TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 20, 6:30 AM EST
Polymarket
This market refers to the tennis match between Jakub Filip and Theofanis Kontopoulos in the M15 Heraklion, Qualifying, originally scheduled for October 20, 2026 at 2:30AM ET. This market will resolve to 'Jakub Filip' if Jakub Filip advances against Theofanis Kontopoulos. This market will resolve to 'Theofanis Kontopoulos' if Theofanis Kontopoulos advances against Jakub Filip. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 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 Jakub Filip and Theofanis Kontopoulos in the M15 Heraklion, Qualifying, originally scheduled for October 20, 2026 at 2:30AM ET. This market will resolve to 'Jakub Filip' if Jakub Filip advances against Theofanis Kontopoulos. This market will resolve to 'Theofanis Kontopoulos' if Theofanis Kontopoulos advances against Jakub Filip. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 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.
Typically, prediction market odds reflect the wisdom of the crowd and can differ from traditional sportsbook odds. Sportsbooks often set initial lines based on expert analysis and incorporate a profit margin, while this market allows traders to express their own beliefs about the probability of each player winning. If there's a significant discrepancy, arbitrage opportunities may arise, where traders can profit by simultaneously betting on both platforms. However, it’s important to note that market efficiency and information availability can influence these differences.
On Polymarket, this market is priced through a continuous trading mechanism where users buy and sell shares representing their belief in each outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. As more traders buy shares in a particular player, the price increases, reflecting growing confidence in their victory. 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 supply and demand, representing the collective forecast of all participants regarding the Heraklion tennis match.
This market resolves around Oct 27, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Heraklion tennis match between Jakub Filip and Theofanis Kontopoulos, as reported by a recognized tennis authority. The player who wins the match will be declared the winner of this market. The platform will verify the result against established sports data sources to ensure accuracy and fairness.
Several factors could influence the trading activity in this market. Any news regarding player form, injuries, or changes in playing conditions could shift the probabilities. Unexpected weather forecasts impacting the match schedule or court surface could also be a catalyst. Furthermore, significant betting activity from informed traders or large volume purchases could indicate new information or a change in sentiment, potentially leading to price movements in this market. Publicly available analysis of the players’ recent performance may also affect trading.