TOTAL VOLUME:

$116.7b

24H VOL:

$107,266,600

24H TRANSACTIONS:

1,362,287,844

OPEN INTEREST:

$1,176,258,675

332,550

Markets across

33,140

events

MATCHED EVENTS:

4,150

PLATFORM COVERAGE:

5

Polymarket:

42%

VS.

Kalshi:

58%

Monterrey Open: Panna Udvardy vs Elise Mertens

Monterrey Open: Panna Udvardy vs Elise Mertens

Total volume:
$56,873
Volume 24h:
$0N/A
Liquidity:
$382,662
1%
Open interest:
$488
0%

Monterrey Open: Panna Udvardy vs Elise Mertens Game Spread +/-4.5

 - Polymarket

Monterrey Open: Panna Udvardy vs Elise Mertens Game Spread +/-4.5 - Polymarket

100%

+0%

1W

News

Positive

Negative

Neutral

Hover marker for details

No volume data

Aug 26

Aug 26

Aug 26

Aug 26

Aug 26

Aug 26

Vol.

$0.0

·

Resolves Sep 19, 2026

Time left: 06d:23h:56m

Game Spread: Mertens (-4.5) vs Udvardy (+4.5)

100%chance
Amount

$

You will be redirected to the platform to complete this trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
MUI X License key version mismatch
Total markets: 25 of 32

Description

This event group covers the tennis match between Panna Udvardy and Elise Mertens at the Monterrey Open scheduled for August 26, 2026. The markets resolve based on the outcome of this specific match and whether it is completed under normal play conditions.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All platforms agree that the match must be completed through normal play for definitive resolution, with official WTA Tour sources as the primary referencePrimary resolution logic: Official WTA Tour

Core resolution logic:

  • The market resolves based on whether Panna Udvardy or Elise Mertens advances from their match
  • If the match is not completed (canceled, tied, or unresolved by September 9, 2026), most markets resolve to 50-50 or No
  • A retirement, default, disqualification, or walkover leads to resolution for the advancing player or 50-50 depending on the market

Edge cases & clarifications:

  • Retirement During Match: Resolves to the player who advances due to the opponent's retirement
  • Walkover: Resolves to 50-50 for certain markets
  • Match Not Played: Resolves to 50-50 or No depending on the specific market
Timing: Resolution occurs by September 9, 2026, 11:59 PM ETOur 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.
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Polymarket

This market refers to the tennis match between Panna Udvardy and Elise Mertens in the Monterrey Open, originally scheduled for August 26, 2026 at 6:30PM ET. This market will resolve to 'Panna Udvardy' if Panna Udvardy advances against Elise Mertens. This market will resolve to 'Elise Mertens' if Elise Mertens advances against Panna Udvardy. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 9, 2026, 11:59 PM ET (14 days after the scheduled start), 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.

Kalshi

The market resolves to Yes for the specific participant who wins the 2026 WTA Monterrey professional tennis tournament as outlined in each respective rule. If any participant listed forfeits, withdraws, or takes any official action that removes them from being able to win the tournament, the market for that participant will resolve No. The markets are independent for each participant, and the governing body's official determination of the tournament results will be the basis for resolution. Kalshi disclaims any affiliation with the governing league, and all trademarks remain the property of their respective owners.

Frequently asked questions

On Polymarket, the Monterrey Open semifinal match dashboard aggregates real-time data from multiple venues, showing how traders price the chances of each player winning. This view combines volume of $0 and 24-hour volume of $0 to reflect overall market sentiment. The dashboard updates continuously, letting users see where consensus lies across platforms and compare that to traditional sportsbook lines. Because this market spans several prediction markets, the dashboard offers a unified snapshot of trader expectations for the upcoming match.

This market resolves around Sep 19, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is determined by the official match conclusion, and the platform will update the market accordingly based on confirmed data from authoritative sports feeds.

Injuries, weather updates, or last-minute player withdrawals could shift this market dramatically before Sep 19, 2026. Key moments include practice session reports, head-to-head statistics released close to the match, and any media comments from the players or coaches. Each of these signals may cause rapid adjustments in trader sentiment and, therefore, in the odds shown on Polymarket and Kalshi as the event approaches its conclusion.