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 20, 3:00 AM EST
Polymarket
This market refers to the tennis match between Nadia Podoroska and Petra Marcinko in the Iasi Open, originally scheduled for July 13, 2026 at 3:00AM ET. This market will resolve to 'Nadia Podoroska' if Nadia Podoroska advances against Petra Marcinko. This market will resolve to 'Petra Marcinko' if Petra Marcinko advances against Nadia Podoroska. 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 Nadia Podoroska and Petra Marcinko in the Iasi Open, originally scheduled for July 13, 2026 at 3:00AM ET. This market will resolve to 'Nadia Podoroska' if Nadia Podoroska advances against Petra Marcinko. This market will resolve to 'Petra Marcinko' if Petra Marcinko advances against Nadia Podoroska. 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 and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and manage risk, while prediction markets aggregate the beliefs of traders who profit by forecasting accurately. This market may show higher or lower implied probabilities than major sportsbooks, depending on whether traders perceive an edge. Comparing the two can reveal where the crowd's conviction differs from professional oddsmakers, though both sources carry uncertainty. Neither is inherently more accurate, but the gap between them can signal where analytical disagreement is sharpest.
On Polymarket, this market is priced through an automated market maker that converts trader activity into real-time odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome is represented as a tradeable share, and the price reflects the collective probability estimate of all active traders. As more capital flows into one side, the odds shift accordingly. The system ensures continuous liquidity and transparent pricing, so you can enter or exit positions without waiting for a counterparty. Fees apply to trades, and the final price at market close determines settlement eligibility.
Several factors could shift odds before the match begins. Recent player performance, injury reports, or withdrawal announcements would trigger immediate repricing as traders reassess win probabilities. Head-to-head records, surface preference, and tournament momentum also influence sentiment. Weather conditions or court changes announced closer to game day may spark trading activity. Media coverage highlighting one player's form or confidence can sway the crowd. Sportsbook line movements often precede or follow prediction market moves, so monitoring both venues may reveal emerging consensus. Late-breaking news or player statements in the final hours typically produce the sharpest price swings.