TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 11, 2:51 PM EST
Polymarket
This market refers to the tennis match between Robin Montgomery and Julia Grabher in the Cincinnati Open, Qualification, originally scheduled for August 11, 2026 at 10:30AM ET. This market will resolve to 'Robin Montgomery' if Robin Montgomery advances against Julia Grabher. This market will resolve to 'Julia Grabher' if Julia Grabher advances against Robin Montgomery. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 Robin Montgomery and Julia Grabher in the Cincinnati Open, Qualification, originally scheduled for August 11, 2026 at 10:30AM ET. This market will resolve to 'Robin Montgomery' if Robin Montgomery advances against Julia Grabher. This market will resolve to 'Julia Grabher' if Julia Grabher advances against Robin Montgomery. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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.
Prediction market odds in this market often reflect a different outlook compared to traditional sportsbook lines. While sportsbooks incorporate expert analysis and adjusted probabilities, prediction markets are driven purely by trader sentiment and betting activity. This can lead to tighter spreads or more volatile price swings, especially as new information emerges — such as player injuries or recent form — that influences trader confidence. Comparing the two provides a broader perspective on market expectations versus institutional forecasts.
On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Polymarket, this market is priced through continuous trading where participants set odds based on their expectations for the match outcome. The current probability reflects the collective judgment of all traders on the platform, updated instantly with each new trade. This mechanism captures real-time sentiment and can show sharp movements in response to breaking news or shifting perceptions about player performance or match conditions.
This market resolves around Aug 18, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is determined by the official match conclusion, and the platform will update the market accordingly. Traders should monitor reputable sports news sources for confirmed results, as the market settles based on independently verified data rather than internal assessments.
Several signals could shift this market before it resolves, including updates on player health, such as injuries or fatigue, changes in tournament conditions like weather or surface quality, and key performances in preceding matches that affect confidence levels. Media coverage and expert commentary may also sway trader sentiment. Any unexpected developments — for instance, a sudden change in form or strategy — can cause rapid adjustments in odds as traders reassess their positions.