TOTAL VOLUME:

$154.3b

24H VOL:

$219,029,434

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2,984,028,936

OPEN INTEREST:

$1,869,293,526

411,051

Markets across

40,408

events

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4,377

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

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Kayla Day vs Kimberly Birrell: Set 1 Winner
kalshi

Kayla Day vs Kimberly Birrell: Set 1 Winner

Volume:
$217

Kimberly Birrell

 - Kalshi

Kimberly Birrell - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 20, 2026

Closed: Oct 20, 12:59 PM 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

Kimberly Birrell

View
55%
Yes 55¢No 45¢
—
N/A
$129
N/A
N/A
$129
Settled
ResolvedResult not available
kalshi

Kayla Day

View
45%
Yes 45¢No 55¢
—
N/A
$88
N/A
N/A
$88
Settled
ResolvedResult not available
Total markets: 2

Description

This market centers on the first set of the same tennis match between Kayla Day and Kimberly Birrell in the 2026 WTA Osaka Round Of 32, determining the set's winner. The result hinges solely on performance in that initial segment of play.

Kalshi

If Kayla Day wins set 1 in the Kayla Day vs Kimberly Birrell professional tennis match in the 2026 WTA Osaka Round Of 32, then the market resolves to Yes. If Kimberly Birrell wins set 1 in the Kayla Day vs Kimberly Birrell professional tennis match in the 2026 WTA Osaka Round Of 32, then the market resolves to Yes.