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%
Closed: Sep 5, 11:32 AM EST
Polymarket
This market refers to the tennis match between Gustavo Heide and Facundo Mena in the Porto, originally scheduled for September 5, 2026 at 7:25AM ET. This market will resolve to 'Gustavo Heide' if Gustavo Heide advances against Facundo Mena. This market will resolve to 'Facundo Mena' if Facundo Mena advances against Gustavo Heide. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 19, 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Gustavo Heide and Facundo Mena in the Porto, originally scheduled for September 5, 2026 at 7:25AM ET. This market will resolve to 'Gustavo Heide' if Gustavo Heide advances against Facundo Mena. This market will resolve to 'Facundo Mena' if Facundo Mena advances against Gustavo Heide. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 19, 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds often reflect the wisdom of the crowd, and can differ from traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market allows anyone to express their belief about the outcome. If a significant number of traders believe a sportsbook is mispricing a player’s chances, the prediction market odds will adjust accordingly. It’s common to see discrepancies, especially early in the market, as information becomes available and opinions converge. Analyzing these differences can offer valuable insights.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the probability of that outcome occurring. As more traders participate, the price adjusts to reflect the collective assessment of the event. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market's price is driven by supply and demand; if more people believe Gustavo Heide will win, the price of shares representing his victory will increase, and vice versa for Facundo Mena.
This market resolves around Sep 12, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result will be based on the official result of the Porto tennis match between Gustavo Heide and Facundo Mena. The platform will rely on widely available and trusted sources to determine the winner. Traders who correctly predicted the outcome will be paid out according to the final market price of their shares at the time of resolution, while those who predicted incorrectly will forfeit their stake.
Several factors could influence the price of shares in this market before the match concludes. Any news regarding player injuries, changes in playing conditions (like weather), or updates on their recent performance could shift trader sentiment. Unexpected announcements about player strategies or coaching changes might also play a role. Furthermore, large trades by influential market participants could cause noticeable price movements. Monitoring these signals and staying informed about the players and the event itself is key to understanding potential shifts in this market.