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$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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National Bank Open: Kayla Day vs Coco Gauff
polymarket
limitless

National Bank Open: Kayla Day vs Coco Gauff

Volume:
$110,709

National Bank Open: Kayla Day vs Coco Gauff Set Handicap +/-1.5

 - Polymarket

National Bank Open: Kayla Day vs Coco Gauff Set Handicap +/-1.5 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 5, 2026

Closed: Aug 5, 5:49 PM EST

polymarket

Polymarket

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

National Bank Open: Kayla Day vs Coco Gauff Set Handicap +/-1.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$426
N/A
N/A
N/A
Settled
Yes
polymarket

National Bank Open: Kayla Day vs Coco Gauff

0%
Yes 0¢No 100¢
—
N/A
$108,836
N/A
N/A
N/A
Settled
Yes
limitless

Kayla Day vs Cori Gauff

N/A
N/A
99.8¢
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

National Bank Open: Kayla Day vs Coco Gauff Set 2 Winner

0%
Yes 0¢No 100¢
—
N/A
$1,395
N/A
N/A
N/A
Settled
Yes
polymarket

National Bank Open: Kayla Day vs Coco Gauff Total Sets: O/U 2.5

0%
Yes 0¢No 100¢
—
N/A
$45
N/A
N/A
N/A
Settled
Yes
polymarket

National Bank Open: Kayla Day vs Coco Gauff Set 1 Winner

0%
Yes 0¢No 100¢
—
N/A
$6
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

National Bank Open: Kayla Day vs Coco Gauff Set 1 O/U 8.5

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

National Bank Open: Kayla Day vs Coco Gauff Set 2 O/U 8.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

National Bank Open: Kayla Day vs Coco Gauff Match O/U 21.5

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

National Bank Open: Kayla Day vs Coco Gauff Set 2 O/U 9.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

National Bank Open: Kayla Day vs Coco Gauff Set 1 O/U 9.5

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

National Bank Open: Kayla Day vs Coco Gauff Match O/U 22.5

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

National Bank Open: Kayla Day vs Coco Gauff Set 2 O/U 10.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

National Bank Open: Kayla Day vs Coco Gauff Set 1 O/U 10.5

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

National Bank Open: Kayla Day vs Coco Gauff Match O/U 23.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 16

Description

This event group covers the tennis match between Kayla Day and Coco Gauff at the National Bank Open, originally scheduled for August 6, 2026 at 10:00AM ET. The markets will resolve based on who advances from the match, with specific rules for cancellations, retirements, walkovers, and incomplete matches.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

Both platforms share identical resolution logic for determining the winner and handling edge cases like cancellations, retirements, and walkovers.Primary resolution logic: Official information from the WTA Tour, with credible reporting as a secondary source if needed

Core resolution logic:

  • Resolve to the advancing player if the match concludes normally or via retirement/default/disqualification
  • Resolve to 50-50 for cancellations, ties, delays beyond 7 days, or walkovers
  • Completed Match market resolves to "Yes" only if all games/sets are played to completion without any forfeit or retirement

Edge cases & clarifications:

  • Retirement/Default/Disqualification: Resolves to the player who advances due to the opponent's retirement, default, or disqualification
  • Walkover: Resolves to 50-50 if one player withdraws before the match starts
  • Match Not Completed: Resolves to 50-50 if the match begins but is not completed, or to "No" in the Completed Match market
Timing: Resolution will occur after the official WTA Tour announcement or credible reporting confirms the match outcome, with the Completed Match market resolving based on official statistics or credible reporting if statistics are not published within 2 hours of the event's conclusionOur PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

This market refers to the tennis match between Kayla Day and Coco Gauff in the National Bank Open, originally scheduled for August 6, 2026 at 10:00AM ET. This market will resolve to 'Kayla Day' if Kayla Day advances against Coco Gauff. This market will resolve to 'Coco Gauff' if Coco Gauff advances against Kayla Day. 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.

Limitless

This market refers to the tennis match between Kayla Day and Cori Gauff in the WTA Canadian Open, originally scheduled for August 5, 2026 at 13:00 UTC. This market will resolve to 'Kayla Day' if Kayla Day advances against Cori Gauff. This market will resolve to 'Cori Gauff' if Cori Gauff advances against Kayla Day. 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.

Frequently asked questions

The dashboard for the National Bank Open match-up market aggregates predictions across multiple venues, showing real-time consensus and volume. It displays how traders on different platforms price the likelihood of various outcomes, with total volume at $110,709 and 24-hour volume at $110,558. This centralized view helps users spot trends and compare expectations for the match as they unfold.