TOTAL VOLUME:
$154.3b
24H VOL:
$228,458,490
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,879,276,037
410,833
Markets across
40,345
events
MATCHED EVENTS:
4,363
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 28, 6:49 PM EST
Polymarket
This market refers to the tennis match between William Jansen and Xavier Calvelo in the M25 Las Vegas, NV, Main Draw, originally scheduled for October 28, 2026 at 1:00PM ET. This market will resolve to 'William Jansen' if William Jansen advances against Xavier Calvelo. This market will resolve to 'Xavier Calvelo' if Xavier Calvelo advances against William Jansen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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 William Jansen and Xavier Calvelo in the M25 Las Vegas, NV, Main Draw, originally scheduled for October 28, 2026 at 1:00PM ET. This market will resolve to 'William Jansen' if William Jansen advances against Xavier Calvelo. This market will resolve to 'Xavier Calvelo' if Xavier Calvelo advances against William Jansen. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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 a share directly corresponds to the probability of that outcome occurring. As more traders buy shares in a particular outcome, the price increases, and vice versa. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is determined entirely by supply and demand, reflecting the collective intelligence of the traders participating in this market. This dynamic pricing allows for a real-time assessment of probabilities as new information becomes available.
This market resolves around Nov 4, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the William Jansen vs Xavier Calvelo match as declared by the governing athletic body. The platform will verify the result against established sources to ensure accuracy and transparency. Traders holding shares in the winning outcome will receive a payout equivalent to the final market price of their shares at the time of resolution. The process is designed to be objective and based on publicly available information.
Several signals or events could significantly move this market. Any news regarding the physical condition of either William Jansen or Xavier Calvelo, such as injuries or illness, would likely impact trading activity. Updates on their training regimens, recent performance statistics, or changes in coaching strategies could also influence market prices. Unexpected announcements related to the match location, rules, or officiating could also cause shifts in sentiment. Finally, general shifts in public opinion or expert analysis regarding the likely winner of the match could drive trading volume and price fluctuations.