TOTAL VOLUME:
$134.2b
24H VOL:
$126,590,312
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,439,516,703
404,175
Markets across
30,277
events
MATCHED EVENTS:
2,685
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 8, 1:03 PM EST
Polymarket
This market refers to the tennis match between Ksenia Efremova and Ruien Zhang in the US Open Juniors, Girls, originally scheduled for September 8, 2026 at 11:00AM ET. This market will resolve to 'Ksenia Efremova' if Ksenia Efremova advances against Ruien Zhang. This market will resolve to 'Ruien Zhang' if Ruien Zhang advances against Ksenia Efremova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 22, 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 WTA Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Ksenia Efremova and Ruien Zhang in the US Open Juniors, Girls, originally scheduled for September 8, 2026 at 11:00AM ET. This market will resolve to 'Ksenia Efremova' if Ksenia Efremova advances against Ruien Zhang. This market will resolve to 'Ruien Zhang' if Ruien Zhang advances against Ksenia Efremova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 22, 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 WTA Tour. A consensus of credible reporting may also be used.
Typically, prediction market odds offer a different perspective than traditional sportsbooks. Sportsbooks often incorporate a 'vig' or commission into their odds, while this market aims to represent the true probabilities as assessed by traders. It's common to see discrepancies, particularly before significant events or when public opinion strongly favors one outcome. Comparing this market to sportsbook odds can reveal whether the crowd believes a different result is more likely than conventional wisdom suggests, offering a valuable comparative analysis for those following the US Open Juniors Girls match.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome of the US Open Juniors Girls match. The price of these shares directly reflects the implied probability of each player winning. 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 prices adjust, providing a dynamic and real-time assessment of the likely winner. The current price indicates what traders collectively believe is the chance of Ksenia Efremova or Ruien Zhang winning.
This market resolves around Sep 15, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result declared by the US Open tournament organizers, determining which player emerged victorious in the US Open Juniors Girls match. This ensures a transparent and objective determination of the winning outcome for this market, reflecting the official results of the competition.
Several factors could influence the price movement of this market before Sep 15, 2026. Any news regarding player injuries, changes in playing conditions, or updates on their recent performance could significantly shift trader sentiment. Unexpected upsets in earlier rounds of the tournament, or even commentary from tennis analysts, might also impact the perceived probabilities. Strong support from fans or notable endorsements could also play a role, causing traders to reassess their positions and adjust the odds in this market for the US Open Juniors Girls match.