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$2,014,438,903

422,382

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PLATFORM COVERAGE:

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Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele
polymarket

Who will win Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele?

Volume:
$25,510

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele

 - Polymarket

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 25, 2026

Closed: Oct 25, 3:34 PM EST

polymarket

Polymarket

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele

View
100%
Yes 100¢No 0¢
—
N/A
$25,510
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set 1 Winner

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set 2 Winner

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Total Sets: O/U 2.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set 1 O/U 8.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set 1 O/U 9.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set 1 O/U 10.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set 2 O/U 8.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set 2 O/U 9.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set 2 O/U 10.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Match O/U 21.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Match O/U 22.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Match O/U 23.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set Handicap +/-1.5

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

Sioux Falls: Daniil Ostapenkov vs Quinn Vandecasteele Set Handicap +/-1.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
No
Total markets: 16

Description

This market refers to the tennis match between Daniil Ostapenkov and Quinn Vandecasteele in the Sioux Falls, USA, Qualifying, originally scheduled for October 25, 2026 at 12:10PM ET. This market will resolve to 'Daniil Ostapenkov' if Daniil Ostapenkov advances against Quinn Vandecasteele. This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against Daniil Ostapenkov. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 8, 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 ATP Tour. A consensus of credible reporting may also be used.

Polymarket

This market refers to the tennis match between Daniil Ostapenkov and Quinn Vandecasteele in the Sioux Falls, USA, Qualifying, originally scheduled for October 25, 2026 at 12:10PM ET. This market will resolve to 'Daniil Ostapenkov' if Daniil Ostapenkov advances against Quinn Vandecasteele. This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against Daniil Ostapenkov. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 8, 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 ATP Tour. A consensus of credible reporting may also be used.

Frequently asked questions

On Polymarket, the dashboard for the Sioux Falls tennis match tracks the current odds reflecting the probability of each player winning, along with a price history showing how those odds have changed over time. You can also see the 24-hour trading volume, which indicates how much activity there has been in this market recently. Currently, the top outcome, as indicated by the odds, is for one player to win. The total volume traded on this market is $25,510, and the 24-hour volume is $25,510.

Typically, prediction market odds offer a different perspective than those found at traditional sportsbooks. Sportsbooks often incorporate a 'vig' or commission into their odds, representing their profit margin. This market, driven by the collective wisdom of traders on Polymarket, aims to reflect the true probability of an outcome, though discrepancies can occur due to differing information or risk assessments. It’s common to see prediction markets move more efficiently based on new information than sportsbook odds, as they aren't constrained by a fixed margin.

On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the likelihood of a specific outcome. The price of these shares directly reflects the implied probability. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, the price adjusts dynamically, providing a real-time assessment of the event’s potential results. The current implied probability of a particular player winning is reflected in the share price, and traders are constantly updating their positions based on their analysis.

This market resolves around Nov 1, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Sioux Falls tennis match, determining which player emerged victorious. The platform will rely on publicly available sources to verify the winner, ensuring a transparent and accurate settlement process. Traders will then be able to claim their winnings or adjust their strategies for future events.

Several factors could influence the odds in this market before resolution. Any news regarding player form, injuries, or changes in playing conditions could significantly shift trader sentiment. Unexpected upsets in other matches involving these players, or even broader trends in the tennis world, might also play a role. Furthermore, large trades on Polymarket by informed traders could cause noticeable price movements, reflecting their assessment of the evolving probabilities. Monitoring these signals will be key to understanding how this market evolves.