TOTAL VOLUME:

$134b

24H VOL:

$103,397,351

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,410,176,180

399,592

Markets across

30,097

events

MATCHED EVENTS:

2,622

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Madrid Open: Aryna Sabalenka vs Hailey Baptiste
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste

Volume:
$2,870,868

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Match O/U 21.5

 - Polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Match O/U 21.5 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Apr 28, 2026

Closed: May 5, 2:00 PM EST

polymarket

Polymarket

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

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Match O/U 21.5

View
100%
Yes 100¢No 0¢
—
N/A
$1,211
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Total Sets: O/U 2.5

100%
Yes 100¢No 0¢
—
N/A
$339
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Set 1 Winner

100%
Yes 100¢No 0¢
—
N/A
$108
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Match O/U 23.5

100%
Yes 100¢No 0¢
—
N/A
$72
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Match O/U 22.5

100%
Yes 100¢No 0¢
—
N/A
$70
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste

0%
Yes 0¢No 100¢
—
N/A
$2,862,269
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Set Handicap +/-1.5

0%
Yes 0¢No 100¢
—
N/A
$5,918
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Set 1 O/U 8.5

0%
Yes 0¢No 100¢
—
N/A
$659
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Set 1 O/U 9.5

0%
Yes 0¢No 100¢
—
N/A
$187
N/A
N/A
N/A
Settled
Yes
polymarket

Madrid Open: Aryna Sabalenka vs Hailey Baptiste Set 1 O/U 10.5

0%
Yes 0¢No 100¢
—
N/A
$35
N/A
N/A
N/A
Settled
Yes
Total markets: 10

Description

This market refers to the tennis match between Aryna Sabalenka and Hailey Baptiste in the Madrid Open, originally scheduled for April 28, 2026 at 2:00PM ET. This market will resolve to 'Aryna Sabalenka' if Aryna Sabalenka advances against Hailey Baptiste. This market will resolve to 'Hailey Baptiste' if Hailey Baptiste advances against Aryna Sabalenka. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 WTA Tour. A consensus of credible reporting may also be used.