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

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VS.

Kalshi:

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Marta Kostyuk vs Sloane Stephens: Set 1 Winner
kalshi

Marta Kostyuk vs Sloane Stephens: Set 1 Winner

Volume:
$67,111

Marta Kostyuk

 - Kalshi

Marta Kostyuk - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 2, 2026

Closed: Sep 2, 2:24 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

View
100%
19%
Yes 100¢No 0¢
100¢
N/A
$43,751
N/A
N/A
$39,987
Settled
Yes
kalshi

Sloane Stephens

0%
18%
Yes 0¢No 100¢
100¢
N/A
$23,360
N/A
N/A
$22,543
Settled
No
Total markets: 2

Description

The same match features Kostyuk and Stephens battling again, this time with the focus on the first set. The result hinges on which player secures the win in that initial segment of their encounter.

Kalshi

If Marta Kostyuk wins set 1 in the Marta Kostyuk vs Sloane Stephens professional tennis match in the 2026 US Open Women Singles Round Of 64, then the market resolves to Yes. If Sloane Stephens wins set 1 in the Marta Kostyuk vs Sloane Stephens professional tennis match in the 2026 US Open Women Singles Round Of 64, then the market resolves to Yes.