TOTAL VOLUME:

$134.2b

24H VOL:

$126,324,530

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,434,646,834

406,019

Markets across

30,401

events

MATCHED EVENTS:

2,689

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard
polymarket
kalshi

Who will win Helioevaara/Patten vs Andreozzi/Guinard?

Volume:
$101,923

Harri Heliovaara / Henry Patten

all

2 markets

Kalshi

Polymarket

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 7, 2026

Closed: Jul 7, 12:04 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

Harri Heliovaara / Henry Patten

View
100%
Yes 100¢No 0¢
100¢
N/A
$63,958
N/A
N/A
$26,290
Settled
Yes
polymarket

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5,168
N/A
N/A
N/A
Settled
Yes
kalshi

Guido Andreozzi / Manuel Guinard

View
0%
Yes 0¢No 100¢
100¢
N/A
$32,550
N/A
N/A
$18,193
Settled
No
polymarket

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set Handicap +/-1.5

View
0%
Yes 0¢No 100¢
—
N/A
$248
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set 2 O/U 8.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set 1 O/U 8.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set 2 Winner

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set 1 Winner

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Match O/U 21.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Total Sets: O/U 2.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set 1 O/U 9.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set 2 O/U 9.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Match O/U 22.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set 1 O/U 10.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set 2 O/U 10.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Match O/U 23.5

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

Wimbledon ATP (Doubles): Helioevaara/Patten vs Andreozzi/Guinard Set Handicap +/-1.5

View
0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 18

Description

This event group covers a Wimbledon ATP Men's Doubles Quarterfinal match scheduled for July 7, 2026 between the team of Harri Heliovaara and Henry Patten against Guido Andreozzi and Manuel Guinard. The markets track both the match outcome (which team advances) and whether the match is completed through normal play.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi's outcome logic (Yes if either team wins after ball-in-play) does not align with Polymarket's dual-market approach (advancement vs. completion), and the three markets handle walkovers, retirements, delays, and cancellations inconsistently.Hero tip: Identify which of the three markets you hold: Kalshi outcome, Polymarket advancement, or Polymarket completion. Each has different edge-case resolutions. Retirement or default scenarios will produce different payouts across platforms. Monitor official ATP Tour sources and confirm match status within 2 hours of conclusion.

Critical divergence points:

  • Kalshi: Binary outcome market: resolves Yes if Helioevaara/Patten wins OR if Andreozzi/Guinard wins, provided a ball has been played. No explicit rules for walkovers, retirements, cancellations, or delays. Key Quote: 'after a ball has been played, then the market resolves to Yes.'
  • Polymarket (Advancement): Resolves to the advancing team if match begins and one team advances via retirement, default, or disqualification. Walkovers, cancellations, ties, and delays beyond 7 days resolve 50-50. Key Quote: 'If the match begins but is not completed, and one team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances.'
  • Polymarket (Completion): Resolves Yes only if all games and sets are played to completion through normal play. Any forfeit (including walkover or retirement), cancellation, tie, or delay beyond 7 days resolves No. Key Quote: 'If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve to No.'
Our 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 doubles tennis match between Helioevaara/Patten and Andreozzi/Guinard in the Wimbledon ATP, originally scheduled for July 7, 2026 at 6:00AM ET. This market will resolve to 'Helioevaara/Patten' if the team of Helioevaara/Patten advances against Andreozzi/Guinard. This market will resolve to 'Andreozzi/Guinard' if the team of Andreozzi/Guinard advances against Helioevaara/Patten. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 ATP Tour. A consensus of credible reporting may also be used.

Kalshi

The market resolves based on the result of the Heliovaara / Patten vs Andreozzi / Guinard professional tennis match in the 2026 Wimbledon Men Doubles Quarterfinal, contingent upon a ball being played. If the match does not commence due to player injury, walkover, forfeiture, or other cancellation before play begins, the market will resolve to a fair price per standard rules. Should the match be postponed or delayed, the market remains open and will close following the rescheduled match completion within two weeks.

Frequently asked questions

Prediction markets like those tracked here operate on crowd-sourced probability rather than bookmaker margins. Traders stake capital directly on outcomes, creating incentives for accurate pricing without the vig typical of traditional sportsbooks. This market's odds reflect aggregate belief among participants willing to back their conviction with real money. Sportsbooks, by contrast, balance action and manage risk through adjusted lines. Comparing this market's implied probability to major sportsbook spreads or moneylines can reveal where public and professional opinion diverge, often signaling value or consensus shifts.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform operates under distinct regulatory frameworks, user bases, and liquidity profiles. Polymarket and Kalshi may attract different trader demographics with varying information access or risk appetites. Timing lags in order-book updates, differences in market depth, and platform-specific fee structures can all create temporary price gaps. Additionally, each venue's rules for dispute resolution and outcome verification may influence how traders price tail risks, causing the two markets to converge and diverge as new evidence surfaces or liquidity shifts between platforms.

Player injury reports, recent tournament performance, and head-to-head records will shape trader conviction leading up to the match. Draws, seeding announcements, and any roster changes or partner substitutions can trigger sharp repricing. Media coverage highlighting form trends or court-surface advantages may also shift sentiment. Weather forecasts closer to the event date could influence expectations around playing conditions. Finally, movement on related markets—such as singles outcomes or other doubles pairings—may provide correlated signals that traders use to adjust their positions on this specific matchup.