TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 10, 1:17 PM EST
Polymarket
This market refers to the tennis match between Xinran Sun and Mariia Makarova in the US Open Juniors, Girls, originally scheduled for September 10, 2026 at 12:00PM ET. This market will resolve to 'Xinran Sun' if Xinran Sun advances against Mariia Makarova. This market will resolve to 'Mariia Makarova' if Mariia Makarova advances against Xinran Sun. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 24, 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 Xinran Sun and Mariia Makarova in the US Open Juniors, Girls, originally scheduled for September 10, 2026 at 12:00PM ET. This market will resolve to 'Xinran Sun' if Xinran Sun advances against Mariia Makarova. This market will resolve to 'Mariia Makarova' if Mariia Makarova advances against Xinran Sun. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 24, 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.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in each player’s chance of winning. The price of a share directly corresponds to the implied probability of that outcome. 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, reflecting the collective forecast. The market’s efficiency relies on active participation and informed trading, making it a dynamic representation of expectations for the US Open Juniors Girls match.
This market resolves around Sep 17, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the US Open Juniors Girls match, as declared by the tournament organizers. The player who wins the match will determine the winning outcome in this market. Traders will then be able to claim their winnings based on the final result and their positions in the market.
Several factors could influence the price of this market before the match concludes. Any news regarding player injuries, changes in playing conditions, or updated rankings could shift trader sentiment. Strong performances in preceding matches, or even pre-match interviews revealing a player’s strategy or confidence level, could also impact the odds. Unexpected weather conditions on the day of the match could also be a catalyst, as these can affect player performance and potentially influence the outcome of the US Open Juniors Girls match.