TOTAL VOLUME:
$154.7b
24H VOL:
$279,496,801
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,923,931,766
416,910
Markets across
40,107
events
MATCHED EVENTS:
4,571
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 18, 7:20 AM EST
Polymarket
This market refers to the tennis match between Alex Kuperstein and Goncalo Da Rosa Castro in the M15 Bol, Qualifying, originally scheduled for October 18, 2026 at 3:00AM ET. This market will resolve to 'Alex Kuperstein' if Alex Kuperstein advances against Goncalo Da Rosa Castro. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Alex Kuperstein. 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 Alex Kuperstein and Goncalo Da Rosa Castro in the M15 Bol, Qualifying, originally scheduled for October 18, 2026 at 3:00AM ET. This market will resolve to 'Alex Kuperstein' if Alex Kuperstein advances against Goncalo Da Rosa Castro. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Alex Kuperstein. 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 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 perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders who believe an outcome is likely, the higher the price of its shares will rise, and vice versa. This dynamic pricing ensures that the market reflects the latest information and collective intelligence of the traders.
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 Kuperstein vs. Castro match as reported by recognized sports authorities. The platform will then determine the winning outcome and distribute payouts to those who correctly predicted the result. It’s important to note that the resolution process relies on publicly available information to ensure a fair and transparent outcome for all participants.
Several factors could influence the price of shares in this market leading up to Oct 25, 2026. Any news regarding the players’ form, potential injuries, or changes in coaching strategies could shift trader sentiment. Unexpected announcements about match conditions or venue changes could also have an impact. Furthermore, large trading volume from informed participants could signal new information or a change in expectations, causing the market to react accordingly. Monitoring these signals will be key to understanding potential price movements.