TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 7, 5:00 AM EST
Polymarket
This market refers to the tennis match between Sarah Van Emst and Lavinia Tanasie in the ITF Women Amstelveen, originally scheduled for June 30, 2026 at 5:00AM ET. This market will resolve to 'Sarah Van Emst' if Sarah Van Emst advances against Lavinia Tanasie. This market will resolve to 'Lavinia Tanasie' if Lavinia Tanasie advances against Sarah Van Emst. 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 Sarah Van Emst and Lavinia Tanasie in the ITF Women Amstelveen, originally scheduled for June 30, 2026 at 5:00AM ET. This market will resolve to 'Sarah Van Emst' if Sarah Van Emst advances against Lavinia Tanasie. This market will resolve to 'Lavinia Tanasie' if Lavinia Tanasie advances against Sarah Van Emst. 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 market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven by trader consensus and real-money conviction. Prediction markets can sometimes offer sharper, more efficient pricing because participants have direct financial exposure to accuracy. However, sportsbooks may move faster on breaking news or injury reports. Comparing the two can reveal valuable gaps: if this market's implied probability differs significantly from a major sportsbook's line, it may signal an arbitrage opportunity or a genuine disagreement about match likelihood.
On Polymarket, traders set the odds by buying and selling outcome shares in an automated market maker (AMM) system. 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 cumulative trades of all participants; as more traders back one player, that outcome's price rises and its implied probability increases. You can enter or exit positions at any time before the market closes, and your trade size influences the price you receive. The spread between bid and ask prices tightens as liquidity grows, making it cheaper to trade in and out of positions during peak activity.
This market resolves around Jul 7, 2026, once the match concludes and the result is verified against credible public sources. The outcome is determined by the official match result: whether Van Emst or Tanasie wins the contest. No ambiguity or dispute resolution is typically required for professional tennis outcomes at this level, as the governing body and tournament officials provide clear, documented results. Traders should monitor the official ITF schedule and any last-minute changes to confirm timing.
Several factors could shift the odds before resolution. Injury reports or player withdrawals would trigger sharp repricing, as would recent form updates or head-to-head history becoming widely known among traders. Weather delays or court surface changes might also influence expectations. News about either player's recent matches, ranking points at stake, or motivation could sway sentiment. Unexpected trading volume spikes—often driven by professional traders or informed bettors—can move the price rapidly. Monitor official ITF announcements, player social media, and tennis news outlets for developments that could reshape how the market prices this matchup.