TOTAL VOLUME:
$154.6b
24H VOL:
$323,326,361
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,969,435,260
419,363
Markets across
40,411
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 7, 10:17 PM EST
Polymarket
This market refers to the tennis match between Janae Preston and Ana Grubor in the W35 Las Vegas, NV, Main Draw, originally scheduled for October 7, 2026 at 4:00PM ET. This market will resolve to 'Janae Preston' if Janae Preston advances against Ana Grubor. This market will resolve to 'Ana Grubor' if Ana Grubor advances against Janae Preston. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 21, 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 Janae Preston and Ana Grubor in the W35 Las Vegas, NV, Main Draw, originally scheduled for October 7, 2026 at 4:00PM ET. This market will resolve to 'Janae Preston' if Janae Preston advances against Ana Grubor. This market will resolve to 'Ana Grubor' if Ana Grubor advances against Janae Preston. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 21, 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.
Often, prediction market odds offer a different perspective than traditional sportsbooks. Sportsbooks set lines to balance action and incorporate a profit margin, while this market reflects the collective wisdom of traders who are incentivized to make accurate predictions. Discrepancies can arise due to differing information, biases, or simply varying interpretations of the athletes' capabilities. If there's a significant difference between the implied probability on Polymarket and sportsbook odds, it could signal an opportunity for informed traders to exploit mispricings and potentially gain an edge.
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 Preston vs Grubor match. The price of each 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 buy shares in a particular outcome, its price increases, reflecting growing confidence. Conversely, selling pressure drives prices down. This dynamic process ensures that the market price constantly adjusts to incorporate new information and changing sentiment.
This market resolves around Oct 14, 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 Preston vs Grubor match as declared by the governing sports authority. The platform will verify the result against publicly available data to determine which outcome corresponds to the actual event winner. Traders holding shares in the winning outcome will be entitled to a payout, while those holding shares in the losing outcome will forfeit their investment.
Several factors could influence the price of shares in this market leading up to Oct 14, 2026. Any news regarding player injuries, changes in coaching strategies, or even weather conditions could shift trader sentiment. Unexpected announcements about either Janae Preston or Ana Grubor’s physical condition would likely have a significant impact. Public analysis from sports commentators and experts, as well as any shifts in betting odds from traditional sportsbooks, could also contribute to price movements in this market.