TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 21, 11:56 PM EST
Polymarket
This market refers to the tennis match between William Mirarchi and Max Stenzer in the M15 Columbia, SC, Qualifying, originally scheduled for September 21, 2026 at 1:00PM ET. This market will resolve to 'William Mirarchi' if William Mirarchi advances against Max Stenzer. This market will resolve to 'Max Stenzer' if Max Stenzer advances against William Mirarchi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 5, 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 Mirarchi and Max Stenzer in the M15 Columbia, SC, Qualifying, originally scheduled for September 21, 2026 at 1:00PM ET. This market will resolve to 'William Mirarchi' if William Mirarchi advances against Max Stenzer. This market will resolve to 'Max Stenzer' if Max Stenzer advances against William Mirarchi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 5, 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 different outcomes. The price of each share directly corresponds to the implied probability of that outcome occurring. As more shares are traded, the price adjusts to reflect the collective belief of the participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. 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 Sep 28, 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 Mirarchi vs Stenzer match as reported by the governing body or official sources for this competition. The platform will verify the outcome against these sources to determine which shares will pay out, and at what value. Traders should monitor official announcements to stay informed about the event's progression and eventual conclusion.
Several factors could influence the price of shares in this market leading up to Sep 28, 2026. Any news regarding the condition of William Mirarchi or Max Stenzer – such as injuries or changes in training – could significantly shift the odds. Public analysis or expert opinions on the matchup, if they gain traction, might also impact trading activity. Finally, large volume trades on Polymarket themselves can create momentum and drive price movements, especially if they signal informed betting activity.