TOTAL VOLUME:

$134.2b

24H VOL:

$126,324,530

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,434,646,834

406,019

Markets across

30,401

events

MATCHED EVENTS:

2,689

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Marta Kostyuk vs Sloane Stephens: Exact Match Score
kalshi

Marta Kostyuk vs Sloane Stephens: Exact Match Score

Volume:
$30,405

Marta Kostyuk wins 2-0

 - Kalshi

Marta Kostyuk wins 2-0 - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 2, 2026

Closed: Sep 2, 3:13 PM EST

kalshi

Kalshi

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Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Marta Kostyuk wins 2-0

View
100%
Yes 100¢No 0¢
100¢
N/A
$14,974
N/A
N/A
$8,601
Settled
Yes
kalshi

Sloane Stephens wins 2-0

0%
Yes 0¢No 100¢
100¢
N/A
$13,171
N/A
N/A
$11,501
Settled
No
kalshi

Sloane Stephens wins 2-1

0%
Yes 0¢No 100¢
100¢
N/A
$1,292
N/A
N/A
$1,291
Settled
No
kalshi

Marta Kostyuk wins 2-1

0%
Yes 0¢No 100¢
100¢
N/A
$968
N/A
N/A
$854
Settled
No
Total markets: 4

Description

This event tracks the specific outcome of a tennis match between Marta Kostyuk and Sloane Stephens at the 2026 US Open Women Singles Round Of 64, focusing on the exact set scores that determine the winner. Bettors can speculate on whether the match will conclude with either player winning by particular set margins. The event accounts for various match disruptions, ensuring fair resolution even if the contest is altered or canceled.

Kalshi

The event resolves based on the exact set score of the Marta Kostyuk vs Sloane Stephens match in the 2026 US Open Women Singles Round Of 64. Four possible outcomes are considered: Marta Kostyuk winning 2-0, Marta Kostyuk winning 2-1, Sloane Stephens winning 2-1, or Sloane Stephens winning 2-0. If the match does not occur before any play due to injury, walkover, forfeiture, or cancellation, all markets resolve to a fair price. Postponements or delays keep markets open until the rescheduled match concludes, with resolution within two weeks. If a player retires during the match, markets that can be settled based on completed play resolve accordingly, while unresolved markets settle at a fair market price determined by the Exchange. The Exchange disclaims any official affiliation with the governing league, and all trademarks remain property of their respective owners.