TOTAL VOLUME:
$154.8b
24H VOL:
$244,077,041
24H TRANSACTIONS:
2,985,204,718
OPEN INTEREST:
$1,901,278,909
407,043
Markets across
39,548
events
MATCHED EVENTS:
4,422
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 19, 7:52 AM EST
Polymarket
This market refers to the tennis match between Goncalo Da Rosa Castro and Piotr Galus in the M15 Bol, Qualifying, originally scheduled for October 19, 2026 at 3:30AM ET. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Piotr Galus. This market will resolve to 'Piotr Galus' if Piotr Galus 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 2, 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 Piotr Galus in the M15 Bol, Qualifying, originally scheduled for October 19, 2026 at 3:30AM ET. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Piotr Galus. This market will resolve to 'Piotr Galus' if Piotr Galus 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 2, 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 auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, the price fluctuates, reflecting the collective assessment of the event’s likelihood. The market’s price is determined solely by supply and demand within Polymarket, and isn’t influenced by external factors or other prediction markets.
This market resolves around Oct 26, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Da Rosa Castro vs Galus match, as reported by recognized sports authorities. The platform will verify the result against these sources to determine the winning outcome. Traders holding shares in the winning outcome will be entitled to a payout, while those holding shares in the losing outcome will forfeit their investment. It’s important to monitor official sources as the event approaches for the most up-to-date information.
Several signals could significantly impact this market. Any news regarding player injuries, changes in coaching strategies, or unexpected match conditions could shift trader sentiment. Publicly available analysis from sports experts and commentators could also influence the market, as could significant betting activity in traditional sportsbooks. Unexpected performance in preceding matches, or even weather forecasts impacting playing conditions, are all potential catalysts. Monitoring these factors will be crucial for understanding how the probabilities within this market evolve leading up to Oct 26, 2026.