TOTAL VOLUME:
$154.4b
24H VOL:
$230,589,906
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,885,293,300
410,482
Markets across
40,213
events
MATCHED EVENTS:
4,340
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 18, 7:47 PM EST
Polymarket
This market refers to the tennis match between Julio Cesar Porras and Ektoras Tsatsakis in the M15 Heraklion, Qualifying, originally scheduled for October 18, 2026 at 4:30AM ET. This market will resolve to 'Julio Cesar Porras' if Julio Cesar Porras advances against Ektoras Tsatsakis. This market will resolve to 'Ektoras Tsatsakis' if Ektoras Tsatsakis advances against Julio Cesar Porras. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Julio Cesar Porras and Ektoras Tsatsakis in the M15 Heraklion, Qualifying, originally scheduled for October 18, 2026 at 4:30AM ET. This market will resolve to 'Julio Cesar Porras' if Julio Cesar Porras advances against Ektoras Tsatsakis. This market will resolve to 'Ektoras Tsatsakis' if Ektoras Tsatsakis advances against Julio Cesar Porras. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
On Polymarket, this market is priced through a continuous trading mechanism where users buy and sell shares representing their belief in the outcome. The price of these shares directly reflects the probability of that outcome occurring, as determined by supply and demand. As more traders buy shares in a particular outcome, its price increases, indicating a higher perceived probability. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is driven entirely by traders’ expectations and is not influenced by external factors or predetermined formulas. This dynamic pricing allows the market to quickly adapt to new information and reflect the collective intelligence of the participants.
This market resolves around Oct 25, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the Heraklion tennis match between Julio Cesar Porras and Ektoras Tsatsakis. The platform will verify the result against established sports data sources to ensure accuracy. Traders who correctly predicted the outcome will be paid out according to the final share price at the time of resolution. The process is designed to be transparent and rely on publicly available information.
Several signals could significantly move this market before resolution. Any news regarding player injuries, changes in playing conditions (weather, court surface), or unexpected upsets in other matches could influence trader sentiment. Real-time updates during the match itself, such as a player gaining an early lead or facing difficulties, will also likely cause price fluctuations. Furthermore, large trading volume from a single participant or a sudden influx of new traders could also shift the probabilities. Monitoring these factors will be crucial for understanding how this market evolves leading up to Oct 25, 2026.