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 28, 2:30 PM EST
Polymarket
This market refers to the tennis match between Carola Celina Sosa and Melissa Boyden in the W15 Neuquén, Main Draw, originally scheduled for October 28, 2026 at 9:00AM ET. This market will resolve to 'Carola Celina Sosa' if Carola Celina Sosa advances against Melissa Boyden. This market will resolve to 'Melissa Boyden' if Melissa Boyden advances against Carola Celina Sosa. 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 Carola Celina Sosa and Melissa Boyden in the W15 Neuquén, Main Draw, originally scheduled for October 28, 2026 at 9:00AM ET. This market will resolve to 'Carola Celina Sosa' if Carola Celina Sosa advances against Melissa Boyden. This market will resolve to 'Melissa Boyden' if Melissa Boyden advances against Carola Celina Sosa. 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.
Prediction market odds often reflect the collective wisdom of a diverse group of participants, potentially differing from those set by sportsbooks. Sportsbooks establish lines based on their own models and aim to balance action on both sides, while this market relies on traders directly expressing their beliefs about the probability of each outcome. Discrepancies can arise due to differing information, biases, or simply variations in analytical approaches. It's common to see prediction markets incorporate information more quickly than traditional bookmakers, especially in response to breaking news or unexpected developments related to the players involved.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the likelihood of each outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and express their views, the market price adjusts to reflect the aggregated sentiment. This dynamic pricing system aims to create a real-time assessment of the event's potential outcomes, driven entirely by the collective decisions of market participants. The current trading volume indicates the level of interest and conviction surrounding the Sosa vs Boyden match.
This market resolves around Nov 4, 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 W15 Neuquén match between Carola Celina Sosa and Melissa Boyden. The platform will rely on widely available and trusted sources to determine the winner, ensuring a transparent and objective assessment of the event's conclusion. Any disputes or ambiguities will be addressed according to Polymarket’s standard procedures for verifying event outcomes.
Several factors could influence the trading activity in this market leading up to Nov 4, 2026. News regarding player form, injuries, or changes in playing conditions could significantly shift trader sentiment. Unexpected announcements about coaching strategies or team dynamics could also play a role. Furthermore, any significant shifts in public opinion, as reflected in polls or expert analyses, could impact the price of shares. A strong performance by either player in a preceding match, or even social media buzz surrounding their preparation, could also contribute to market movements.