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 20, 10:25 AM EST
Polymarket
This market refers to the tennis match between Goncalo Da Rosa Castro and Andrea Paolini in the M15 Bol, Qualifying, originally scheduled for October 20, 2026 at 5:00AM ET. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Andrea Paolini. This market will resolve to 'Andrea Paolini' if Andrea Paolini advances against Goncalo Da Rosa Castro. 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 Goncalo Da Rosa Castro and Andrea Paolini in the M15 Bol, Qualifying, originally scheduled for October 20, 2026 at 5:00AM ET. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Andrea Paolini. This market will resolve to 'Andrea Paolini' if Andrea Paolini advances against Goncalo Da Rosa Castro. 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 a wisdom-of-the-crowd perspective, often diverging from initial sportsbook lines. Sportsbooks may set odds based on statistical models and public perception, while this market incorporates the insights of informed traders. If a significant discrepancy exists between prediction market probabilities and sportsbook odds, it could indicate that the market believes the sportsbook is mispricing the event. However, it’s important to remember that both represent probabilities of the same outcome, and differences can arise due to varying information and analytical approaches.
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 reflects the implied 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 a particular outcome is likely, the price of shares representing that outcome will increase, and vice versa. This creates a dynamic pricing system that responds to new information and changing sentiment.
This market resolves around Oct 27, 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 Da Rosa Castro vs Paolini match as reported by a recognized tennis authority. The platform will verify the outcome against these sources to determine which outcome corresponds to the actual result of the match. Traders holding shares in the winning outcome will be entitled to a payout based on the final market price at the time of resolution.
Several factors could influence the price of this market before Oct 27, 2026. Any news regarding player injuries, changes in playing surface conditions, or significant shifts in player form could all impact trader sentiment. Unexpected results in other matches involving these players, or even broader tennis news, could also contribute to price movements. Furthermore, large trades by influential market participants could cause short-term fluctuations. Monitoring these signals will be key to understanding how this market evolves leading up to the match’s conclusion.