TOTAL VOLUME:
$154.5b
24H VOL:
$271,200,656
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,922,627,141
420,368
Markets across
40,352
events
MATCHED EVENTS:
4,484
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 27, 1:24 PM EST
Polymarket
This market refers to the tennis match between Arina Kostina and Salma Djoubri in the W15 Essen, Main Draw, originally scheduled for October 27, 2026 at 9:00AM ET. This market will resolve to 'Arina Kostina' if Arina Kostina advances against Salma Djoubri. This market will resolve to 'Salma Djoubri' if Salma Djoubri advances against Arina Kostina. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 10, 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 Arina Kostina and Salma Djoubri in the W15 Essen, Main Draw, originally scheduled for October 27, 2026 at 9:00AM ET. This market will resolve to 'Arina Kostina' if Arina Kostina advances against Salma Djoubri. This market will resolve to 'Salma Djoubri' if Salma Djoubri advances against Arina Kostina. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 10, 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.
Typically, prediction market odds reflect a wisdom-of-the-crowd perspective, often differing from initial sportsbook offerings. Sportsbooks set lines to balance action and incorporate a profit margin, while this market allows traders to express their own independent assessments. Often, prediction markets become more accurate closer to the event as more information becomes available and trading volume increases. It’s common to see discrepancies, particularly early on, as the market digests news and adjusts probabilities based on collective insight. Analyzing these differences can reveal where the crowd disagrees with professional oddsmakers.
This market resolves around Nov 3, 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 Essen tennis match between Arina Kostina and Salma Djoubri. The platform will verify the outcome against widely available and trustworthy sources to determine the winning outcome. This ensures a transparent and reliable resolution process, reflecting the actual result of the sporting event. Traders will be able to claim their winnings based on the final, verified result.
Several factors could influence the trading activity in this market. Any news regarding player form, injuries, or changes in playing conditions could significantly shift the odds. Unexpected announcements about either Arina Kostina or Salma Djoubri’s physical condition or recent performance would likely cause a reaction. Furthermore, broader tennis news or upsets in related tournaments could also impact sentiment. Increased trading volume, driven by new information or shifts in public opinion, will be a key indicator of potential price movements in this market.