lifetime volume

$82124h volume

Gauff is trading at 50.0% on Polymarket. $821 traded over the market’s life, $821 of it in the last day. It resolves on 20 August 2026, 6 days from now.

By volume it is number 663 of the 691 open sports markets on the board, and $821 of that traded in the last day.

Trade this on Polymarket ↗

Current odds

Gauff50.0%
Rybakina50.0%

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

Price history

12 Aug32.0% – 65.5%13 Aug

Yes moved from 32.5% to 50.0% over the day charted — 17.5 points higher, ranging between 32.0% and 65.5% on the way.

Price history for Yes over the day charted
Window open32.5%
Latest sample50.0%
Change over window+17.5 points
Window high65.5%
Window low32.0%
Samples24, about hourly

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

$821Lifetime volume

traded over the market's life.

$82124h volume

traded in the last day.

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

Market timeline

opened

resolves

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

See other markets ending soon →

This market is new — see other new markets →

What does 50.0% mean?

The market is currently pricing the Gauff outcome at about 50.0%: a contract that pays $1 if the market resolves that way costs roughly 50.0% 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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