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$277,138,640

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412,077

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MATCHED EVENTS:

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PLATFORM COVERAGE:

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Japan Women's Open: Katerina Siniakova vs Peyton Stearns
polymarket

What is the result of Katerina Siniakova vs Peyton Stearns?

Volume:
$282,294

Japan Women's Open: Katerina Siniakova vs Peyton Stearns

 - Polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 20, 2026

Closed: Oct 20, 6:37 AM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns

View
100%
45%
Yes 100¢No 0¢
—
N/A
$279,429
N/A
N/A
N/A
Settled
Yes
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 21.5

100%
Yes 100¢No 0¢
—
N/A
$847
N/A
N/A
N/A
Settled
Yes
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Total Sets: O/U 2.5

100%
61%
Yes 100¢No 0¢
—
N/A
$338
N/A
N/A
N/A
Settled
Yes
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 Winner

100%
Yes 100¢No 0¢
—
N/A
$99
N/A
N/A
N/A
Settled
Yes
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Game Spread +/-1.5

50%
Yes 50¢No 50¢
—
N/A
$99
N/A
N/A
N/A
Settled
ResolvedResult not available
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 23.5

50%
9%
Yes 50¢No 50¢
—
N/A
$5
N/A
N/A
N/A
Settled
ResolvedResult not available
polymarket

Completed Match

0%
Yes 0¢No 100¢
—
N/A
$1,192
N/A
N/A
N/A
Settled
No
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 Winner

0%
53%
Yes 0¢No 100¢
—
N/A
$244
N/A
N/A
N/A
Settled
No
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 10.5

0%
24%
Yes 0¢No 100¢
—
N/A
$40
N/A
N/A
N/A
Settled
No
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set Handicap +/-1.5

0%
35%
Yes 0¢No 100¢
—
N/A
$2
N/A
N/A
N/A
Settled
No
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 8.5

100%
30%
Yes 100¢No 0¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 9.5

100%
1%
Yes 100¢No 0¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 8.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 9.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 10.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 22.5

50%
6%
Yes 50¢No 50¢
—
N/A
N/A
N/A
N/A
N/A
Settled
ResolvedResult not available
Total markets: 16

Description

This market refers to the tennis match between Katerina Siniakova and Peyton Stearns in the Japan Women's Open, originally scheduled for October 18, 2026 at 9:00PM ET. This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Peyton Stearns. This market will resolve to 'Peyton Stearns' if Peyton Stearns advances against Katerina Siniakova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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.

Polymarket

This market refers to the tennis match between Katerina Siniakova and Peyton Stearns in the Japan Women's Open, originally scheduled for October 18, 2026 at 9:00PM ET. This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Peyton Stearns. This market will resolve to 'Peyton Stearns' if Peyton Stearns advances against Katerina Siniakova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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.

Frequently asked questions

On Polymarket, the dashboard for the Siniakova vs Stearns match tracks the implied probability of each outcome, the current price, and 24-hour trading volume. Currently, the total volume for this market is $282,294, with $281,910 traded in the last 24 hours. The dashboard also displays a price history chart, allowing users to see how the market has moved over time. This provides a clear visualization of market sentiment and trading activity surrounding this tennis match. You can see how traders are assessing the likelihood of each player winning.

Often, prediction market odds reflect a different perspective than those found at traditional sportsbooks. Sportsbooks often incorporate a 'vig' or commission into their odds, while Polymarket allows traders to directly assess probabilities. This can lead to discrepancies, with this market potentially offering different implied probabilities than those available from conventional betting operators. It’s common to see prediction markets outperform sportsbooks in accuracy, as they aggregate the wisdom of the crowd and are incentivized to reflect true beliefs about the outcome. However, it is important to note that both sources offer unique insights.

This market resolves around Oct 26, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Siniakova vs Stearns match as reported by a recognized tennis authority. The platform will verify the result against these sources to determine the winning outcome. Traders who correctly predicted the result will be paid out according to the final market prices at the time of resolution. This ensures a transparent and objective determination of the market's outcome.

Several factors could influence the price movement of this market. Any news regarding player injuries, changes in playing conditions, or updated match analyses from tennis experts could shift trader sentiment. Unexpected performance in earlier rounds of the Japan Women's Open for either player could also have a significant impact. Furthermore, major shifts in public opinion or late-breaking betting trends observed elsewhere could influence trading activity on Polymarket. These signals will be reflected in the volume and price of shares traded, providing insights into evolving expectations for the Siniakova vs Stearns match.