TOTAL VOLUME:

$134b

24H VOL:

$107,351,958

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,416,970,024

400,720

Markets across

30,097

events

MATCHED EVENTS:

2,633

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Cascino / Feng vs Costoulas / Gibson
kalshi

Cascino / Feng vs Costoulas / Gibson

Volume:
$87,495

Sofia Costoulas / Talia Gibson

 - Kalshi

Sofia Costoulas / Talia Gibson - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 23, 2026

Closed: Sep 23, 3:40 AM EST

kalshi

Kalshi

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

Sofia Costoulas / Talia Gibson

View
100%
35%
Yes 100¢No 0¢
100¢
N/A
$37,264
N/A
N/A
$18,349
Settled
Yes
kalshi

Estelle Cascino / Shuo Feng

View
0%
Yes 0¢No 100¢
100¢
N/A
$50,231
N/A
N/A
$27,734
Settled
No
Total markets: 2

Description

This market tracks the outcome of a professional tennis match between two pairs of players in a major tournament. The focus is on determining which pair will emerge victorious after the match begins. If the match does not start due to cancellations or injuries, the market adjusts fairly, and any postponements keep the market open until the rescheduled match concludes.

Kalshi

If Estelle Cascino / Shuo Feng wins the Cascino / Feng vs Costoulas / Gibson professional tennis match in the 2026 WTA Singapore Round Of 16 after a ball has been played, then the market resolves to Yes. If Sofia Costoulas / Talia Gibson wins the Cascino / Feng vs Costoulas / Gibson professional tennis match in the 2026 WTA Singapore Round Of 16 after a ball has been played, then the market resolves to Yes.