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: Jul 21, 8:00 PM EST
Polymarket
This market refers to the tennis match between Zack Viiala and Taiki Takizawa in the ITF Men Brisbane, originally scheduled for July 14, 2026 at 8:00PM ET. This market will resolve to 'Zack Viiala' if Zack Viiala advances against Taiki Takizawa. This market will resolve to 'Taiki Takizawa' if Taiki Takizawa advances against Zack Viiala. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Zack Viiala and Taiki Takizawa in the ITF Men Brisbane, originally scheduled for July 14, 2026 at 8:00PM ET. This market will resolve to 'Zack Viiala' if Zack Viiala advances against Taiki Takizawa. This market will resolve to 'Taiki Takizawa' if Taiki Takizawa advances against Zack Viiala. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Prediction markets and traditional sportsbooks price events differently. Sportsbooks set odds based on their risk management and profit margins, while prediction markets derive prices from continuous trading among participants who profit by forecasting accurately. This market reflects aggregated trader conviction rather than a bookmaker's spread. Comparing this market's implied probability to major sportsbook lines can reveal where professional bettors and prediction market traders diverge in their assessment of the match outcome.
On Polymarket, this market is priced through an automated market maker that adjusts odds continuously as traders buy and sell outcome shares. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the ratio of shares held in the pool, so larger trades move the odds more dramatically than smaller ones. Traders profit by buying underpriced outcomes and selling overpriced ones, which naturally pushes prices toward fair value over time.
This market resolves around Jul 22, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result, determining which player prevails. Until that point, traders can adjust positions as match conditions, player form, or other factors shift market expectations.
Several factors could shift this market significantly. Player injury reports or withdrawal announcements would trigger sharp repricing. Recent tournament performance, head-to-head records, and court surface suitability all influence trader positioning. Weather conditions on match day and late-breaking news about either player's fitness or form can cause rapid price swings. Additionally, early match momentum—if live trading is enabled—could reflect real-time performance, drawing new traders into the market and amplifying volatility.